Update changelog

Co-authored-by: Néstor Pérez <25409753+prryplatypus@users.noreply.github.com>
Co-authored-by: Ryu juheon <saidbysolo@gmail.com>

.github/workflows/codeql-analysis.yml

@@ -2,9 +2,13 @@ name: "CodeQL"
 
 on:
   push:
-    branches: [ main ]
+    branches:
+      - main
+      - "*LTS"
   pull_request:
-    branches: [ main ]
+    branches:
+      - main
+      - "*LTS"
     types: [opened, synchronize, reopened, ready_for_review]
   schedule:
     - cron: '25 16 * * 0'

.github/workflows/coverage.yml

@@ -3,6 +3,7 @@ on:
   push:
     branches:
       - main
+      - "*LTS"
     tags:
       - "!*" # Do not execute on tags
   pull_request:

.github/workflows/pr-bandit.yml

@@ -3,6 +3,7 @@ on:
   pull_request:
     branches:
       - main
+      - "*LTS"
     types: [opened, synchronize, reopened, ready_for_review]
 
 jobs:

.github/workflows/pr-docs.yml

@@ -3,6 +3,7 @@ on:
   pull_request:
     branches:
       - main
+      - "*LTS"
     types: [opened, synchronize, reopened, ready_for_review]
 
 jobs:

.github/workflows/pr-linter.yml

@@ -3,6 +3,7 @@ on:
   pull_request:
     branches:
       - main
+      - "*LTS"
     types: [opened, synchronize, reopened, ready_for_review]
 
 jobs:

.github/workflows/pr-python310.yml

@@ -3,6 +3,7 @@ on:
   pull_request:
     branches:
       - main
+      - "*LTS"
     types: [opened, synchronize, reopened, ready_for_review]
 
 jobs:

.github/workflows/pr-python37.yml

@@ -3,6 +3,7 @@ on:
   pull_request:
     branches:
       - main
+      - "*LTS"
     types: [opened, synchronize, reopened, ready_for_review]
 
 jobs:

.github/workflows/pr-python38.yml

@@ -3,6 +3,7 @@ on:
   pull_request:
     branches:
       - main
+      - "*LTS"
     types: [opened, synchronize, reopened, ready_for_review]
 
 jobs:

.github/workflows/pr-python39.yml

@@ -3,6 +3,7 @@ on:
   pull_request:
     branches:
       - main
+      - "*LTS"
     types: [opened, synchronize, reopened, ready_for_review]
 
 jobs:

.github/workflows/pr-type-check.yml

@@ -3,6 +3,7 @@ on:
   pull_request:
     branches:
       - main
+      - "*LTS"
     types: [opened, synchronize, reopened, ready_for_review]
 
 jobs:
@@ -15,7 +16,7 @@ jobs:
       matrix:
         os: [ubuntu-latest]
         config:
-          - { python-version: 3.7, tox-env: type-checking}
+          # - { python-version: 3.7, tox-env: type-checking}
           - { python-version: 3.8, tox-env: type-checking}
           - { python-version: 3.9, tox-env: type-checking}
           - { python-version: "3.10", tox-env: type-checking}

.github/workflows/pr-windows.yml

@@ -3,6 +3,7 @@ on:
   pull_request:
     branches:
       - main
+      - "*LTS"
     types: [opened, synchronize, reopened, ready_for_review]
 
 jobs:

CHANGELOG.rst

@@ -1,12 +1,12 @@
 .. note::
 
-  From v21.9, CHANGELOG files are maintained in ``./docs/sanic/releases``
+  CHANGELOG files are maintained in ``./docs/sanic/releases``. To view the full CHANGELOG, please visit https://sanic.readthedocs.io/en/stable/sanic/changelog.html.
+
 
 Version 21.6.1
 --------------
 
-Bugfixes
-********
+**Bugfixes**
 
   * `#2178 <https://github.com/sanic-org/sanic/pull/2178>`_
     Update sanic-routing to allow for better splitting of complex URI templates
@@ -20,8 +20,7 @@ Bugfixes
 Version 21.6.0
 --------------
 
-Features
-********
+**Features**
 
   * `#2094 <https://github.com/sanic-org/sanic/pull/2094>`_
     Add ``response.eof()`` method for closing a stream in a handler
@@ -68,8 +67,7 @@ Features
   * `#2170 <https://github.com/sanic-org/sanic/pull/2170>`_
     Additional methods for attaching ``HTTPMethodView``
 
-Bugfixes
-********
+**Bugfixes**
 
   * `#2091 <https://github.com/sanic-org/sanic/pull/2091>`_
     Fix ``UserWarning`` in ASGI mode for missing ``__slots__``
@@ -85,8 +83,7 @@ Bugfixes
     Fix issue where Blueprint exception handlers do not consistently route to proper handler
 
 
-Deprecations and Removals
-*************************
+**Deprecations and Removals**
 
   * `#2156 <https://github.com/sanic-org/sanic/pull/2156>`_
     Remove config value ``REQUEST_BUFFER_QUEUE_SIZE``
@@ -95,14 +92,12 @@ Deprecations and Removals
   * `#2172 <https://github.com/sanic-org/sanic/pull/2170>`_
     Deprecate StreamingHTTPResponse
 
-Developer infrastructure
-************************
+**Developer infrastructure**
 
   * `#2149 <https://github.com/sanic-org/sanic/pull/2149>`_
     Remove Travis CI in favor of GitHub Actions
 
-Improved Documentation
-**********************
+**Improved Documentation**
 
   * `#2164 <https://github.com/sanic-org/sanic/pull/2164>`_
     Fix typo in documentation
@@ -112,8 +107,7 @@ Improved Documentation
 Version 21.3.2
 --------------
 
-Bugfixes
-********
+**Bugfixes**
 
   * `#2081 <https://github.com/sanic-org/sanic/pull/2081>`_
     Disable response timeout on websocket connections
@@ -124,8 +118,7 @@ Bugfixes
 Version 21.3.1
 --------------
 
-Bugfixes
-********
+**Bugfixes**
 
   * `#2076 <https://github.com/sanic-org/sanic/pull/2076>`_
     Static files inside subfolders are not accessible (404)
@@ -135,8 +128,7 @@ Version 21.3.0
 
 `Release Notes <https://sanicframework.org/en/guide/release-notes/v21.3.html>`_
 
-Features
-********
+**Features**
 
   *
     `#1876 <https://github.com/sanic-org/sanic/pull/1876>`_
@@ -189,8 +181,7 @@ Features
     `#2063 <https://github.com/sanic-org/sanic/pull/2063>`_
     App and connection level context objects
 
-Bugfixes and issues resolved
-****************************
+**Bugfixes**
 
   * Resolve `#1420 <https://github.com/sanic-org/sanic/pull/1420>`_
     ``url_for`` where ``strict_slashes`` are on for a path ending in ``/``
@@ -220,8 +211,7 @@ Bugfixes and issues resolved
     `#2001 <https://github.com/sanic-org/sanic/pull/2001>`_
     Raise ValueError when cookie max-age is not an integer
 
-Deprecations and Removals
-*************************
+**Deprecations and Removals**
 
   *
     `#2007 <https://github.com/sanic-org/sanic/pull/2007>`_
@@ -240,8 +230,7 @@ Deprecations and Removals
   * ``Request.endpoint`` deprecated in favor of ``Request.name``
   * handler type name prefixes removed (static, websocket, etc)
 
-Developer infrastructure
-************************
+**Developer infrastructure**
 
   *
     `#1995 <https://github.com/sanic-org/sanic/pull/1995>`_
@@ -259,8 +248,7 @@ Developer infrastructure
     `#2049 <https://github.com/sanic-org/sanic/pull/2049>`_
     Updated setup.py to use ``find_packages``
 
-Improved Documentation
-**********************
+**Improved Documentation**
 
   *
     `#1218 <https://github.com/sanic-org/sanic/pull/1218>`_
@@ -282,8 +270,7 @@ Improved Documentation
     `#2052 <https://github.com/sanic-org/sanic/pull/2052>`_
     Fix some examples and docs
 
-Miscellaneous
-*************
+**Miscellaneous**
 
   * ``Request.route`` property
   * Better websocket subprotocols support
@@ -329,8 +316,7 @@ Miscellaneous
 Version 20.12.3
 ---------------
 
-Bugfixes
-********
+**Bugfixes**
 
   *
     `#2021 <https://github.com/sanic-org/sanic/pull/2021>`_
@@ -339,8 +325,7 @@ Bugfixes
 Version 20.12.2
 ---------------
 
-Dependencies
-************
+**Dependencies**
 
   *
     `#2026 <https://github.com/sanic-org/sanic/pull/2026>`_
@@ -353,8 +338,7 @@ Dependencies
 Version 19.12.5
 ---------------
 
-Dependencies
-************
+**Dependencies**
 
   *
     `#2025 <https://github.com/sanic-org/sanic/pull/2025>`_
@@ -367,8 +351,7 @@ Dependencies
 Version 20.12.0
 ---------------
 
-Features
-********
+**Features**
 
   *
     `#1993 <https://github.com/sanic-org/sanic/pull/1993>`_
@@ -377,8 +360,7 @@ Features
 Version 20.12.0
 ---------------
 
-Features
-********
+**Features**
 
   *
     `#1945 <https://github.com/sanic-org/sanic/pull/1945>`_
@@ -416,22 +398,19 @@ Features
     `#1979 <https://github.com/sanic-org/sanic/pull/1979>`_
     Add app registry and Sanic class level app retrieval
 
-Bugfixes
-********
+**Bugfixes**
 
   *
     `#1965 <https://github.com/sanic-org/sanic/pull/1965>`_
     Fix Chunked Transport-Encoding in ASGI streaming response
 
-Deprecations and Removals
-*************************
+**Deprecations and Removals**
 
   *
     `#1981 <https://github.com/sanic-org/sanic/pull/1981>`_
     Cleanup and remove deprecated code
 
-Developer infrastructure
-************************
+**Developer infrastructure**
 
   *
     `#1956 <https://github.com/sanic-org/sanic/pull/1956>`_
@@ -445,8 +424,7 @@ Developer infrastructure
     `#1986 <https://github.com/sanic-org/sanic/pull/1986>`_
     Update tox requirements
 
-Improved Documentation
-**********************
+**Improved Documentation**
 
   *
     `#1951 <https://github.com/sanic-org/sanic/pull/1951>`_
@@ -464,8 +442,7 @@ Improved Documentation
 Version 20.9.1
 ---------------
 
-Bugfixes
-********
+**Bugfixes**
 
   *
     `#1954 <https://github.com/sanic-org/sanic/pull/1954>`_
@@ -478,8 +455,7 @@ Bugfixes
 Version 19.12.3
 ---------------
 
-Bugfixes
-********
+**Bugfixes**
 
   *
     `#1959 <https://github.com/sanic-org/sanic/pull/1959>`_
@@ -490,8 +466,7 @@ Version 20.9.0
 ---------------
 
 
-Features
-********
+**Features**
 
   *
     `#1887 <https://github.com/sanic-org/sanic/pull/1887>`_
@@ -518,22 +493,19 @@ Features
     `#1937 <https://github.com/sanic-org/sanic/pull/1937>`_
     Added auto, text, and json fallback error handlers (in v21.3, the default will change form html to auto)
 
-Bugfixes
-********
+**Bugfixes**
 
   *
     `#1897 <https://github.com/sanic-org/sanic/pull/1897>`_
     Resolves exception from unread bytes in stream
 
-Deprecations and Removals
-*************************
+**Deprecations and Removals**
 
   *
     `#1903 <https://github.com/sanic-org/sanic/pull/1903>`_
     config.from_envar, config.from_pyfile, and config.from_object are deprecated and set to be removed in v21.3
 
-Developer infrastructure
-************************
+**Developer infrastructure**
 
   *
     `#1890 <https://github.com/sanic-org/sanic/pull/1890>`_,
@@ -548,8 +520,7 @@ Developer infrastructure
     `#1924 <https://github.com/sanic-org/sanic/pull/1924>`_
     Adding --strict-markers for pytest
 
-Improved Documentation
-**********************
+**Improved Documentation**
 
   *
     `#1922 <https://github.com/sanic-org/sanic/pull/1922>`_
@@ -559,8 +530,7 @@ Improved Documentation
 Version 20.6.3
 ---------------
 
-Bugfixes
-********
+**Bugfixes**
 
   *
     `#1884 <https://github.com/sanic-org/sanic/pull/1884>`_
@@ -570,8 +540,7 @@ Bugfixes
 Version 20.6.2
 ---------------
 
-Features
-********
+**Features**
 
   *
     `#1641 <https://github.com/sanic-org/sanic/pull/1641>`_
@@ -581,8 +550,7 @@ Features
 Version 20.6.1
 ---------------
 
-Features
-********
+**Features**
 
   *
     `#1760 <https://github.com/sanic-org/sanic/pull/1760>`_
@@ -596,8 +564,7 @@ Features
     `#1880 <https://github.com/sanic-org/sanic/pull/1880>`_
     Add handler names for websockets for url_for usage
 
-Bugfixes
-********
+**Bugfixes**
 
   *
     `#1776 <https://github.com/sanic-org/sanic/pull/1776>`_
@@ -619,15 +586,13 @@ Bugfixes
     `#1853 <https://github.com/sanic-org/sanic/pull/1853>`_
     Fix pickle error when attempting to pickle an application which contains websocket routes
 
-Deprecations and Removals
-*************************
+**Deprecations and Removals**
 
   *
     `#1739 <https://github.com/sanic-org/sanic/pull/1739>`_
     Deprecate body_bytes to merge into body
 
-Developer infrastructure
-************************
+**Developer infrastructure**
 
   *
     `#1852 <https://github.com/sanic-org/sanic/pull/1852>`_
@@ -642,8 +607,7 @@ Developer infrastructure
     Wrap run()'s "protocol" type annotation in Optional[]
 
 
-Improved Documentation
-**********************
+**Improved Documentation**
 
   *
     `#1846 <https://github.com/sanic-org/sanic/pull/1846>`_
@@ -663,8 +627,7 @@ Version 20.6.0
 Version 20.3.0
 ---------------
 
-Features
-********
+**Features**
 
   *
     `#1762 <https://github.com/sanic-org/sanic/pull/1762>`_
@@ -695,8 +658,7 @@ Features
     `#1820 <https://github.com/sanic-org/sanic/pull/1820>`_
     Do not set content-type and content-length headers in exceptions
 
-Bugfixes
-********
+**Bugfixes**
 
   *
     `#1748 <https://github.com/sanic-org/sanic/pull/1748>`_
@@ -714,8 +676,7 @@ Bugfixes
     `#1808 <https://github.com/sanic-org/sanic/pull/1808>`_
      Fix Ctrl+C and tests on Windows
 
-Deprecations and Removals
-*************************
+**Deprecations and Removals**
 
   *
     `#1800 <https://github.com/sanic-org/sanic/pull/1800>`_
@@ -733,8 +694,7 @@ Deprecations and Removals
     `#1818 <https://github.com/sanic-org/sanic/pull/1818>`_
     Complete deprecation of ``app.remove_route`` and ``request.raw_args``
 
-Dependencies
-************
+**Dependencies**
 
   *
     `#1794 <https://github.com/sanic-org/sanic/pull/1794>`_
@@ -744,15 +704,13 @@ Dependencies
     `#1806 <https://github.com/sanic-org/sanic/pull/1806>`_
     Import ``ASGIDispatch`` from top-level ``httpx`` (from third-party deprecation)
 
-Developer infrastructure
-************************
+**Developer infrastructure**
 
   *
     `#1833 <https://github.com/sanic-org/sanic/pull/1833>`_
     Resolve broken documentation builds
 
-Improved Documentation
-**********************
+**Improved Documentation**
 
   *
     `#1755 <https://github.com/sanic-org/sanic/pull/1755>`_
@@ -794,8 +752,7 @@ Improved Documentation
 Version 19.12.0
 ---------------
 
-Bugfixes
-********
+**Bugfixes**
 
 - Fix blueprint middleware application
 
@@ -814,8 +771,7 @@ Bugfixes
   due to an `AttributeError`. This fix makes the availability of `SERVER_NAME` on our `app.config` an optional behavior. (`#1707 <https://github.com/sanic-org/sanic/issues/1707>`__)
 
 
-Improved Documentation
-**********************
+**Improved Documentation**
 
 - Move docs from MD to RST
 
@@ -829,8 +785,7 @@ Improved Documentation
 Version 19.6.3
 --------------
 
-Features
-********
+**Features**
 
 - Enable Towncrier Support
 
@@ -838,8 +793,7 @@ Features
   of generating and managing change logs as part of each of pull requests. (`#1631 <https://github.com/sanic-org/sanic/issues/1631>`__)
 
 
-Improved Documentation
-**********************
+**Improved Documentation**
 
 - Documentation infrastructure changes
 
@@ -852,8 +806,7 @@ Improved Documentation
 Version 19.6.2
 --------------
 
-Features
-********
+**Features**
 
   *
     `#1562 <https://github.com/sanic-org/sanic/pull/1562>`_
@@ -869,8 +822,7 @@ Features
     Add Configure support from object string
 
 
-Bugfixes
-********
+**Bugfixes**
 
   *
     `#1587 <https://github.com/sanic-org/sanic/pull/1587>`_
@@ -888,8 +840,7 @@ Bugfixes
     `#1594 <https://github.com/sanic-org/sanic/pull/1594>`_
     Strict Slashes behavior fix
 
-Deprecations and Removals
-*************************
+**Deprecations and Removals**
 
   *
     `#1544 <https://github.com/sanic-org/sanic/pull/1544>`_
@@ -913,8 +864,7 @@ Deprecations and Removals
 Version 19.3
 ------------
 
-Features
-********
+**Features**
 
   *
     `#1497 <https://github.com/sanic-org/sanic/pull/1497>`_
@@ -982,8 +932,7 @@ Features
 
     This is a breaking change.
 
-Bugfixes
-********
+**Bugfixes**
 
 
   *
@@ -1019,8 +968,7 @@ Bugfixes
     This allows the access log to be disabled for example when running via
     gunicorn.
 
-Developer infrastructure
-************************
+**Developer infrastructure**
 
   * `#1529 <https://github.com/sanic-org/sanic/pull/1529>`_ Update project PyPI credentials
   * `#1515 <https://github.com/sanic-org/sanic/pull/1515>`_ fix linter issue causing travis build failures (fix #1514)
@@ -1028,8 +976,7 @@ Developer infrastructure
   * `#1478 <https://github.com/sanic-org/sanic/pull/1478>`_ Upgrade setuptools version and use native docutils in doc build
   * `#1464 <https://github.com/sanic-org/sanic/pull/1464>`_ Upgrade pytest, and fix caplog unit tests
 
-Improved Documentation
-**********************
+**Improved Documentation**
 
   * `#1516 <https://github.com/sanic-org/sanic/pull/1516>`_ Fix typo at the exception documentation
   * `#1510 <https://github.com/sanic-org/sanic/pull/1510>`_ fix typo in Asyncio example
@@ -1096,15 +1043,13 @@ Version 18.12
 Version 0.8
 -----------
 
-0.8.3
-*****
+**0.8.3**
 
 * Changes:
 
   * Ownership changed to org 'sanic-org'
 
-0.8.0
-*****
+**0.8.0**
 
 * Changes:
 
@@ -1184,19 +1129,16 @@ Version 0.1
 -----------
 
 
-0.1.7
-*****
+**0.1.7**
 
   * Reversed static url and directory arguments to meet spec
 
-0.1.6
-*****
+**0.1.6**
 
   * Static files
   * Lazy Cookie Loading
 
-0.1.5
-*****
+**0.1.5**
 
   * Cookies
   * Blueprint listeners and ordering
@@ -1204,23 +1146,19 @@ Version 0.1
   * Fix: Incomplete file reads on medium+ sized post requests
   * Breaking: after_start and before_stop now pass sanic as their first argument
 
-0.1.4
-*****
+**0.1.4**
 
   * Multiprocessing
 
-0.1.3
-*****
+**0.1.3**
 
   * Blueprint support
   * Faster Response processing
 
-0.1.1 - 0.1.2
-*************
+**0.1.1 - 0.1.2**
 
   * Struggling to update pypi via CI
 
-0.1.0
-*****
+**0.1.0**
 
   * Released to public

README.rst

@@ -11,7 +11,7 @@ Sanic | Build fast. Run fast.
     :stub-columns: 1
 
     * - Build
-      - | |Py39Test| |Py38Test| |Py37Test|
+      - | |Py310Test| |Py39Test| |Py38Test| |Py37Test|
     * - Docs
       - | |UserGuide| |Documentation|
     * - Package
@@ -27,6 +27,8 @@ Sanic | Build fast. Run fast.
    :target: https://community.sanicframework.org/
 .. |Discord| image:: https://img.shields.io/discord/812221182594121728?logo=discord
    :target: https://discord.gg/FARQzAEMAA
+.. |Py310Test| image:: https://github.com/sanic-org/sanic/actions/workflows/pr-python310.yml/badge.svg?branch=main
+   :target: https://github.com/sanic-org/sanic/actions/workflows/pr-python310.yml
 .. |Py39Test| image:: https://github.com/sanic-org/sanic/actions/workflows/pr-python39.yml/badge.svg?branch=main
    :target: https://github.com/sanic-org/sanic/actions/workflows/pr-python39.yml
 .. |Py38Test| image:: https://github.com/sanic-org/sanic/actions/workflows/pr-python38.yml/badge.svg?branch=main

docs/sanic/api/core.rst

@@ -38,10 +38,3 @@ sanic.views
 .. automodule:: sanic.views
     :members:
     :show-inheritance:
-
-sanic.websocket
----------------
-
-.. automodule:: sanic.websocket
-    :members:
-    :show-inheritance:

docs/sanic/changelog.rst

@@ -1,6 +1,6 @@
 📜 Changelog
 ============
 
-.. mdinclude:: ./releases/21.9.md
-
+.. mdinclude:: ./releases/21/21.12.md
+.. mdinclude:: ./releases/21/21.9.md
 .. include:: ../../CHANGELOG.rst

docs/sanic/releases/21/21.12.md

@@ -0,0 +1,64 @@
+## Version 21.12.1
+
+- [#2349](https://github.com/sanic-org/sanic/pull/2349) Only display MOTD on startup
+- [#2354](https://github.com/sanic-org/sanic/pull/2354) Ignore name argument in Python 3.7
+- [#2355](https://github.com/sanic-org/sanic/pull/2355) Add config.update support for all config values
+
+## Version 21.12.0
+
+### Features
+- [#2260](https://github.com/sanic-org/sanic/pull/2260) Allow early Blueprint registrations to still apply later added objects
+- [#2262](https://github.com/sanic-org/sanic/pull/2262) Noisy exceptions - force logging of all exceptions
+- [#2264](https://github.com/sanic-org/sanic/pull/2264) Optional `uvloop` by configuration
+- [#2270](https://github.com/sanic-org/sanic/pull/2270) Vhost support using multiple TLS certificates
+- [#2277](https://github.com/sanic-org/sanic/pull/2277) Change signal routing for increased consistency
+    - *BREAKING CHANGE*: If you were manually routing signals there is a breaking change. The signal router's `get` is no longer 100% determinative. There is now an additional step to loop thru the returned signals for proper matching on the requirements. If signals are being dispatched using `app.dispatch` or `bp.dispatch`, there is no change.
+- [#2290](https://github.com/sanic-org/sanic/pull/2290) Add contextual exceptions
+- [#2291](https://github.com/sanic-org/sanic/pull/2291) Increase join concat performance 
+- [#2295](https://github.com/sanic-org/sanic/pull/2295), [#2316](https://github.com/sanic-org/sanic/pull/2316), [#2331](https://github.com/sanic-org/sanic/pull/2331) Restructure of CLI and application state with new displays and more command parity with `app.run`
+- [#2302](https://github.com/sanic-org/sanic/pull/2302) Add route context at definition time
+- [#2304](https://github.com/sanic-org/sanic/pull/2304) Named tasks and new API for managing background tasks
+- [#2307](https://github.com/sanic-org/sanic/pull/2307) On app auto-reload, provide insight of changed files
+- [#2308](https://github.com/sanic-org/sanic/pull/2308) Auto extend application with [Sanic Extensions](https://sanicframework.org/en/plugins/sanic-ext/getting-started.html) if it is installed, and provide first class support for accessing the extensions
+- [#2309](https://github.com/sanic-org/sanic/pull/2309) Builtin signals changed to `Enum`
+- [#2313](https://github.com/sanic-org/sanic/pull/2313) Support additional config implementation use case
+- [#2321](https://github.com/sanic-org/sanic/pull/2321) Refactor environment variable hydration logic
+- [#2327](https://github.com/sanic-org/sanic/pull/2327) Prevent sending multiple or mixed responses on a single request
+- [#2330](https://github.com/sanic-org/sanic/pull/2330) Custom type casting on environment variables
+- [#2332](https://github.com/sanic-org/sanic/pull/2332) Make all deprecation notices consistent
+- [#2335](https://github.com/sanic-org/sanic/pull/2335) Allow underscore to start instance names
+
+### Bugfixes
+- [#2273](https://github.com/sanic-org/sanic/pull/2273) Replace assignation by typing for `websocket_handshake`
+- [#2285](https://github.com/sanic-org/sanic/pull/2285) Fix IPv6 display in startup logs
+- [#2299](https://github.com/sanic-org/sanic/pull/2299) Dispatch `http.lifecyle.response` from exception handler
+
+### Deprecations and Removals
+- [#2306](https://github.com/sanic-org/sanic/pull/2306) Removal of deprecated items
+    - `Sanic` and `Blueprint` may no longer have arbitrary properties attached to them
+    - `Sanic` and `Blueprint` forced to have compliant names
+        - alphanumeric + `_` + `-`
+        - must start with letter or `_`
+    - `load_env` keyword argument of `Sanic`
+    - `sanic.exceptions.abort`
+    - `sanic.views.CompositionView`
+    - `sanic.response.StreamingHTTPResponse`
+        - *NOTE:* the `stream()` response method (where you pass a callable streaming function) has been deprecated and will be removed in v22.6. You should upgrade all streaming responses to the new style: https://sanicframework.org/en/guide/advanced/streaming.html#response-streaming
+- [#2320](https://github.com/sanic-org/sanic/pull/2320) Remove app instance from Config for error handler setting
+
+### Developer infrastructure
+- [#2251](https://github.com/sanic-org/sanic/pull/2251) Change dev install command
+- [#2286](https://github.com/sanic-org/sanic/pull/2286) Change codeclimate complexity threshold from 5 to 10
+- [#2287](https://github.com/sanic-org/sanic/pull/2287) Update host test function names so they are not overwritten
+- [#2292](https://github.com/sanic-org/sanic/pull/2292) Fail CI on error
+- [#2311](https://github.com/sanic-org/sanic/pull/2311), [#2324](https://github.com/sanic-org/sanic/pull/2324) Do not run tests for draft PRs
+- [#2336](https://github.com/sanic-org/sanic/pull/2336) Remove paths from coverage checks
+- [#2338](https://github.com/sanic-org/sanic/pull/2338) Cleanup ports on tests
+
+### Improved Documentation
+- [#2269](https://github.com/sanic-org/sanic/pull/2269), [#2329](https://github.com/sanic-org/sanic/pull/2329), [#2333](https://github.com/sanic-org/sanic/pull/2333) Cleanup typos and fix language
+
+### Miscellaneous
+- [#2257](https://github.com/sanic-org/sanic/pull/2257), [#2294](https://github.com/sanic-org/sanic/pull/2294), [#2341](https://github.com/sanic-org/sanic/pull/2341) Add Python 3.10 support
+- [#2279](https://github.com/sanic-org/sanic/pull/2279), [#2317](https://github.com/sanic-org/sanic/pull/2317), [#2322](https://github.com/sanic-org/sanic/pull/2322) Add/correct missing type annotations
+- [#2305](https://github.com/sanic-org/sanic/pull/2305) Fix examples to use modern implementations

docs/sanic/releases/21/21.9.md

@@ -1,4 +1,14 @@
-## Version 21.9
+## Version 21.9.3
+*Rerelease of v21.9.2 with some cleanup*
+
+## Version 21.9.2
+- [#2268](https://github.com/sanic-org/sanic/pull/2268) Make HTTP connections start in IDLE stage, avoiding delays and error messages
+- [#2310](https://github.com/sanic-org/sanic/pull/2310) More consistent config setting with post-FALLBACK_ERROR_FORMAT apply
+
+## Version 21.9.1
+- [#2259](https://github.com/sanic-org/sanic/pull/2259) Allow non-conforming ErrorHandlers
+
+## Version 21.9.0
 
 ### Features
 - [#2158](https://github.com/sanic-org/sanic/pull/2158), [#2248](https://github.com/sanic-org/sanic/pull/2248) Complete overhaul of I/O to websockets

examples/add_task_sanic.py

@@ -5,7 +5,7 @@ import asyncio
 from sanic import Sanic
 
 
-app = Sanic(__name__)
+app = Sanic("Example")
 
 
 async def notify_server_started_after_five_seconds():

examples/amending_request_object.py

@@ -4,7 +4,7 @@ from sanic import Sanic
 from sanic.response import text
 
 
-app = Sanic(__name__)
+app = Sanic("Example")
 
 
 @app.middleware("request")

examples/authorized_sanic.py

@@ -6,7 +6,7 @@ from sanic import Sanic
 from sanic.response import json
 
 
-app = Sanic(__name__)
+app = Sanic("Example")
 
 
 def check_request_for_authorization_status(request):

examples/blueprint_middlware_execution_order.py

@@ -8,9 +8,9 @@ are added. And blueprint response middleware are executed in _reverse_ order.
 On a valid request, it should print "1 2 3 6 5 4" to terminal
 """
 
-app = Sanic(__name__)
+app = Sanic("Example")
 
-bp = Blueprint("bp_" + __name__)
+bp = Blueprint("bp_example")
 
 
 @bp.on_request

examples/blueprints.py

@@ -2,10 +2,10 @@ from sanic import Blueprint, Sanic
 from sanic.response import file, json
 
 
-app = Sanic(__name__)
-blueprint = Blueprint("name", url_prefix="/my_blueprint")
-blueprint2 = Blueprint("name2", url_prefix="/my_blueprint2")
-blueprint3 = Blueprint("name3", url_prefix="/my_blueprint3")
+app = Sanic("Example")
+blueprint = Blueprint("bp_example", url_prefix="/my_blueprint")
+blueprint2 = Blueprint("bp_example2", url_prefix="/my_blueprint2")
+blueprint3 = Blueprint("bp_example3", url_prefix="/my_blueprint3")
 
 
 @blueprint.route("/foo")

examples/delayed_response.py

@@ -3,7 +3,7 @@ from asyncio import sleep
 from sanic import Sanic, response
 
 
-app = Sanic(__name__, strict_slashes=True)
+app = Sanic("DelayedResponseApp", strict_slashes=True)
 
 
 @app.get("/")

examples/exception_monitoring.py

@@ -41,7 +41,7 @@ from sanic import Sanic
 
 
 handler = CustomHandler()
-app = Sanic(__name__, error_handler=handler)
+app = Sanic("Example", error_handler=handler)
 
 
 @app.route("/")

examples/hello_world.py

@@ -1,7 +1,7 @@
-from sanic import Sanic
-from sanic import response
+from sanic import Sanic, response
 
-app = Sanic(__name__)
+
+app = Sanic("Example")
 
 
 @app.route("/")
@@ -9,5 +9,5 @@ async def test(request):
     return response.json({"test": True})
 
 
-if __name__ == '__main__':
+if __name__ == "__main__":
     app.run(host="0.0.0.0", port=8000)

examples/limit_concurrency.py

@@ -6,7 +6,7 @@ from sanic import Sanic
 from sanic.response import json
 
 
-app = Sanic(__name__)
+app = Sanic("Example")
 
 sem = None
 

examples/log_request_id.py

@@ -44,7 +44,7 @@ LOG_SETTINGS = {
 }
 
 
-app = Sanic(__name__, log_config=LOG_SETTINGS)
+app = Sanic("Example", log_config=LOG_SETTINGS)
 
 
 @app.on_request

examples/logdna_example.py

@@ -43,7 +43,7 @@ logdna = logging.getLogger(__name__)
 logdna.setLevel(logging.INFO)
 logdna.addHandler(logdna_handler)
 
-app = Sanic(__name__)
+app = Sanic("Example")
 
 
 @app.middleware

examples/modify_header_example.py

@@ -2,27 +2,29 @@
 Modify header or status in response
 """
 
-from sanic import Sanic
-from sanic import response
-
-app = Sanic(__name__)
+from sanic import Sanic, response
 
 
-@app.route('/')
+app = Sanic("Example")
+
+
+@app.route("/")
 def handle_request(request):
     return response.json(
-        {'message': 'Hello world!'},
-        headers={'X-Served-By': 'sanic'},
-        status=200
+        {"message": "Hello world!"},
+        headers={"X-Served-By": "sanic"},
+        status=200,
     )
 
 
-@app.route('/unauthorized')
+@app.route("/unauthorized")
 def handle_request(request):
     return response.json(
-        {'message': 'You are not authorized'},
-        headers={'X-Served-By': 'sanic'},
-        status=404
+        {"message": "You are not authorized"},
+        headers={"X-Served-By": "sanic"},
+        status=404,
     )
 
-app.run(host="0.0.0.0", port=8000, debug=True)
+
+if __name__ == "__main__":
+    app.run(host="0.0.0.0", port=8000, debug=True)

examples/pytest_xdist.py

@@ -32,7 +32,7 @@ def test_port(worker_id):
 
 @pytest.fixture(scope="session")
 def app():
-    app = Sanic()
+    app = Sanic("Example")
 
     @app.route("/")
     async def index(request):

examples/raygun_example.py

@@ -8,7 +8,6 @@ from sanic.handlers import ErrorHandler
 
 
 class RaygunExceptionReporter(ErrorHandler):
-
     def __init__(self, raygun_api_key=None):
         super().__init__()
         if raygun_api_key is None:
@@ -22,16 +21,13 @@ class RaygunExceptionReporter(ErrorHandler):
 
 
 raygun_error_reporter = RaygunExceptionReporter()
-app = Sanic(__name__, error_handler=raygun_error_reporter)
+app = Sanic("Example", error_handler=raygun_error_reporter)
 
 
 @app.route("/raise")
 async def test(request):
-    raise SanicException('You Broke It!')
+    raise SanicException("You Broke It!")
 
 
-if __name__ == '__main__':
-    app.run(
-        host="0.0.0.0",
-        port=getenv("PORT", 8080)
-    )
+if __name__ == "__main__":
+    app.run(host="0.0.0.0", port=getenv("PORT", 8080))

examples/redirect_example.py

@@ -1,18 +1,18 @@
-from sanic import Sanic
-from sanic import response
+from sanic import Sanic, response
 
-app = Sanic(__name__)
 
-    
-@app.route('/')
+app = Sanic("Example")
+
+
+@app.route("/")
 def handle_request(request):
-    return response.redirect('/redirect')
+    return response.redirect("/redirect")
 
 
-@app.route('/redirect')
+@app.route("/redirect")
 async def test(request):
     return response.json({"Redirected": True})
 
 
-if __name__ == '__main__':
-    app.run(host="0.0.0.0", port=8000)
+if __name__ == "__main__":
+    app.run(host="0.0.0.0", port=8000)

examples/request_stream/server.py

@@ -1,65 +1,63 @@
 from sanic import Sanic
-from sanic.views import CompositionView
-from sanic.views import HTTPMethodView
-from sanic.views import stream as stream_decorator
 from sanic.blueprints import Blueprint
 from sanic.response import stream, text
+from sanic.views import HTTPMethodView
+from sanic.views import stream as stream_decorator
 
-bp = Blueprint('blueprint_request_stream')
-app = Sanic('request_stream')
+
+bp = Blueprint("bp_example")
+app = Sanic("Example")
 
 
 class SimpleView(HTTPMethodView):
-
     @stream_decorator
     async def post(self, request):
-        result = ''
+        result = ""
         while True:
             body = await request.stream.get()
             if body is None:
                 break
-            result += body.decode('utf-8')
+            result += body.decode("utf-8")
         return text(result)
 
 
-@app.post('/stream', stream=True)
+@app.post("/stream", stream=True)
 async def handler(request):
     async def streaming(response):
         while True:
             body = await request.stream.get()
             if body is None:
                 break
-            body = body.decode('utf-8').replace('1', 'A')
+            body = body.decode("utf-8").replace("1", "A")
             await response.write(body)
+
     return stream(streaming)
 
 
-@bp.put('/bp_stream', stream=True)
+@bp.put("/bp_stream", stream=True)
 async def bp_handler(request):
-    result = ''
+    result = ""
     while True:
         body = await request.stream.get()
         if body is None:
             break
-        result += body.decode('utf-8').replace('1', 'A')
+        result += body.decode("utf-8").replace("1", "A")
     return text(result)
 
 
 async def post_handler(request):
-    result = ''
+    result = ""
     while True:
         body = await request.stream.get()
         if body is None:
             break
-        result += body.decode('utf-8')
+        result += body.decode("utf-8")
     return text(result)
 
+
 app.blueprint(bp)
-app.add_route(SimpleView.as_view(), '/method_view')
-view = CompositionView()
-view.add(['POST'], post_handler, stream=True)
-app.add_route(view, '/composition_view')
+app.add_route(SimpleView.as_view(), "/method_view")
 
 
-if __name__ == '__main__':
-    app.run(host='0.0.0.0', port=8000)
+if __name__ == "__main__":
+    app.run(host="0.0.0.0", port=8000)

examples/request_timeout.py

@@ -1,21 +1,23 @@
 import asyncio
-from sanic import Sanic
-from sanic import response
+
+from sanic import Sanic, response
 from sanic.config import Config
 from sanic.exceptions import RequestTimeout
 
+
 Config.REQUEST_TIMEOUT = 1
-app = Sanic(__name__)
+app = Sanic("Example")
 
 
-@app.route('/')
+@app.route("/")
 async def test(request):
     await asyncio.sleep(3)
-    return response.text('Hello, world!')
+    return response.text("Hello, world!")
 
 
 @app.exception(RequestTimeout)
 def timeout(request, exception):
-    return response.text('RequestTimeout from error_handler.', 408)
+    return response.text("RequestTimeout from error_handler.", 408)
 
-app.run(host='0.0.0.0', port=8000)
+
+app.run(host="0.0.0.0", port=8000)

examples/rollbar_example.py

@@ -1,21 +1,22 @@
+from os import getenv
+
 import rollbar
 
-from sanic.handlers import ErrorHandler
 from sanic import Sanic
 from sanic.exceptions import SanicException
-from os import getenv
+from sanic.handlers import ErrorHandler
+
 
 rollbar.init(getenv("ROLLBAR_API_KEY"))
 
 
 class RollbarExceptionHandler(ErrorHandler):
-
     def default(self, request, exception):
         rollbar.report_message(str(exception))
         return super().default(request, exception)
 
 
-app = Sanic(__name__, error_handler=RollbarExceptionHandler())
+app = Sanic("Example", error_handler=RollbarExceptionHandler())
 
 
 @app.route("/raise")
@@ -24,7 +25,4 @@ def create_error(request):
 
 
 if __name__ == "__main__":
-    app.run(
-        host="0.0.0.0",
-        port=getenv("PORT", 8080)
-    )
+    app.run(host="0.0.0.0", port=getenv("PORT", 8080))

examples/run_asgi.py

@@ -11,7 +11,7 @@ from pathlib import Path
 from sanic import Sanic, response
 
 
-app = Sanic(__name__)
+app = Sanic("Example")
 
 
 @app.route("/text")

examples/run_async.py

@@ -5,7 +5,7 @@ import uvloop
 from sanic import Sanic, response
 
 
-app = Sanic(__name__)
+app = Sanic("Example")
 
 
 @app.route("/")

examples/run_async_advanced.py

@@ -8,7 +8,7 @@ from sanic import Sanic, response
 from sanic.server import AsyncioServer
 
 
-app = Sanic(__name__)
+app = Sanic("Example")
 
 
 @app.before_server_start

examples/sentry_example.py

@@ -6,20 +6,19 @@ from sentry_sdk.integrations.sanic import SanicIntegration
 from sanic import Sanic
 from sanic.response import json
 
+
 sentry_init(
     dsn=getenv("SENTRY_DSN"),
     integrations=[SanicIntegration()],
 )
 
-app = Sanic(__name__)
+app = Sanic("Example")
 
 
 # noinspection PyUnusedLocal
 @app.route("/working")
 async def working_path(request):
-    return json({
-        "response": "Working API Response"
-    })
+    return json({"response": "Working API Response"})
 
 
 # noinspection PyUnusedLocal
@@ -28,8 +27,5 @@ async def raise_error(request):
     raise Exception("Testing Sentry Integration")
 
 
-if __name__ == '__main__':
-    app.run(
-        host="0.0.0.0",
-        port=getenv("PORT", 8080)
-    )
+if __name__ == "__main__":
+    app.run(host="0.0.0.0", port=getenv("PORT", 8080))

examples/static_assets.py

@@ -1,6 +1,6 @@
 from sanic import Sanic
 
 
-app = Sanic(__name__)
+app = Sanic("Example")
 
 app.static("/", "./static")

examples/teapot.py

@@ -1,13 +1,14 @@
 from sanic import Sanic
 from sanic import response as res
 
-app = Sanic(__name__)
+
+app = Sanic("Example")
 
 
 @app.route("/")
 async def test(req):
-    return res.text("I\'m a teapot", status=418)
+    return res.text("I'm a teapot", status=418)
 
 
-if __name__ == '__main__':
+if __name__ == "__main__":
     app.run(host="0.0.0.0", port=8000)

examples/try_everything.py

@@ -5,7 +5,7 @@ from sanic.exceptions import ServerError
 from sanic.log import logger as log
 
 
-app = Sanic(__name__)
+app = Sanic("Example")
 
 
 @app.route("/")

examples/unix_socket.py

@@ -4,7 +4,7 @@ import socket
 from sanic import Sanic, response
 
 
-app = Sanic(__name__)
+app = Sanic("Example")
 
 
 @app.route("/test")

examples/url_for_example.py

@@ -1,7 +1,7 @@
 from sanic import Sanic, response
 
 
-app = Sanic(__name__)
+app = Sanic("Example")
 
 
 @app.route("/")

examples/vhosts.py

@@ -8,7 +8,7 @@ from sanic.blueprints import Blueprint
 # curl -H "Host: bp.example.com" localhost:8000/question
 # curl -H "Host: bp.example.com" localhost:8000/answer
 
-app = Sanic(__name__)
+app = Sanic("Example")
 bp = Blueprint("bp", host="bp.example.com")
 
 

examples/websocket.py

@@ -2,7 +2,7 @@ from sanic import Sanic
 from sanic.response import redirect
 
 
-app = Sanic(__name__)
+app = Sanic("Example")
 
 
 app.static("index.html", "websocket.html")

sanic/__version__.py

@@ -1 +1 @@
-__version__ = "21.12.0dev"
+__version__ = "21.12.1"

sanic/app.py

@@ -1,5 +1,6 @@
 from __future__ import annotations
 
+import asyncio
 import logging
 import logging.config
 import os
@@ -11,6 +12,7 @@ from asyncio import (
     AbstractEventLoop,
     CancelledError,
     Protocol,
+    Task,
     ensure_future,
     get_event_loop,
     wait_for,
@@ -26,6 +28,7 @@ from ssl import SSLContext
 from traceback import format_exc
 from types import SimpleNamespace
 from typing import (
+    TYPE_CHECKING,
     Any,
     AnyStr,
     Awaitable,
@@ -39,10 +42,11 @@ from typing import (
     Set,
     Tuple,
     Type,
+    TypeVar,
     Union,
 )
 from urllib.parse import urlencode, urlunparse
-from warnings import filterwarnings, warn
+from warnings import filterwarnings
 
 from sanic_routing.exceptions import (  # type: ignore
     FinalizationError,
@@ -51,11 +55,12 @@ from sanic_routing.exceptions import (  # type: ignore
 from sanic_routing.route import Route  # type: ignore
 
 from sanic import reloader_helpers
+from sanic.application.ext import setup_ext
 from sanic.application.logo import get_logo
 from sanic.application.motd import MOTD
 from sanic.application.state import ApplicationState, Mode
 from sanic.asgi import ASGIApp
-from sanic.base import BaseSanic
+from sanic.base.root import BaseSanic
 from sanic.blueprint_group import BlueprintGroup
 from sanic.blueprints import Blueprint
 from sanic.compat import OS_IS_WINDOWS, enable_windows_color_support
@@ -67,8 +72,15 @@ from sanic.exceptions import (
     URLBuildError,
 )
 from sanic.handlers import ErrorHandler
+from sanic.helpers import _default
 from sanic.http import Stage
-from sanic.log import LOGGING_CONFIG_DEFAULTS, Colors, error_logger, logger
+from sanic.log import (
+    LOGGING_CONFIG_DEFAULTS,
+    Colors,
+    deprecation,
+    error_logger,
+    logger,
+)
 from sanic.mixins.listeners import ListenerEvent
 from sanic.models.futures import (
     FutureException,
@@ -82,11 +94,11 @@ from sanic.models.futures import (
 from sanic.models.handler_types import ListenerType, MiddlewareType
 from sanic.models.handler_types import Sanic as SanicVar
 from sanic.request import Request
-from sanic.response import BaseHTTPResponse, HTTPResponse
+from sanic.response import BaseHTTPResponse, HTTPResponse, ResponseStream
 from sanic.router import Router
 from sanic.server import AsyncioServer, HttpProtocol
 from sanic.server import Signal as ServerSignal
-from sanic.server import serve, serve_multiple, serve_single
+from sanic.server import serve, serve_multiple, serve_single, try_use_uvloop
 from sanic.server.protocols.websocket_protocol import WebSocketProtocol
 from sanic.server.websockets.impl import ConnectionClosed
 from sanic.signals import Signal, SignalRouter
@@ -94,11 +106,21 @@ from sanic.tls import process_to_context
 from sanic.touchup import TouchUp, TouchUpMeta
 
 
+if TYPE_CHECKING:  # no cov
+    try:
+        from sanic_ext import Extend  # type: ignore
+        from sanic_ext.extensions.base import Extension  # type: ignore
+    except ImportError:
+        Extend = TypeVar("Extend")  # type: ignore
+
+
 if OS_IS_WINDOWS:
     enable_windows_color_support()
 
 filterwarnings("once", category=DeprecationWarning)
 
+SANIC_PACKAGES = ("sanic-routing", "sanic-testing", "sanic-ext")
+
 
 class Sanic(BaseSanic, metaclass=TouchUpMeta):
     """
@@ -111,12 +133,12 @@ class Sanic(BaseSanic, metaclass=TouchUpMeta):
         "_run_response_middleware",
         "_run_request_middleware",
     )
-    __fake_slots__ = (
-        "_app_registry",
+    __slots__ = (
         "_asgi_app",
         "_asgi_client",
         "_blueprint_order",
         "_delayed_tasks",
+        "_ext",
         "_future_exceptions",
         "_future_listeners",
         "_future_middleware",
@@ -125,20 +147,15 @@ class Sanic(BaseSanic, metaclass=TouchUpMeta):
         "_future_signals",
         "_future_statics",
         "_state",
+        "_task_registry",
         "_test_client",
         "_test_manager",
-        "asgi",
-        "auto_reload",
-        "auto_reload",
         "blueprints",
         "config",
         "configure_logging",
         "ctx",
-        "debug",
         "error_handler",
         "go_fast",
-        "is_running",
-        "is_stopping",
         "listeners",
         "name",
         "named_request_middleware",
@@ -150,12 +167,12 @@ class Sanic(BaseSanic, metaclass=TouchUpMeta):
         "signal_router",
         "sock",
         "strict_slashes",
-        "test_mode",
         "websocket_enabled",
         "websocket_tasks",
     )
 
     _app_registry: Dict[str, "Sanic"] = {}
+    _uvloop_setting = None  # TODO: Remove in v22.6
     test_mode = False
 
     def __init__(
@@ -166,7 +183,6 @@ class Sanic(BaseSanic, metaclass=TouchUpMeta):
         router: Optional[Router] = None,
         signal_router: Optional[SignalRouter] = None,
         error_handler: Optional[ErrorHandler] = None,
-        load_env: Union[bool, str] = True,
         env_prefix: Optional[str] = SANIC_PREFIX,
         request_class: Optional[Type[Request]] = None,
         strict_slashes: bool = False,
@@ -182,25 +198,27 @@ class Sanic(BaseSanic, metaclass=TouchUpMeta):
             dict_config = log_config or LOGGING_CONFIG_DEFAULTS
             logging.config.dictConfig(dict_config)  # type: ignore
 
-        if config and (load_env is not True or env_prefix != SANIC_PREFIX):
+        if config and env_prefix != SANIC_PREFIX:
             raise SanicException(
                 "When instantiating Sanic with config, you cannot also pass "
-                "load_env or env_prefix"
+                "env_prefix"
             )
 
+        # First setup config
+        self.config: Config = config or Config(env_prefix=env_prefix)
+
+        # Then we can do the rest
         self._asgi_client: Any = None
-        self._test_client: Any = None
-        self._test_manager: Any = None
         self._blueprint_order: List[Blueprint] = []
         self._delayed_tasks: List[str] = []
         self._future_registry: FutureRegistry = FutureRegistry()
         self._state: ApplicationState = ApplicationState(app=self)
+        self._task_registry: Dict[str, Task] = {}
+        self._test_client: Any = None
+        self._test_manager: Any = None
+        self.asgi = False
+        self.auto_reload = False
         self.blueprints: Dict[str, Blueprint] = {}
-        self.config: Config = config or Config(
-            load_env=load_env,
-            env_prefix=env_prefix,
-            app=self,
-        )
         self.configure_logging: bool = configure_logging
         self.ctx: Any = ctx or SimpleNamespace()
         self.debug = False
@@ -222,6 +240,12 @@ class Sanic(BaseSanic, metaclass=TouchUpMeta):
         self.go_fast = self.run
 
         if register is not None:
+            deprecation(
+                "The register argument is deprecated and will stop working "
+                "in v22.6. After v22.6 all apps will be added to the Sanic "
+                "app registry.",
+                22.6,
+            )
             self.config.REGISTER = register
         if self.config.REGISTER:
             self.__class__.register_app(self)
@@ -252,32 +276,6 @@ class Sanic(BaseSanic, metaclass=TouchUpMeta):
     # Registration
     # -------------------------------------------------------------------- #
 
-    def add_task(
-        self,
-        task: Union[Future[Any], Coroutine[Any, Any, Any], Awaitable[Any]],
-    ) -> None:
-        """
-        Schedule a task to run later, after the loop has started.
-        Different from asyncio.ensure_future in that it does not
-        also return a future, and the actual ensure_future call
-        is delayed until before server start.
-
-        `See user guide re: background tasks
-        <https://sanicframework.org/guide/basics/tasks.html#background-tasks>`__
-
-        :param task: future, couroutine or awaitable
-        """
-        try:
-            loop = self.loop  # Will raise SanicError if loop is not started
-            self._loop_add_task(task, self, loop)
-        except SanicException:
-            task_name = f"sanic.delayed_task.{hash(task)}"
-            if not self._delayed_tasks:
-                self.after_server_start(partial(self.dispatch_delayed_tasks))
-
-            self.signal(task_name)(partial(self.run_delayed_task, task=task))
-            self._delayed_tasks.append(task_name)
-
     def register_listener(
         self, listener: ListenerType[SanicVar], event: str
     ) -> ListenerType[SanicVar]:
@@ -402,12 +400,16 @@ class Sanic(BaseSanic, metaclass=TouchUpMeta):
             websocket_handler.is_websocket = True  # type: ignore
             params["handler"] = websocket_handler
 
+        ctx = params.pop("route_context")
+
         routes = self.router.add(**params)
         if isinstance(routes, Route):
             routes = [routes]
+
         for r in routes:
             r.ctx.websocket = websocket
             r.ctx.static = params.get("static", False)
+            r.ctx.__dict__.update(ctx)
 
         return routes
 
@@ -753,7 +755,7 @@ class Sanic(BaseSanic, metaclass=TouchUpMeta):
                 exception, request.name if request else None
             )
             if handler:
-                warn(
+                deprecation(
                     "An error occurred while handling the request after at "
                     "least some part of the response was sent to the client. "
                     "Therefore, the response from your custom exception "
@@ -768,7 +770,7 @@ class Sanic(BaseSanic, metaclass=TouchUpMeta):
                     "For further information, please see the docs: "
                     "https://sanicframework.org/en/guide/advanced/"
                     "signals.html",
-                    DeprecationWarning,
+                    22.6,
                 )
                 try:
                     response = self.error_handler.response(request, exception)
@@ -821,6 +823,9 @@ class Sanic(BaseSanic, metaclass=TouchUpMeta):
         else:
             if request.stream:
                 response = request.stream.response
+
+        # Marked for cleanup and DRY with handle_request/handle_exception
+        # when ResponseStream is no longer supporder
         if isinstance(response, BaseHTTPResponse):
             await self.dispatch(
                 "http.lifecycle.response",
@@ -831,6 +836,17 @@ class Sanic(BaseSanic, metaclass=TouchUpMeta):
                 },
             )
             await response.send(end_stream=True)
+        elif isinstance(response, ResponseStream):
+            resp = await response(request)
+            await self.dispatch(
+                "http.lifecycle.response",
+                inline=True,
+                context={
+                    "request": request,
+                    "response": resp,
+                },
+            )
+            await response.eof()
         else:
             raise ServerError(
                 f"Invalid response type {response!r} (need HTTPResponse)"
@@ -934,7 +950,8 @@ class Sanic(BaseSanic, metaclass=TouchUpMeta):
             elif not hasattr(handler, "is_websocket"):
                 response = request.stream.response  # type: ignore
 
-            # Make sure that response is finished / run StreamingHTTP callback
+            # Marked for cleanup and DRY with handle_request/handle_exception
+            # when ResponseStream is no longer supporder
             if isinstance(response, BaseHTTPResponse):
                 await self.dispatch(
                     "http.lifecycle.response",
@@ -945,6 +962,17 @@ class Sanic(BaseSanic, metaclass=TouchUpMeta):
                     },
                 )
                 await response.send(end_stream=True)
+            elif isinstance(response, ResponseStream):
+                resp = await response(request)
+                await self.dispatch(
+                    "http.lifecycle.response",
+                    inline=True,
+                    context={
+                        "request": request,
+                        "response": resp,
+                    },
+                )
+                await response.eof()
             else:
                 if not hasattr(handler, "is_websocket"):
                     raise ServerError(
@@ -1158,6 +1186,11 @@ class Sanic(BaseSanic, metaclass=TouchUpMeta):
             register_sys_signals=register_sys_signals,
         )
 
+        if self.config.USE_UVLOOP is True or (
+            self.config.USE_UVLOOP is _default and not OS_IS_WINDOWS
+        ):
+            try_use_uvloop()
+
         try:
             self.is_running = True
             self.is_stopping = False
@@ -1185,6 +1218,7 @@ class Sanic(BaseSanic, metaclass=TouchUpMeta):
         This kills the Sanic
         """
         if not self.is_stopping:
+            self.shutdown_tasks(timeout=0)
             self.is_stopping = True
             get_event_loop().stop()
 
@@ -1254,12 +1288,13 @@ class Sanic(BaseSanic, metaclass=TouchUpMeta):
                 WebSocketProtocol if self.websocket_enabled else HttpProtocol
             )
 
-        # if access_log is passed explicitly change config.ACCESS_LOG
-        if access_log is not None:
-            self.config.ACCESS_LOG = access_log
-
-        if noisy_exceptions is not None:
-            self.config.NOISY_EXCEPTIONS = noisy_exceptions
+        # Set explicitly passed configuration values
+        for attribute, value in {
+            "ACCESS_LOG": access_log,
+            "NOISY_EXCEPTIONS": noisy_exceptions,
+        }.items():
+            if value is not None:
+                setattr(self.config, attribute, value)
 
         server_settings = self._helper(
             host=host,
@@ -1274,6 +1309,14 @@ class Sanic(BaseSanic, metaclass=TouchUpMeta):
             run_async=return_asyncio_server,
         )
 
+        if self.config.USE_UVLOOP is not _default:
+            error_logger.warning(
+                "You are trying to change the uvloop configuration, but "
+                "this is only effective when using the run(...) method. "
+                "When using the create_server(...) method Sanic will use "
+                "the already existing loop."
+            )
+
         main_start = server_settings.pop("main_start", None)
         main_stop = server_settings.pop("main_stop", None)
         if main_start or main_stop:
@@ -1392,26 +1435,15 @@ class Sanic(BaseSanic, metaclass=TouchUpMeta):
                 "#proxy-configuration"
             )
 
+        ssl = process_to_context(ssl)
+
         self.debug = debug
         self.state.host = host
         self.state.port = port
         self.state.workers = workers
-
-        # Serve
-        serve_location = ""
-        proto = "http"
-        if ssl is not None:
-            proto = "https"
-        if unix:
-            serve_location = f"{unix} {proto}://..."
-        elif sock:
-            serve_location = f"{sock.getsockname()} {proto}://..."
-        elif host and port:
-            # colon(:) is legal for a host only in an ipv6 address
-            display_host = f"[{host}]" if ":" in host else host
-            serve_location = f"{proto}://{display_host}:{port}"
-
-        ssl = process_to_context(ssl)
+        self.state.ssl = ssl
+        self.state.unix = unix
+        self.state.sock = sock
 
         server_settings = {
             "protocol": protocol,
@@ -1427,7 +1459,7 @@ class Sanic(BaseSanic, metaclass=TouchUpMeta):
             "backlog": backlog,
         }
 
-        self.motd(serve_location)
+        self.motd(self.serve_location)
 
         if sys.stdout.isatty() and not self.state.is_debug:
             error_logger.warning(
@@ -1453,12 +1485,55 @@ class Sanic(BaseSanic, metaclass=TouchUpMeta):
 
         return server_settings
 
+    @property
+    def serve_location(self) -> str:
+        serve_location = ""
+        proto = "http"
+        if self.state.ssl is not None:
+            proto = "https"
+        if self.state.unix:
+            serve_location = f"{self.state.unix} {proto}://..."
+        elif self.state.sock:
+            serve_location = f"{self.state.sock.getsockname()} {proto}://..."
+        elif self.state.host and self.state.port:
+            # colon(:) is legal for a host only in an ipv6 address
+            display_host = (
+                f"[{self.state.host}]"
+                if ":" in self.state.host
+                else self.state.host
+            )
+            serve_location = f"{proto}://{display_host}:{self.state.port}"
+
+        return serve_location
+
     def _build_endpoint_name(self, *parts):
         parts = [self.name, *parts]
         return ".".join(parts)
 
     @classmethod
-    def _prep_task(cls, task, app, loop):
+    def _cancel_websocket_tasks(cls, app, loop):
+        for task in app.websocket_tasks:
+            task.cancel()
+
+    @staticmethod
+    async def _listener(
+        app: Sanic, loop: AbstractEventLoop, listener: ListenerType
+    ):
+        maybe_coro = listener(app, loop)
+        if maybe_coro and isawaitable(maybe_coro):
+            await maybe_coro
+
+    # -------------------------------------------------------------------- #
+    # Task management
+    # -------------------------------------------------------------------- #
+
+    @classmethod
+    def _prep_task(
+        cls,
+        task,
+        app,
+        loop,
+    ):
         if callable(task):
             try:
                 task = task(app)
@@ -1468,14 +1543,31 @@ class Sanic(BaseSanic, metaclass=TouchUpMeta):
         return task
 
     @classmethod
-    def _loop_add_task(cls, task, app, loop):
-        prepped = cls._prep_task(task, app, loop)
-        loop.create_task(prepped)
+    def _loop_add_task(
+        cls,
+        task,
+        app,
+        loop,
+        *,
+        name: Optional[str] = None,
+        register: bool = True,
+    ) -> Task:
+        if not isinstance(task, Future):
+            prepped = cls._prep_task(task, app, loop)
+            if sys.version_info < (3, 8):
+                if name:
+                    error_logger.warning(
+                        "Cannot set a name for a task when using Python 3.7. "
+                        "Your task will be created without a name."
+                    )
+                task = loop.create_task(prepped)
+            else:
+                task = loop.create_task(prepped, name=name)
 
-    @classmethod
-    def _cancel_websocket_tasks(cls, app, loop):
-        for task in app.websocket_tasks:
-            task.cancel()
+        if name and register and sys.version_info > (3, 7):
+            app._task_registry[name] = task
+
+        return task
 
     @staticmethod
     async def dispatch_delayed_tasks(app, loop):
@@ -1488,13 +1580,142 @@ class Sanic(BaseSanic, metaclass=TouchUpMeta):
         prepped = app._prep_task(task, app, loop)
         await prepped
 
-    @staticmethod
-    async def _listener(
-        app: Sanic, loop: AbstractEventLoop, listener: ListenerType
+    def add_task(
+        self,
+        task: Union[Future[Any], Coroutine[Any, Any, Any], Awaitable[Any]],
+        *,
+        name: Optional[str] = None,
+        register: bool = True,
+    ) -> Optional[Task]:
+        """
+        Schedule a task to run later, after the loop has started.
+        Different from asyncio.ensure_future in that it does not
+        also return a future, and the actual ensure_future call
+        is delayed until before server start.
+
+        `See user guide re: background tasks
+        <https://sanicframework.org/guide/basics/tasks.html#background-tasks>`__
+
+        :param task: future, couroutine or awaitable
+        """
+        if name and sys.version_info == (3, 7):
+            name = None
+            error_logger.warning(
+                "Cannot set a name for a task when using Python 3.7. Your "
+                "task will be created without a name."
+            )
+        try:
+            loop = self.loop  # Will raise SanicError if loop is not started
+            return self._loop_add_task(
+                task, self, loop, name=name, register=register
+            )
+        except SanicException:
+            task_name = f"sanic.delayed_task.{hash(task)}"
+            if not self._delayed_tasks:
+                self.after_server_start(partial(self.dispatch_delayed_tasks))
+
+            if name:
+                raise RuntimeError(
+                    "Cannot name task outside of a running application"
+                )
+
+            self.signal(task_name)(partial(self.run_delayed_task, task=task))
+            self._delayed_tasks.append(task_name)
+            return None
+
+    def get_task(
+        self, name: str, *, raise_exception: bool = True
+    ) -> Optional[Task]:
+        if sys.version_info < (3, 8):
+            error_logger.warning(
+                "This feature (get_task) is only supported on using "
+                "Python 3.8+."
+            )
+            return
+        try:
+            return self._task_registry[name]
+        except KeyError:
+            if raise_exception:
+                raise SanicException(
+                    f'Registered task named "{name}" not found.'
+                )
+            return None
+
+    async def cancel_task(
+        self,
+        name: str,
+        msg: Optional[str] = None,
+        *,
+        raise_exception: bool = True,
+    ) -> None:
+        if sys.version_info < (3, 8):
+            error_logger.warning(
+                "This feature (cancel_task) is only supported on using "
+                "Python 3.8+."
+            )
+            return
+        task = self.get_task(name, raise_exception=raise_exception)
+        if task and not task.cancelled():
+            args: Tuple[str, ...] = ()
+            if msg:
+                if sys.version_info >= (3, 9):
+                    args = (msg,)
+                else:
+                    raise RuntimeError(
+                        "Cancelling a task with a message is only supported "
+                        "on Python 3.9+."
+                    )
+            task.cancel(*args)
+            try:
+                await task
+            except CancelledError:
+                ...
+
+    def purge_tasks(self):
+        if sys.version_info < (3, 8):
+            error_logger.warning(
+                "This feature (purge_tasks) is only supported on using "
+                "Python 3.8+."
+            )
+            return
+        for task in self.tasks:
+            if task.done() or task.cancelled():
+                name = task.get_name()
+                self._task_registry[name] = None
+
+        self._task_registry = {
+            k: v for k, v in self._task_registry.items() if v is not None
+        }
+
+    def shutdown_tasks(
+        self, timeout: Optional[float] = None, increment: float = 0.1
     ):
-        maybe_coro = listener(app, loop)
-        if maybe_coro and isawaitable(maybe_coro):
-            await maybe_coro
+        if sys.version_info < (3, 8):
+            error_logger.warning(
+                "This feature (shutdown_tasks) is only supported on using "
+                "Python 3.8+."
+            )
+            return
+        for task in self.tasks:
+            task.cancel()
+
+        if timeout is None:
+            timeout = self.config.GRACEFUL_SHUTDOWN_TIMEOUT
+
+        while len(self._task_registry) and timeout:
+            self.loop.run_until_complete(asyncio.sleep(increment))
+            self.purge_tasks()
+            timeout -= increment
+
+    @property
+    def tasks(self):
+        if sys.version_info < (3, 8):
+            error_logger.warning(
+                "This feature (tasks) is only supported on using "
+                "Python 3.8+."
+            )
+            return
+        return iter(self._task_registry.values())
 
     # -------------------------------------------------------------------- #
     # ASGI
@@ -1507,7 +1728,8 @@ class Sanic(BaseSanic, metaclass=TouchUpMeta):
         details: https://asgi.readthedocs.io/en/latest
         """
         self.asgi = True
-        self.motd("")
+        if scope["type"] == "lifespan":
+            self.motd("")
         self._asgi_app = await ASGIApp.create(self, scope, receive, send)
         asgi_app = self._asgi_app
         await asgi_app()
@@ -1612,11 +1834,8 @@ class Sanic(BaseSanic, metaclass=TouchUpMeta):
                 display["auto-reload"] = reload_display
 
             packages = []
-            for package_name, module_name in {
-                "sanic-routing": "sanic_routing",
-                "sanic-testing": "sanic_testing",
-                "sanic-ext": "sanic_ext",
-            }.items():
+            for package_name in SANIC_PACKAGES:
+                module_name = package_name.replace("-", "_")
                 try:
                     module = import_module(module_name)
                     packages.append(f"{package_name}=={module.__version__}")
@@ -1636,6 +1855,41 @@ class Sanic(BaseSanic, metaclass=TouchUpMeta):
             )
             MOTD.output(logo, serve_location, display, extra)
 
+    @property
+    def ext(self) -> Extend:
+        if not hasattr(self, "_ext"):
+            setup_ext(self, fail=True)
+
+        if not hasattr(self, "_ext"):
+            raise RuntimeError(
+                "Sanic Extensions is not installed. You can add it to your "
+                "environment using:\n$ pip install sanic[ext]\nor\n$ pip "
+                "install sanic-ext"
+            )
+        return self._ext  # type: ignore
+
+    def extend(
+        self,
+        *,
+        extensions: Optional[List[Type[Extension]]] = None,
+        built_in_extensions: bool = True,
+        config: Optional[Union[Config, Dict[str, Any]]] = None,
+        **kwargs,
+    ) -> Extend:
+        if hasattr(self, "_ext"):
+            raise RuntimeError(
+                "Cannot extend Sanic after Sanic Extensions has been setup."
+            )
+        setup_ext(
+            self,
+            extensions=extensions,
+            built_in_extensions=built_in_extensions,
+            config=config,
+            fail=True,
+            **kwargs,
+        )
+        return self.ext
+
     # -------------------------------------------------------------------- #
     # Class methods
     # -------------------------------------------------------------------- #
@@ -1697,12 +1951,33 @@ class Sanic(BaseSanic, metaclass=TouchUpMeta):
 
     async def _startup(self):
         self._future_registry.clear()
+
+        # Startup Sanic Extensions
+        if not hasattr(self, "_ext"):
+            setup_ext(self)
+        if hasattr(self, "_ext"):
+            self.ext._display()
+
+        # Setup routers
         self.signalize()
         self.finalize()
-        ErrorHandler.finalize(
-            self.error_handler, fallback=self.config.FALLBACK_ERROR_FORMAT
-        )
+
+        # TODO: Replace in v22.6 to check against apps in app registry
+        if (
+            self.__class__._uvloop_setting is not None
+            and self.__class__._uvloop_setting != self.config.USE_UVLOOP
+        ):
+            error_logger.warning(
+                "It looks like you're running several apps with different "
+                "uvloop settings. This is not supported and may lead to "
+                "unintended behaviour."
+            )
+        self.__class__._uvloop_setting = self.config.USE_UVLOOP
+
+        # Startup time optimizations
+        ErrorHandler.finalize(self.error_handler, config=self.config)
         TouchUp.run(self)
+
         self.state.is_started = True
 
     async def _server_event(

sanic/application/ext.py

@@ -0,0 +1,39 @@
+from __future__ import annotations
+
+from contextlib import suppress
+from importlib import import_module
+from typing import TYPE_CHECKING
+
+
+if TYPE_CHECKING:  # no cov
+    from sanic import Sanic
+
+    try:
+        from sanic_ext import Extend  # type: ignore
+    except ImportError:
+        ...
+
+
+def setup_ext(app: Sanic, *, fail: bool = False, **kwargs):
+    if not app.config.AUTO_EXTEND:
+        return
+
+    sanic_ext = None
+    with suppress(ModuleNotFoundError):
+        sanic_ext = import_module("sanic_ext")
+
+    if not sanic_ext:
+        if fail:
+            raise RuntimeError(
+                "Sanic Extensions is not installed. You can add it to your "
+                "environment using:\n$ pip install sanic[ext]\nor\n$ pip "
+                "install sanic-ext"
+            )
+
+        return
+
+    if not getattr(app, "_ext", None):
+        Ext: Extend = getattr(sanic_ext, "Extend")
+        app._ext = Ext(app, **kwargs)
+
+        return app.ext

sanic/application/motd.py

@@ -41,9 +41,6 @@ class MOTD(ABC):
 
 
 class MOTDBasic(MOTD):
-    def __init__(self, *args, **kwargs) -> None:
-        super().__init__(*args, **kwargs)
-
     def display(self):
         if self.logo:
             logger.debug(self.logo)

sanic/application/state.py

@@ -5,7 +5,9 @@ import logging
 from dataclasses import dataclass, field
 from enum import Enum, auto
 from pathlib import Path
-from typing import TYPE_CHECKING, Any, Set, Union
+from socket import socket
+from ssl import SSLContext
+from typing import TYPE_CHECKING, Any, Optional, Set, Union
 
 from sanic.log import logger
 
@@ -37,8 +39,11 @@ class ApplicationState:
     coffee: bool = field(default=False)
     fast: bool = field(default=False)
     host: str = field(default="")
-    mode: Mode = field(default=Mode.PRODUCTION)
     port: int = field(default=0)
+    ssl: Optional[SSLContext] = field(default=None)
+    sock: Optional[socket] = field(default=None)
+    unix: Optional[str] = field(default=None)
+    mode: Mode = field(default=Mode.PRODUCTION)
     reload_dirs: Set[Path] = field(default_factory=set)
     server: Server = field(default=Server.SANIC)
     is_running: bool = field(default=False)

sanic/asgi.py

@@ -7,6 +7,7 @@ import sanic.app  # noqa
 
 from sanic.compat import Header
 from sanic.exceptions import ServerError
+from sanic.helpers import _default
 from sanic.http import Stage
 from sanic.models.asgi import ASGIReceive, ASGIScope, ASGISend, MockTransport
 from sanic.request import Request
@@ -53,6 +54,13 @@ class Lifespan:
         await self.asgi_app.sanic_app._server_event("init", "before")
         await self.asgi_app.sanic_app._server_event("init", "after")
 
+        if self.asgi_app.sanic_app.config.USE_UVLOOP is not _default:
+            warnings.warn(
+                "You have set the USE_UVLOOP configuration option, but Sanic "
+                "cannot control the event loop when running in ASGI mode."
+                "This option will be ignored."
+            )
+
     async def shutdown(self) -> None:
         """
         Gather the listeners to fire on server stop.

sanic/base/meta.py

@@ -0,0 +1,6 @@
+class SanicMeta(type):
+    @classmethod
+    def __prepare__(metaclass, name, bases, **kwds):
+        cls = super().__prepare__(metaclass, name, bases, **kwds)
+        cls["__slots__"] = ()
+        return cls

sanic/base/root.py

@@ -1,8 +1,8 @@
 import re
 
-from typing import Any, Tuple
-from warnings import warn
+from typing import Any
 
+from sanic.base.meta import SanicMeta
 from sanic.exceptions import SanicException
 from sanic.mixins.exceptions import ExceptionMixin
 from sanic.mixins.listeners import ListenerMixin
@@ -20,8 +20,9 @@ class BaseSanic(
     ListenerMixin,
     ExceptionMixin,
     SignalMixin,
+    metaclass=SanicMeta,
 ):
-    __fake_slots__: Tuple[str, ...]
+    __slots__ = ("name",)
 
     def __init__(self, name: str = None, *args: Any, **kwargs: Any) -> None:
         class_name = self.__class__.__name__
@@ -33,11 +34,10 @@ class BaseSanic(
             )
 
         if not VALID_NAME.match(name):
-            warn(
-                f"{class_name} instance named '{name}' uses a format that is"
-                f"deprecated. Starting in version 21.12, {class_name} objects "
-                "must be named only using alphanumeric characters, _, or -.",
-                DeprecationWarning,
+            raise SanicException(
+                f"{class_name} instance named '{name}' uses an invalid "
+                "format. Names must begin with a character and may only "
+                "contain alphanumeric characters, _, or -."
             )
 
         self.name = name
@@ -52,15 +52,12 @@ class BaseSanic(
         return f'{self.__class__.__name__}(name="{self.name}")'
 
     def __setattr__(self, name: str, value: Any) -> None:
-        # This is a temporary compat layer so we can raise a warning until
-        # setting attributes on the app instance can be removed and deprecated
-        # with a proper implementation of __slots__
-        if name not in self.__fake_slots__:
-            warn(
+        try:
+            super().__setattr__(name, value)
+        except AttributeError as e:
+            raise AttributeError(
                 f"Setting variables on {self.__class__.__name__} instances is "
-                "deprecated and will be removed in version 21.12. You should "
-                f"change your {self.__class__.__name__} instance to use "
+                "not allowed. You should change your "
+                f"{self.__class__.__name__} instance to use "
                 f"instance.ctx.{name} instead.",
-                DeprecationWarning,
-            )
-        super().__setattr__(name, value)
+            ) from e

sanic/blueprint_group.py

@@ -5,7 +5,7 @@ from functools import partial
 from typing import TYPE_CHECKING, List, Optional, Union
 
 
-if TYPE_CHECKING:
+if TYPE_CHECKING:  # no cov
     from sanic.blueprints import Blueprint
 
 

sanic/blueprints.py

@@ -24,7 +24,7 @@ from typing import (
 from sanic_routing.exceptions import NotFound  # type: ignore
 from sanic_routing.route import Route  # type: ignore
 
-from sanic.base import BaseSanic
+from sanic.base.root import BaseSanic
 from sanic.blueprint_group import BlueprintGroup
 from sanic.exceptions import SanicException
 from sanic.helpers import Default, _default
@@ -36,8 +36,8 @@ from sanic.models.handler_types import (
 )
 
 
-if TYPE_CHECKING:
-    from sanic import Sanic  # noqa
+if TYPE_CHECKING:  # no cov
+    from sanic import Sanic
 
 
 def lazy(func, as_decorator=True):
@@ -85,7 +85,7 @@ class Blueprint(BaseSanic):
         trailing */*
     """
 
-    __fake_slots__ = (
+    __slots__ = (
         "_apps",
         "_future_routes",
         "_future_statics",
@@ -98,7 +98,6 @@ class Blueprint(BaseSanic):
         "host",
         "listeners",
         "middlewares",
-        "name",
         "routes",
         "statics",
         "strict_slashes",
@@ -348,6 +347,7 @@ class Blueprint(BaseSanic):
                 future.static,
                 version_prefix,
                 error_format,
+                future.route_context,
             )
 
             if (self, apply_route) in app._future_registry:
@@ -400,8 +400,9 @@ class Blueprint(BaseSanic):
         for future in self._future_signals:
             if (self, future) in app._future_registry:
                 continue
-            future.condition.update({"blueprint": self.name})
-            app._apply_signal(future)
+            future.condition.update({"__blueprint__": self.name})
+            # Force exclusive to be False
+            app._apply_signal(tuple((*future[:-1], False)))
 
         self.routes += [route for route in routes if isinstance(route, Route)]
         self.websocket_routes += [
@@ -426,7 +427,7 @@ class Blueprint(BaseSanic):
 
     async def dispatch(self, *args, **kwargs):
         condition = kwargs.pop("condition", {})
-        condition.update({"blueprint": self.name})
+        condition.update({"__blueprint__": self.name})
         kwargs["condition"] = condition
         await asyncio.gather(
             *[app.dispatch(*args, **kwargs) for app in self.apps]

sanic/compat.py

@@ -8,6 +8,14 @@ from multidict import CIMultiDict  # type: ignore
 
 
 OS_IS_WINDOWS = os.name == "nt"
+UVLOOP_INSTALLED = False
+
+try:
+    import uvloop  # type: ignore # noqa
+
+    UVLOOP_INSTALLED = True
+except ImportError:
+    pass
 
 
 def enable_windows_color_support():

sanic/config.py

@@ -1,28 +1,26 @@
 from __future__ import annotations
 
-from inspect import isclass
+from inspect import getmembers, isclass, isdatadescriptor
 from os import environ
 from pathlib import Path
-from typing import TYPE_CHECKING, Any, Dict, Optional, Union
-from warnings import warn
+from typing import Any, Callable, Dict, Optional, Sequence, Union
 
-from sanic.errorpages import check_error_format
+from sanic.errorpages import DEFAULT_FORMAT, check_error_format
+from sanic.helpers import Default, _default
 from sanic.http import Http
+from sanic.log import deprecation, error_logger
 from sanic.utils import load_module_from_file_location, str_to_bool
 
 
-if TYPE_CHECKING:  # no cov
-    from sanic import Sanic
-
-
 SANIC_PREFIX = "SANIC_"
 
 
 DEFAULT_CONFIG = {
+    "_FALLBACK_ERROR_FORMAT": _default,
     "ACCESS_LOG": True,
+    "AUTO_EXTEND": True,
     "AUTO_RELOAD": False,
     "EVENT_AUTOREGISTER": False,
-    "FALLBACK_ERROR_FORMAT": "auto",
     "FORWARDED_FOR_HEADER": "X-Forwarded-For",
     "FORWARDED_SECRET": None,
     "GRACEFUL_SHUTDOWN_TIMEOUT": 15.0,  # 15 sec
@@ -40,17 +38,31 @@ DEFAULT_CONFIG = {
     "REQUEST_MAX_SIZE": 100000000,  # 100 megabytes
     "REQUEST_TIMEOUT": 60,  # 60 seconds
     "RESPONSE_TIMEOUT": 60,  # 60 seconds
+    "USE_UVLOOP": _default,
     "WEBSOCKET_MAX_SIZE": 2 ** 20,  # 1 megabyte
     "WEBSOCKET_PING_INTERVAL": 20,
     "WEBSOCKET_PING_TIMEOUT": 20,
 }
 
+# These values will be removed from the Config object in v22.6 and moved
+# to the application state
+DEPRECATED_CONFIG = ("SERVER_RUNNING", "RELOADER_PROCESS", "RELOADED_FILES")
 
-class Config(dict):
+
+class DescriptorMeta(type):
+    def __init__(cls, *_):
+        cls.__setters__ = {name for name, _ in getmembers(cls, cls._is_setter)}
+
+    @staticmethod
+    def _is_setter(member: object):
+        return isdatadescriptor(member) and hasattr(member, "setter")
+
+
+class Config(dict, metaclass=DescriptorMeta):
     ACCESS_LOG: bool
+    AUTO_EXTEND: bool
     AUTO_RELOAD: bool
     EVENT_AUTOREGISTER: bool
-    FALLBACK_ERROR_FORMAT: str
     FORWARDED_FOR_HEADER: str
     FORWARDED_SECRET: Optional[str]
     GRACEFUL_SHUTDOWN_TIMEOUT: float
@@ -69,6 +81,7 @@ class Config(dict):
     REQUEST_TIMEOUT: int
     RESPONSE_TIMEOUT: int
     SERVER_NAME: str
+    USE_UVLOOP: Union[Default, bool]
     WEBSOCKET_MAX_SIZE: int
     WEBSOCKET_PING_INTERVAL: int
     WEBSOCKET_PING_TIMEOUT: int
@@ -76,33 +89,27 @@ class Config(dict):
     def __init__(
         self,
         defaults: Dict[str, Union[str, bool, int, float, None]] = None,
-        load_env: Optional[Union[bool, str]] = True,
         env_prefix: Optional[str] = SANIC_PREFIX,
         keep_alive: Optional[bool] = None,
         *,
-        app: Optional[Sanic] = None,
+        converters: Optional[Sequence[Callable[[str], Any]]] = None,
     ):
         defaults = defaults or {}
         super().__init__({**DEFAULT_CONFIG, **defaults})
 
-        self._app = app
+        self._converters = [str, str_to_bool, float, int]
         self._LOGO = ""
 
+        if converters:
+            for converter in converters:
+                self.register_type(converter)
+
         if keep_alive is not None:
             self.KEEP_ALIVE = keep_alive
 
         if env_prefix != SANIC_PREFIX:
             if env_prefix:
                 self.load_environment_vars(env_prefix)
-        elif load_env is not True:
-            if load_env:
-                self.load_environment_vars(prefix=load_env)
-            warn(
-                "Use of load_env is deprecated and will be removed in "
-                "21.12. Modify the configuration prefix by passing "
-                "env_prefix instead.",
-                DeprecationWarning,
-            )
         else:
             self.load_environment_vars(SANIC_PREFIX)
 
@@ -123,9 +130,21 @@ class Config(dict):
         self.update({attr: value})
 
     def update(self, *other, **kwargs) -> None:
-        other_mapping = {k: v for item in other for k, v in dict(item).items()}
-        super().update(*other, **kwargs)
-        for attr, value in {**other_mapping, **kwargs}.items():
+        kwargs.update({k: v for item in other for k, v in dict(item).items()})
+        setters: Dict[str, Any] = {
+            k: kwargs.pop(k)
+            for k in {**kwargs}.keys()
+            if k in self.__class__.__setters__
+        }
+
+        for key, value in setters.items():
+            try:
+                super().__setattr__(key, value)
+            except AttributeError:
+                ...
+
+        super().update(**kwargs)
+        for attr, value in {**setters, **kwargs}.items():
             self._post_set(attr, value)
 
     def _post_set(self, attr, value) -> None:
@@ -136,32 +155,37 @@ class Config(dict):
                 "REQUEST_MAX_SIZE",
             ):
                 self._configure_header_size()
-            elif attr == "FALLBACK_ERROR_FORMAT":
-                self._check_error_format()
-                if self.app and value != self.app.error_handler.fallback:
-                    if self.app.error_handler.fallback != "auto":
-                        warn(
-                            "Overriding non-default ErrorHandler fallback "
-                            "value. Changing from "
-                            f"{self.app.error_handler.fallback} to {value}."
-                        )
-                    self.app.error_handler.fallback = value
             elif attr == "LOGO":
                 self._LOGO = value
-                warn(
+                deprecation(
                     "Setting the config.LOGO is deprecated and will no longer "
                     "be supported starting in v22.6.",
-                    DeprecationWarning,
+                    22.6,
                 )
 
-    @property
-    def app(self):
-        return self._app
-
     @property
     def LOGO(self):
         return self._LOGO
 
+    @property
+    def FALLBACK_ERROR_FORMAT(self) -> str:
+        if self._FALLBACK_ERROR_FORMAT is _default:
+            return DEFAULT_FORMAT
+        return self._FALLBACK_ERROR_FORMAT
+
+    @FALLBACK_ERROR_FORMAT.setter
+    def FALLBACK_ERROR_FORMAT(self, value):
+        self._check_error_format(value)
+        if (
+            self._FALLBACK_ERROR_FORMAT is not _default
+            and value != self._FALLBACK_ERROR_FORMAT
+        ):
+            error_logger.warning(
+                "Setting config.FALLBACK_ERROR_FORMAT on an already "
+                "configured value may have unintended consequences."
+            )
+        self._FALLBACK_ERROR_FORMAT = value
+
     def _configure_header_size(self):
         Http.set_header_max_size(
             self.REQUEST_MAX_HEADER_SIZE,
@@ -169,8 +193,8 @@ class Config(dict):
             self.REQUEST_MAX_SIZE,
         )
 
-    def _check_error_format(self):
-        check_error_format(self.FALLBACK_ERROR_FORMAT)
+    def _check_error_format(self, format: Optional[str] = None):
+        check_error_format(format or self.FALLBACK_ERROR_FORMAT)
 
     def load_environment_vars(self, prefix=SANIC_PREFIX):
         """
@@ -184,7 +208,23 @@ class Config(dict):
         - ``float``
         - ``bool``
 
-        Anything else will be imported as a ``str``.
+        Anything else will be imported as a ``str``. If you would like to add
+        additional types to this list, you can use
+        :meth:`sanic.config.Config.register_type`. Just make sure that they
+        are registered before you instantiate your application.
+
+        .. code-block:: python
+
+            class Foo:
+                def __init__(self, name) -> None:
+                    self.name = name
+
+
+            config = Config(converters=[Foo])
+            app = Sanic(__name__, config=config)
+
+        `See user guide re: config
+        <https://sanicframework.org/guide/deployment/configuration.html>`__
         """
         for key, value in environ.items():
             if not key.startswith(prefix):
@@ -192,7 +232,7 @@ class Config(dict):
 
             _, config_key = key.split(prefix, 1)
 
-            for converter in (int, float, str_to_bool, str):
+            for converter in reversed(self._converters):
                 try:
                     self[config_key] = converter(value)
                     break
@@ -267,3 +307,17 @@ class Config(dict):
         self.update(config)
 
     load = update_config
+
+    def register_type(self, converter: Callable[[str], Any]) -> None:
+        """
+        Allows for adding custom function to cast from a string value to any
+        other type. The function should raise ValueError if it is not the
+        correct type.
+        """
+        if converter in self._converters:
+            error_logger.warning(
+                f"Configuration value converter '{converter.__name__}' has "
+                "already been registered"
+            )
+            return
+        self._converters.append(converter)

sanic/errorpages.py

@@ -34,6 +34,7 @@ except ImportError:  # noqa
     from json import dumps
 
 
+DEFAULT_FORMAT = "auto"
 FALLBACK_TEXT = (
     "The server encountered an internal error and "
     "cannot complete your request."

sanic/exceptions.py

@@ -244,25 +244,3 @@ class InvalidSignal(SanicException):
 class WebsocketClosed(SanicException):
     quiet = True
     message = "Client has closed the websocket connection"
-
-
-def abort(status_code: int, message: Optional[Union[str, bytes]] = None):
-    """
-    Raise an exception based on SanicException. Returns the HTTP response
-    message appropriate for the given status code, unless provided.
-
-    STATUS_CODES from sanic.helpers for the given status code.
-
-    :param status_code: The HTTP status code to return.
-    :param message: The HTTP response body. Defaults to the messages in
-    """
-    import warnings
-
-    warnings.warn(
-        "sanic.exceptions.abort has been marked as deprecated, and will be "
-        "removed in release 21.12.\n To migrate your code, simply replace "
-        "abort(status_code, msg) with raise SanicException(msg, status_code), "
-        "or even better, raise an appropriate SanicException subclass."
-    )
-
-    raise SanicException(message=message, status_code=status_code)

sanic/handlers.py

@@ -1,14 +1,23 @@
-from inspect import signature
-from typing import Dict, List, Optional, Tuple, Type
-from warnings import warn
+from __future__ import annotations
 
-from sanic.errorpages import BaseRenderer, HTMLRenderer, exception_response
+from inspect import signature
+from typing import Dict, List, Optional, Tuple, Type, Union
+
+from sanic.config import Config
+from sanic.errorpages import (
+    DEFAULT_FORMAT,
+    BaseRenderer,
+    HTMLRenderer,
+    exception_response,
+)
 from sanic.exceptions import (
     ContentRangeError,
     HeaderNotFound,
     InvalidRangeType,
+    SanicException,
 )
-from sanic.log import error_logger
+from sanic.helpers import Default, _default
+from sanic.log import deprecation, error_logger
 from sanic.models.handler_types import RouteHandler
 from sanic.response import text
 
@@ -28,24 +37,91 @@ class ErrorHandler:
 
     # Beginning in v22.3, the base renderer will be TextRenderer
     def __init__(
-        self, fallback: str = "auto", base: Type[BaseRenderer] = HTMLRenderer
+        self,
+        fallback: Union[str, Default] = _default,
+        base: Type[BaseRenderer] = HTMLRenderer,
     ):
         self.handlers: List[Tuple[Type[BaseException], RouteHandler]] = []
         self.cached_handlers: Dict[
             Tuple[Type[BaseException], Optional[str]], Optional[RouteHandler]
         ] = {}
         self.debug = False
-        self.fallback = fallback
+        self._fallback = fallback
         self.base = base
 
+        if fallback is not _default:
+            self._warn_fallback_deprecation()
+
+    @property
+    def fallback(self):
+        # This is for backwards compat and can be removed in v22.6
+        if self._fallback is _default:
+            return DEFAULT_FORMAT
+        return self._fallback
+
+    @fallback.setter
+    def fallback(self, value: str):
+        self._warn_fallback_deprecation()
+        if not isinstance(value, str):
+            raise SanicException(
+                f"Cannot set error handler fallback to: value={value}"
+            )
+        self._fallback = value
+
+    @staticmethod
+    def _warn_fallback_deprecation():
+        deprecation(
+            "Setting the ErrorHandler fallback value directly is "
+            "deprecated and no longer supported. This feature will "
+            "be removed in v22.6. Instead, use "
+            "app.config.FALLBACK_ERROR_FORMAT.",
+            22.6,
+        )
+
     @classmethod
-    def finalize(cls, error_handler, fallback: Optional[str] = None):
-        if (
-            fallback
-            and fallback != "auto"
-            and error_handler.fallback == "auto"
-        ):
-            error_handler.fallback = fallback
+    def _get_fallback_value(cls, error_handler: ErrorHandler, config: Config):
+        if error_handler._fallback is not _default:
+            if config._FALLBACK_ERROR_FORMAT is _default:
+                return error_handler.fallback
+
+            error_logger.warning(
+                "Conflicting error fallback values were found in the "
+                "error handler and in the app.config while handling an "
+                "exception. Using the value from app.config."
+            )
+        return config.FALLBACK_ERROR_FORMAT
+
+    @classmethod
+    def finalize(
+        cls,
+        error_handler: ErrorHandler,
+        fallback: Optional[str] = None,
+        config: Optional[Config] = None,
+    ):
+        if fallback:
+            deprecation(
+                "Setting the ErrorHandler fallback value via finalize() "
+                "is deprecated and no longer supported. This feature will "
+                "be removed in v22.6. Instead, use "
+                "app.config.FALLBACK_ERROR_FORMAT.",
+                22.6,
+            )
+
+        if config is None:
+            deprecation(
+                "Starting in v22.3, config will be a required argument "
+                "for ErrorHandler.finalize().",
+                22.3,
+            )
+
+        if fallback and fallback != DEFAULT_FORMAT:
+            if error_handler._fallback is not _default:
+                error_logger.warning(
+                    f"Setting the fallback value to {fallback}. This changes "
+                    "the current non-default value "
+                    f"'{error_handler._fallback}'."
+                )
+            error_handler._fallback = fallback
 
         if not isinstance(error_handler, cls):
             error_logger.warning(
@@ -54,7 +130,7 @@ class ErrorHandler:
 
         sig = signature(error_handler.lookup)
         if len(sig.parameters) == 1:
-            warn(
+            deprecation(
                 "You are using a deprecated error handler. The lookup "
                 "method should accept two positional parameters: "
                 "(exception, route_name: Optional[str]). "
@@ -62,9 +138,10 @@ class ErrorHandler:
                 "specific exceptions will not work properly. Beginning "
                 "in v22.3, the legacy style lookup method will not "
                 "work at all.",
-                DeprecationWarning,
+                22.3,
             )
-            error_handler._lookup = error_handler._legacy_lookup
+            legacy_lookup = error_handler._legacy_lookup
+            error_handler._lookup = legacy_lookup  # type: ignore
 
     def _full_lookup(self, exception, route_name: Optional[str] = None):
         return self.lookup(exception, route_name)
@@ -188,12 +265,13 @@ class ErrorHandler:
         :return:
         """
         self.log(request, exception)
+        fallback = ErrorHandler._get_fallback_value(self, request.app.config)
         return exception_response(
             request,
             exception,
             debug=self.debug,
             base=self.base,
-            fallback=self.fallback,
+            fallback=fallback,
         )
 
     @staticmethod

sanic/http.py

@@ -3,7 +3,7 @@ from __future__ import annotations
 from typing import TYPE_CHECKING, Optional
 
 
-if TYPE_CHECKING:
+if TYPE_CHECKING:  # no cov
     from sanic.request import Request
     from sanic.response import BaseHTTPResponse
 

sanic/log.py

@@ -3,6 +3,7 @@ import sys
 
 from enum import Enum
 from typing import Any, Dict
+from warnings import warn
 
 
 LOGGING_CONFIG_DEFAULTS: Dict[str, Any] = dict(
@@ -78,3 +79,11 @@ access_logger = logging.getLogger("sanic.access")
 """
 Logger used by Sanic for access logging
 """
+
+
+def deprecation(message: str, version: float):
+    version_info = f"[DEPRECATION v{version}] "
+    if sys.stdout.isatty():
+        version_info = f"{Colors.RED}{version_info}"
+        message = f"{Colors.YELLOW}{message}{Colors.END}"
+    warn(version_info + message, DeprecationWarning)

sanic/mixins/exceptions.py

@@ -1,9 +1,10 @@
 from typing import Set
 
+from sanic.base.meta import SanicMeta
 from sanic.models.futures import FutureException
 
 
-class ExceptionMixin:
+class ExceptionMixin(metaclass=SanicMeta):
     def __init__(self, *args, **kwargs) -> None:
         self._future_exceptions: Set[FutureException] = set()
 

sanic/mixins/listeners.py

@@ -2,6 +2,7 @@ from enum import Enum, auto
 from functools import partial
 from typing import List, Optional, Union
 
+from sanic.base.meta import SanicMeta
 from sanic.models.futures import FutureListener
 from sanic.models.handler_types import ListenerType, Sanic
 
@@ -18,7 +19,7 @@ class ListenerEvent(str, Enum):
     MAIN_PROCESS_STOP = auto()
 
 
-class ListenerMixin:
+class ListenerMixin(metaclass=SanicMeta):
     def __init__(self, *args, **kwargs) -> None:
         self._future_listeners: List[FutureListener] = []
 

sanic/mixins/middleware.py

@@ -1,10 +1,11 @@
 from functools import partial
 from typing import List
 
+from sanic.base.meta import SanicMeta
 from sanic.models.futures import FutureMiddleware
 
 
-class MiddlewareMixin:
+class MiddlewareMixin(metaclass=SanicMeta):
     def __init__(self, *args, **kwargs) -> None:
         self._future_middleware: List[FutureMiddleware] = []
 

sanic/mixins/routes.py

@@ -1,4 +1,5 @@
 from ast import NodeVisitor, Return, parse
+from contextlib import suppress
 from functools import partial, wraps
 from inspect import getsource, signature
 from mimetypes import guess_type
@@ -12,6 +13,7 @@ from urllib.parse import unquote
 
 from sanic_routing.route import Route  # type: ignore
 
+from sanic.base.meta import SanicMeta
 from sanic.compat import stat_async
 from sanic.constants import DEFAULT_HTTP_CONTENT_TYPE, HTTP_METHODS
 from sanic.errorpages import RESPONSE_MAPPING
@@ -22,19 +24,27 @@ from sanic.exceptions import (
     InvalidUsage,
 )
 from sanic.handlers import ContentRangeHandler
-from sanic.log import error_logger
+from sanic.log import deprecation, error_logger
 from sanic.models.futures import FutureRoute, FutureStatic
 from sanic.models.handler_types import RouteHandler
 from sanic.response import HTTPResponse, file, file_stream
-from sanic.views import CompositionView
+from sanic.types import HashableDict
 
 
 RouteWrapper = Callable[
     [RouteHandler], Union[RouteHandler, Tuple[Route, RouteHandler]]
 ]
+RESTRICTED_ROUTE_CONTEXT = (
+    "ignore_body",
+    "stream",
+    "hosts",
+    "static",
+    "error_format",
+    "websocket",
+)
 
 
-class RouteMixin:
+class RouteMixin(metaclass=SanicMeta):
     name: str
 
     def __init__(self, *args, **kwargs) -> None:
@@ -65,10 +75,20 @@ class RouteMixin:
         static: bool = False,
         version_prefix: str = "/v",
         error_format: Optional[str] = None,
+        **ctx_kwargs: Any,
     ) -> RouteWrapper:
         """
         Decorate a function to be registered as a route
 
+
+        **Example using context kwargs**
+
+        .. code-block:: python
+
+            @app.route(..., ctx_foo="foobar")
+            async def route_handler(request: Request):
+                assert request.route.ctx.foo == "foobar"
+
         :param uri: path of the URL
         :param methods: list or tuple of methods allowed
         :param host: the host, if required
@@ -80,6 +100,8 @@ class RouteMixin:
             body (eg. GET requests)
         :param version_prefix: URL path that should be before the version
             value; default: ``/v``
+        :param  ctx_kwargs: Keyword arguments that begin with a ctx_* prefix
+            will be appended to the route context (``route.ctx``)
         :return: tuple of routes, decorated function
         """
 
@@ -94,6 +116,8 @@ class RouteMixin:
         if not methods and not websocket:
             methods = frozenset({"GET"})
 
+        route_context = self._build_route_context(ctx_kwargs)
+
         def decorator(handler):
             nonlocal uri
             nonlocal methods
@@ -152,6 +176,7 @@ class RouteMixin:
                 static,
                 version_prefix,
                 error_format,
+                route_context,
             )
 
             self._future_routes.add(route)
@@ -196,6 +221,7 @@ class RouteMixin:
         stream: bool = False,
         version_prefix: str = "/v",
         error_format: Optional[str] = None,
+        **ctx_kwargs,
     ) -> RouteHandler:
         """A helper method to register class instance or
         functions as a handler to the application url
@@ -212,6 +238,8 @@ class RouteMixin:
         :param stream: boolean specifying if the handler is a stream handler
         :param version_prefix: URL path that should be before the version
             value; default: ``/v``
+        :param  ctx_kwargs: Keyword arguments that begin with a ctx_* prefix
+            will be appended to the route context (``route.ctx``)
         :return: function or class instance
         """
         # Handle HTTPMethodView differently
@@ -226,14 +254,6 @@ class RouteMixin:
                     if hasattr(_handler, "is_stream"):
                         stream = True
 
-        # handle composition view differently
-        if isinstance(handler, CompositionView):
-            methods = handler.handlers.keys()
-            for _handler in handler.handlers.values():
-                if hasattr(_handler, "is_stream"):
-                    stream = True
-                    break
-
         if strict_slashes is None:
             strict_slashes = self.strict_slashes
 
@@ -247,6 +267,7 @@ class RouteMixin:
             name=name,
             version_prefix=version_prefix,
             error_format=error_format,
+            **ctx_kwargs,
         )(handler)
         return handler
 
@@ -261,6 +282,7 @@ class RouteMixin:
         ignore_body: bool = True,
         version_prefix: str = "/v",
         error_format: Optional[str] = None,
+        **ctx_kwargs,
     ) -> RouteWrapper:
         """
         Add an API URL under the **GET** *HTTP* method
@@ -273,6 +295,8 @@ class RouteMixin:
         :param name: Unique name that can be used to identify the Route
         :param version_prefix: URL path that should be before the version
             value; default: ``/v``
+        :param  ctx_kwargs: Keyword arguments that begin with a ctx_* prefix
+            will be appended to the route context (``route.ctx``)
         :return: Object decorated with :func:`route` method
         """
         return self.route(
@@ -285,6 +309,7 @@ class RouteMixin:
             ignore_body=ignore_body,
             version_prefix=version_prefix,
             error_format=error_format,
+            **ctx_kwargs,
         )
 
     def post(
@@ -297,6 +322,7 @@ class RouteMixin:
         name: Optional[str] = None,
         version_prefix: str = "/v",
         error_format: Optional[str] = None,
+        **ctx_kwargs,
     ) -> RouteWrapper:
         """
         Add an API URL under the **POST** *HTTP* method
@@ -309,6 +335,8 @@ class RouteMixin:
         :param name: Unique name that can be used to identify the Route
         :param version_prefix: URL path that should be before the version
             value; default: ``/v``
+        :param  ctx_kwargs: Keyword arguments that begin with a ctx_* prefix
+            will be appended to the route context (``route.ctx``)
         :return: Object decorated with :func:`route` method
         """
         return self.route(
@@ -321,6 +349,7 @@ class RouteMixin:
             name=name,
             version_prefix=version_prefix,
             error_format=error_format,
+            **ctx_kwargs,
         )
 
     def put(
@@ -333,6 +362,7 @@ class RouteMixin:
         name: Optional[str] = None,
         version_prefix: str = "/v",
         error_format: Optional[str] = None,
+        **ctx_kwargs,
     ) -> RouteWrapper:
         """
         Add an API URL under the **PUT** *HTTP* method
@@ -345,6 +375,8 @@ class RouteMixin:
         :param name: Unique name that can be used to identify the Route
         :param version_prefix: URL path that should be before the version
             value; default: ``/v``
+        :param  ctx_kwargs: Keyword arguments that begin with a ctx_* prefix
+            will be appended to the route context (``route.ctx``)
         :return: Object decorated with :func:`route` method
         """
         return self.route(
@@ -357,6 +389,7 @@ class RouteMixin:
             name=name,
             version_prefix=version_prefix,
             error_format=error_format,
+            **ctx_kwargs,
         )
 
     def head(
@@ -369,6 +402,7 @@ class RouteMixin:
         ignore_body: bool = True,
         version_prefix: str = "/v",
         error_format: Optional[str] = None,
+        **ctx_kwargs,
     ) -> RouteWrapper:
         """
         Add an API URL under the **HEAD** *HTTP* method
@@ -389,6 +423,8 @@ class RouteMixin:
         :type ignore_body: bool, optional
         :param version_prefix: URL path that should be before the version
             value; default: ``/v``
+        :param  ctx_kwargs: Keyword arguments that begin with a ctx_* prefix
+            will be appended to the route context (``route.ctx``)
         :return: Object decorated with :func:`route` method
         """
         return self.route(
@@ -401,6 +437,7 @@ class RouteMixin:
             ignore_body=ignore_body,
             version_prefix=version_prefix,
             error_format=error_format,
+            **ctx_kwargs,
         )
 
     def options(
@@ -413,6 +450,7 @@ class RouteMixin:
         ignore_body: bool = True,
         version_prefix: str = "/v",
         error_format: Optional[str] = None,
+        **ctx_kwargs,
     ) -> RouteWrapper:
         """
         Add an API URL under the **OPTIONS** *HTTP* method
@@ -433,6 +471,8 @@ class RouteMixin:
         :type ignore_body: bool, optional
         :param version_prefix: URL path that should be before the version
             value; default: ``/v``
+        :param  ctx_kwargs: Keyword arguments that begin with a ctx_* prefix
+            will be appended to the route context (``route.ctx``)
         :return: Object decorated with :func:`route` method
         """
         return self.route(
@@ -445,6 +485,7 @@ class RouteMixin:
             ignore_body=ignore_body,
             version_prefix=version_prefix,
             error_format=error_format,
+            **ctx_kwargs,
         )
 
     def patch(
@@ -457,6 +498,7 @@ class RouteMixin:
         name: Optional[str] = None,
         version_prefix: str = "/v",
         error_format: Optional[str] = None,
+        **ctx_kwargs,
     ) -> RouteWrapper:
         """
         Add an API URL under the **PATCH** *HTTP* method
@@ -479,6 +521,8 @@ class RouteMixin:
         :type ignore_body: bool, optional
         :param version_prefix: URL path that should be before the version
             value; default: ``/v``
+        :param  ctx_kwargs: Keyword arguments that begin with a ctx_* prefix
+            will be appended to the route context (``route.ctx``)
         :return: Object decorated with :func:`route` method
         """
         return self.route(
@@ -491,6 +535,7 @@ class RouteMixin:
             name=name,
             version_prefix=version_prefix,
             error_format=error_format,
+            **ctx_kwargs,
         )
 
     def delete(
@@ -503,6 +548,7 @@ class RouteMixin:
         ignore_body: bool = True,
         version_prefix: str = "/v",
         error_format: Optional[str] = None,
+        **ctx_kwargs,
     ) -> RouteWrapper:
         """
         Add an API URL under the **DELETE** *HTTP* method
@@ -515,6 +561,8 @@ class RouteMixin:
         :param name: Unique name that can be used to identify the Route
         :param version_prefix: URL path that should be before the version
             value; default: ``/v``
+        :param  ctx_kwargs: Keyword arguments that begin with a ctx_* prefix
+            will be appended to the route context (``route.ctx``)
         :return: Object decorated with :func:`route` method
         """
         return self.route(
@@ -527,6 +575,7 @@ class RouteMixin:
             ignore_body=ignore_body,
             version_prefix=version_prefix,
             error_format=error_format,
+            **ctx_kwargs,
         )
 
     def websocket(
@@ -540,6 +589,7 @@ class RouteMixin:
         apply: bool = True,
         version_prefix: str = "/v",
         error_format: Optional[str] = None,
+        **ctx_kwargs,
     ):
         """
         Decorate a function to be registered as a websocket route
@@ -553,6 +603,8 @@ class RouteMixin:
                      be used with :func:`url_for`
         :param version_prefix: URL path that should be before the version
             value; default: ``/v``
+        :param  ctx_kwargs: Keyword arguments that begin with a ctx_* prefix
+            will be appended to the route context (``route.ctx``)
         :return: tuple of routes, decorated function
         """
         return self.route(
@@ -567,6 +619,7 @@ class RouteMixin:
             websocket=True,
             version_prefix=version_prefix,
             error_format=error_format,
+            **ctx_kwargs,
         )
 
     def add_websocket_route(
@@ -580,6 +633,7 @@ class RouteMixin:
         name: Optional[str] = None,
         version_prefix: str = "/v",
         error_format: Optional[str] = None,
+        **ctx_kwargs,
     ):
         """
         A helper method to register a function as a websocket route.
@@ -598,6 +652,8 @@ class RouteMixin:
                 be used with :func:`url_for`
         :param version_prefix: URL path that should be before the version
             value; default: ``/v``
+        :param  ctx_kwargs: Keyword arguments that begin with a ctx_* prefix
+            will be appended to the route context (``route.ctx``)
         :return: Objected decorated by :func:`websocket`
         """
         return self.websocket(
@@ -609,6 +665,7 @@ class RouteMixin:
             name=name,
             version_prefix=version_prefix,
             error_format=error_format,
+            **ctx_kwargs,
         )(handler)
 
     def static(
@@ -918,19 +975,16 @@ class RouteMixin:
 
         return route
 
-    def _determine_error_format(self, handler) -> Optional[str]:
-        if not isinstance(handler, CompositionView):
-            try:
-                src = dedent(getsource(handler))
-                tree = parse(src)
-                http_response_types = self._get_response_types(tree)
+    def _determine_error_format(self, handler) -> str:
+        with suppress(OSError, TypeError):
+            src = dedent(getsource(handler))
+            tree = parse(src)
+            http_response_types = self._get_response_types(tree)
 
-                if len(http_response_types) == 1:
-                    return next(iter(http_response_types))
-            except (OSError, TypeError):
-                ...
+            if len(http_response_types) == 1:
+                return next(iter(http_response_types))
 
-        return None
+        return ""
 
     def _get_response_types(self, node):
         types = set()
@@ -939,7 +993,18 @@ class RouteMixin:
             def visit_Return(self, node: Return) -> Any:
                 nonlocal types
 
-                try:
+                with suppress(AttributeError):
+                    if node.value.func.id == "stream":  # type: ignore
+                        deprecation(
+                            "The sanic.response.stream method has been "
+                            "deprecated and will be removed in v22.6. Please "
+                            "upgrade your application to use the new style "
+                            "streaming pattern. See "
+                            "https://sanicframework.org/en/guide/advanced/"
+                            "streaming.html#response-streaming for more "
+                            "information.",
+                            22.6,
+                        )
                     checks = [node.value.func.id]  # type: ignore
                     if node.value.keywords:  # type: ignore
                         checks += [
@@ -951,9 +1016,32 @@ class RouteMixin:
                     for check in checks:
                         if check in RESPONSE_MAPPING:
                             types.add(RESPONSE_MAPPING[check])
-                except AttributeError:
-                    ...
 
         HttpResponseVisitor().visit(node)
 
         return types
+
+    def _build_route_context(self, raw):
+        ctx_kwargs = {
+            key.replace("ctx_", ""): raw.pop(key)
+            for key in {**raw}.keys()
+            if key.startswith("ctx_")
+        }
+        restricted = [
+            key for key in ctx_kwargs.keys() if key in RESTRICTED_ROUTE_CONTEXT
+        ]
+        if restricted:
+            restricted_arguments = ", ".join(restricted)
+            raise AttributeError(
+                "Cannot use restricted route context: "
+                f"{restricted_arguments}. This limitation is only in place "
+                "until v22.3 when the restricted names will no longer be in"
+                "conflict. See https://github.com/sanic-org/sanic/issues/2303 "
+                "for more information."
+            )
+        if raw:
+            unexpected_arguments = ", ".join(raw.keys())
+            raise TypeError(
+                f"Unexpected keyword arguments: {unexpected_arguments}"
+            )
+        return HashableDict(ctx_kwargs)

sanic/mixins/signals.py

@@ -1,17 +1,14 @@
 from enum import Enum
 from typing import Any, Callable, Dict, Optional, Set, Union
 
+from sanic.base.meta import SanicMeta
 from sanic.models.futures import FutureSignal
 from sanic.models.handler_types import SignalHandler
 from sanic.signals import Signal
+from sanic.types import HashableDict
 
 
-class HashableDict(dict):
-    def __hash__(self):
-        return hash(tuple(sorted(self.items())))
-
-
-class SignalMixin:
+class SignalMixin(metaclass=SanicMeta):
     def __init__(self, *args, **kwargs) -> None:
         self._future_signals: Set[FutureSignal] = set()
 
@@ -24,6 +21,7 @@ class SignalMixin:
         *,
         apply: bool = True,
         condition: Dict[str, Any] = None,
+        exclusive: bool = True,
     ) -> Callable[[SignalHandler], SignalHandler]:
         """
         For creating a signal handler, used similar to a route handler:
@@ -36,17 +34,22 @@ class SignalMixin:
 
         :param event: Representation of the event in ``one.two.three`` form
         :type event: str
-        :param apply: For lazy evaluation, defaults to True
+        :param apply: For lazy evaluation, defaults to ``True``
         :type apply: bool, optional
         :param condition: For use with the ``condition`` argument in dispatch
-            filtering, defaults to None
+            filtering, defaults to ``None``
+        :param exclusive: When ``True``, the signal can only be dispatched
+            when the condition has been met. When ``False``, the signal can
+            be dispatched either with or without it. *THIS IS INAPPLICABLE TO
+            BLUEPRINT SIGNALS. THEY ARE ALWAYS NON-EXCLUSIVE*, defaults
+            to ``True``
         :type condition: Dict[str, Any], optional
         """
         event_value = str(event.value) if isinstance(event, Enum) else event
 
         def decorator(handler: SignalHandler):
             future_signal = FutureSignal(
-                handler, event_value, HashableDict(condition or {})
+                handler, event_value, HashableDict(condition or {}), exclusive
             )
             self._future_signals.add(future_signal)
 
@@ -62,6 +65,7 @@ class SignalMixin:
         handler: Optional[Callable[..., Any]],
         event: str,
         condition: Dict[str, Any] = None,
+        exclusive: bool = True,
     ):
         if not handler:
 
@@ -69,7 +73,9 @@ class SignalMixin:
                 ...
 
             handler = noop
-        self.signal(event=event, condition=condition)(handler)
+        self.signal(event=event, condition=condition, exclusive=exclusive)(
+            handler
+        )
         return handler
 
     def event(self, event: str):

sanic/models/futures.py

@@ -7,6 +7,7 @@ from sanic.models.handler_types import (
     MiddlewareType,
     SignalHandler,
 )
+from sanic.types import HashableDict
 
 
 class FutureRoute(NamedTuple):
@@ -25,6 +26,7 @@ class FutureRoute(NamedTuple):
     static: bool
     version_prefix: str
     error_format: Optional[str]
+    route_context: HashableDict
 
 
 class FutureListener(NamedTuple):
@@ -60,6 +62,7 @@ class FutureSignal(NamedTuple):
     handler: SignalHandler
     event: str
     condition: Optional[Dict[str, str]]
+    exclusive: bool
 
 
 class FutureRegistry(set):

sanic/request.py

@@ -15,7 +15,7 @@ from typing import (
 from sanic_routing.route import Route  # type: ignore
 
 
-if TYPE_CHECKING:
+if TYPE_CHECKING:  # no cov
     from sanic.server import ConnInfo
     from sanic.app import Sanic
 

sanic/response.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 from functools import partial
 from mimetypes import guess_type
 from os import path
@@ -12,10 +14,10 @@ from typing import (
     Iterator,
     Optional,
     Tuple,
+    TypeVar,
     Union,
 )
 from urllib.parse import quote_plus
-from warnings import warn
 
 from sanic.compat import Header, open_async
 from sanic.constants import DEFAULT_HTTP_CONTENT_TYPE
@@ -28,6 +30,10 @@ from sanic.models.protocol_types import HTMLProtocol, Range
 
 if TYPE_CHECKING:
     from sanic.asgi import ASGIApp
+    from sanic.request import Request
+else:
+    Request = TypeVar("Request")
+
 
 try:
     from ujson import dumps as json_dumps
@@ -136,95 +142,6 @@ class BaseHTTPResponse:
         await self.stream.send(data, end_stream=end_stream)
 
 
-StreamingFunction = Callable[[BaseHTTPResponse], Coroutine[Any, Any, None]]
-
-
-class StreamingHTTPResponse(BaseHTTPResponse):
-    """
-    Old style streaming response where you pass a streaming function:
-
-    .. code-block:: python
-
-        async def sample_streaming_fn(response):
-            await response.write("foo")
-            await asyncio.sleep(1)
-            await response.write("bar")
-            await asyncio.sleep(1)
-
-            @app.post("/")
-            async def test(request):
-                return stream(sample_streaming_fn)
-
-    .. warning::
-
-        **Deprecated** and set for removal in v21.12. You can now achieve the
-        same functionality without a callback.
-
-        .. code-block:: python
-
-            @app.post("/")
-            async def test(request):
-                response = await request.respond()
-                await response.send("foo", False)
-                await asyncio.sleep(1)
-                await response.send("bar", False)
-                await asyncio.sleep(1)
-                await response.send("", True)
-                return response
-
-    """
-
-    __slots__ = (
-        "streaming_fn",
-        "status",
-        "content_type",
-        "headers",
-        "_cookies",
-    )
-
-    def __init__(
-        self,
-        streaming_fn: StreamingFunction,
-        status: int = 200,
-        headers: Optional[Union[Header, Dict[str, str]]] = None,
-        content_type: str = "text/plain; charset=utf-8",
-        ignore_deprecation_notice: bool = False,
-    ):
-        if not ignore_deprecation_notice:
-            warn(
-                "Use of the StreamingHTTPResponse is deprecated in v21.6, and "
-                "will be removed in v21.12. Please upgrade your streaming "
-                "response implementation. You can learn more here: "
-                "https://sanicframework.org/en/guide/advanced/streaming.html"
-                "#response-streaming. If you use the builtin stream() or "
-                "file_stream() methods, this upgrade will be be done for you."
-            )
-
-        super().__init__()
-
-        self.content_type = content_type
-        self.streaming_fn = streaming_fn
-        self.status = status
-        self.headers = Header(headers or {})
-        self._cookies = None
-
-    async def write(self, data):
-        """Writes a chunk of data to the streaming response.
-
-        :param data: str or bytes-ish data to be written.
-        """
-        await super().send(self._encode_body(data))
-
-    async def send(self, *args, **kwargs):
-        if self.streaming_fn is not None:
-            await self.streaming_fn(self)
-            self.streaming_fn = None
-        await super().send(*args, **kwargs)
-
-    async def eof(self):
-        raise NotImplementedError
-
-
 class HTTPResponse(BaseHTTPResponse):
     """
     HTTP response to be sent back to the client.
@@ -419,6 +336,109 @@ async def file(
     )
 
 
+def redirect(
+    to: str,
+    headers: Optional[Dict[str, str]] = None,
+    status: int = 302,
+    content_type: str = "text/html; charset=utf-8",
+) -> HTTPResponse:
+    """
+    Abort execution and cause a 302 redirect (by default) by setting a
+    Location header.
+
+    :param to: path or fully qualified URL to redirect to
+    :param headers: optional dict of headers to include in the new request
+    :param status: status code (int) of the new request, defaults to 302
+    :param content_type: the content type (string) of the response
+    """
+    headers = headers or {}
+
+    # URL Quote the URL before redirecting
+    safe_to = quote_plus(to, safe=":/%#?&=@[]!$&'()*+,;")
+
+    # According to RFC 7231, a relative URI is now permitted.
+    headers["Location"] = safe_to
+
+    return HTTPResponse(
+        status=status, headers=headers, content_type=content_type
+    )
+
+
+class ResponseStream:
+    """
+    ResponseStream is a compat layer to bridge the gap after the deprecation
+    of StreamingHTTPResponse. In v22.6 it will be removed when:
+    - stream is removed
+    - file_stream is moved to new style streaming
+    - file and file_stream are combined into a single API
+    """
+
+    __slots__ = (
+        "_cookies",
+        "content_type",
+        "headers",
+        "request",
+        "response",
+        "status",
+        "streaming_fn",
+    )
+
+    def __init__(
+        self,
+        streaming_fn: Callable[
+            [Union[BaseHTTPResponse, ResponseStream]],
+            Coroutine[Any, Any, None],
+        ],
+        status: int = 200,
+        headers: Optional[Union[Header, Dict[str, str]]] = None,
+        content_type: Optional[str] = None,
+    ):
+        self.streaming_fn = streaming_fn
+        self.status = status
+        self.headers = headers or Header()
+        self.content_type = content_type
+        self.request: Optional[Request] = None
+        self._cookies: Optional[CookieJar] = None
+
+    async def write(self, message: str):
+        await self.response.send(message)
+
+    async def stream(self) -> HTTPResponse:
+        if not self.request:
+            raise ServerError("Attempted response to unknown request")
+        self.response = await self.request.respond(
+            headers=self.headers,
+            status=self.status,
+            content_type=self.content_type,
+        )
+        await self.streaming_fn(self)
+        return self.response
+
+    async def eof(self) -> None:
+        await self.response.eof()
+
+    @property
+    def cookies(self) -> CookieJar:
+        if self._cookies is None:
+            self._cookies = CookieJar(self.headers)
+        return self._cookies
+
+    @property
+    def processed_headers(self):
+        return self.response.processed_headers
+
+    @property
+    def body(self):
+        return self.response.body
+
+    def __call__(self, request: Request) -> ResponseStream:
+        self.request = request
+        return self
+
+    def __await__(self):
+        return self.stream().__await__()
+
+
 async def file_stream(
     location: Union[str, PurePath],
     status: int = 200,
@@ -427,7 +447,7 @@ async def file_stream(
     headers: Optional[Dict[str, str]] = None,
     filename: Optional[str] = None,
     _range: Optional[Range] = None,
-) -> StreamingHTTPResponse:
+) -> ResponseStream:
     """Return a streaming response object with file data.
 
     :param location: Location of file on system.
@@ -435,7 +455,6 @@ async def file_stream(
     :param mime_type: Specific mime_type.
     :param headers: Custom Headers.
     :param filename: Override filename.
-    :param chunked: Deprecated
     :param _range:
     """
     headers = headers or {}
@@ -471,23 +490,24 @@ async def file_stream(
                         break
                     await response.write(content)
 
-    return StreamingHTTPResponse(
+    return ResponseStream(
         streaming_fn=_streaming_fn,
         status=status,
         headers=headers,
         content_type=mime_type,
-        ignore_deprecation_notice=True,
     )
 
 
 def stream(
-    streaming_fn: StreamingFunction,
+    streaming_fn: Callable[
+        [Union[BaseHTTPResponse, ResponseStream]], Coroutine[Any, Any, None]
+    ],
     status: int = 200,
     headers: Optional[Dict[str, str]] = None,
     content_type: str = "text/plain; charset=utf-8",
-):
-    """Accepts an coroutine `streaming_fn` which can be used to
-    write chunks to a streaming response. Returns a `StreamingHTTPResponse`.
+) -> ResponseStream:
+    """Accepts a coroutine `streaming_fn` which can be used to
+    write chunks to a streaming response. Returns a `ResponseStream`.
 
     Example usage::
 
@@ -501,42 +521,13 @@ def stream(
 
     :param streaming_fn: A coroutine accepts a response and
         writes content to that response.
-    :param mime_type: Specific mime_type.
+    :param status: HTTP status.
+    :param content_type: Specific content_type.
     :param headers: Custom Headers.
-    :param chunked: Deprecated
     """
-    return StreamingHTTPResponse(
+    return ResponseStream(
         streaming_fn,
         headers=headers,
         content_type=content_type,
         status=status,
-        ignore_deprecation_notice=True,
-    )
-
-
-def redirect(
-    to: str,
-    headers: Optional[Dict[str, str]] = None,
-    status: int = 302,
-    content_type: str = "text/html; charset=utf-8",
-) -> HTTPResponse:
-    """
-    Abort execution and cause a 302 redirect (by default) by setting a
-    Location header.
-
-    :param to: path or fully qualified URL to redirect to
-    :param headers: optional dict of headers to include in the new request
-    :param status: status code (int) of the new request, defaults to 302
-    :param content_type: the content type (string) of the response
-    """
-    headers = headers or {}
-
-    # URL Quote the URL before redirecting
-    safe_to = quote_plus(to, safe=":/%#?&=@[]!$&'()*+,;")
-
-    # According to RFC 7231, a relative URI is now permitted.
-    headers["Location"] = safe_to
-
-    return HTTPResponse(
-        status=status, headers=headers, content_type=content_type
     )

sanic/server/__init__.py

@@ -1,20 +1,10 @@
-import asyncio
-
 from sanic.models.server_types import ConnInfo, Signal
 from sanic.server.async_server import AsyncioServer
+from sanic.server.loop import try_use_uvloop
 from sanic.server.protocols.http_protocol import HttpProtocol
 from sanic.server.runners import serve, serve_multiple, serve_single
 
 
-try:
-    import uvloop  # type: ignore
-
-    if not isinstance(asyncio.get_event_loop_policy(), uvloop.EventLoopPolicy):
-        asyncio.set_event_loop_policy(uvloop.EventLoopPolicy())
-except ImportError:
-    pass
-
-
 __all__ = (
     "AsyncioServer",
     "ConnInfo",
@@ -23,4 +13,5 @@ __all__ = (
     "serve",
     "serve_multiple",
     "serve_single",
+    "try_use_uvloop",
 )

sanic/server/async_server.py

@@ -3,9 +3,9 @@ from __future__ import annotations
 import asyncio
 
 from typing import TYPE_CHECKING
-from warnings import warn
 
 from sanic.exceptions import SanicException
+from sanic.log import deprecation
 
 
 if TYPE_CHECKING:
@@ -37,10 +37,10 @@ class AsyncioServer:
 
     @property
     def init(self):
-        warn(
+        deprecation(
             "AsyncioServer.init has been deprecated and will be removed "
             "in v22.6. Use Sanic.state.is_started instead.",
-            DeprecationWarning,
+            22.6,
         )
         return self.app.state.is_started
 

sanic/server/loop.py

@@ -0,0 +1,49 @@
+import asyncio
+
+from distutils.util import strtobool
+from os import getenv
+
+from sanic.compat import OS_IS_WINDOWS
+from sanic.log import error_logger
+
+
+def try_use_uvloop() -> None:
+    """
+    Use uvloop instead of the default asyncio loop.
+    """
+    if OS_IS_WINDOWS:
+        error_logger.warning(
+            "You are trying to use uvloop, but uvloop is not compatible "
+            "with your system. You can disable uvloop completely by setting "
+            "the 'USE_UVLOOP' configuration value to false, or simply not "
+            "defining it and letting Sanic handle it for you. Sanic will now "
+            "continue to run using the default event loop."
+        )
+        return
+
+    try:
+        import uvloop  # type: ignore
+    except ImportError:
+        error_logger.warning(
+            "You are trying to use uvloop, but uvloop is not "
+            "installed in your system. In order to use uvloop "
+            "you must first install it. Otherwise, you can disable "
+            "uvloop completely by setting the 'USE_UVLOOP' "
+            "configuration value to false. Sanic will now continue "
+            "to run with the default event loop."
+        )
+        return
+
+    uvloop_install_removed = strtobool(getenv("SANIC_NO_UVLOOP", "no"))
+    if uvloop_install_removed:
+        error_logger.info(
+            "You are requesting to run Sanic using uvloop, but the "
+            "install-time 'SANIC_NO_UVLOOP' environment variable (used to "
+            "opt-out of installing uvloop with Sanic) is set to true. If "
+            "you want to prevent Sanic from overriding the event loop policy "
+            "during runtime, set the 'USE_UVLOOP' configuration value to "
+            "false."
+        )
+
+    if not isinstance(asyncio.get_event_loop_policy(), uvloop.EventLoopPolicy):
+        asyncio.set_event_loop_policy(uvloop.EventLoopPolicy())

sanic/server/protocols/websocket_protocol.py

@@ -1,12 +1,11 @@
 from typing import TYPE_CHECKING, Optional, Sequence, cast
-from warnings import warn
 
 from websockets.connection import CLOSED, CLOSING, OPEN
 from websockets.server import ServerConnection
 from websockets.typing import Subprotocol
 
 from sanic.exceptions import ServerError
-from sanic.log import error_logger
+from sanic.log import deprecation, error_logger
 from sanic.server import HttpProtocol
 
 from ..websockets.impl import WebsocketImplProtocol
@@ -17,6 +16,14 @@ if TYPE_CHECKING:
 
 
 class WebSocketProtocol(HttpProtocol):
+    __slots__ = (
+        "websocket",
+        "websocket_timeout",
+        "websocket_max_size",
+        "websocket_ping_interval",
+        "websocket_ping_timeout",
+    )
+
     def __init__(
         self,
         *args,
@@ -35,24 +42,24 @@ class WebSocketProtocol(HttpProtocol):
         self.websocket_max_size = websocket_max_size
         if websocket_max_queue is not None and websocket_max_queue > 0:
             # TODO: Reminder remove this warning in v22.3
-            warn(
+            deprecation(
                 "Websocket no longer uses queueing, so websocket_max_queue"
                 " is no longer required.",
-                DeprecationWarning,
+                22.3,
             )
         if websocket_read_limit is not None and websocket_read_limit > 0:
             # TODO: Reminder remove this warning in v22.3
-            warn(
+            deprecation(
                 "Websocket no longer uses read buffers, so "
                 "websocket_read_limit is not required.",
-                DeprecationWarning,
+                22.3,
             )
         if websocket_write_limit is not None and websocket_write_limit > 0:
             # TODO: Reminder remove this warning in v22.3
-            warn(
+            deprecation(
                 "Websocket no longer uses write buffers, so "
                 "websocket_write_limit is not required.",
-                DeprecationWarning,
+                22.3,
             )
         self.websocket_ping_interval = websocket_ping_interval
         self.websocket_ping_timeout = websocket_ping_timeout

sanic/server/runners.py

@@ -1,5 +1,7 @@
 from __future__ import annotations
 
+import sys
+
 from ssl import SSLContext
 from typing import TYPE_CHECKING, Dict, Optional, Type, Union
 
@@ -19,6 +21,7 @@ from functools import partial
 from signal import SIG_IGN, SIGINT, SIGTERM, Signals
 from signal import signal as signal_func
 
+from sanic.application.ext import setup_ext
 from sanic.compat import OS_IS_WINDOWS, ctrlc_workaround_for_windows
 from sanic.log import error_logger, logger
 from sanic.models.server_types import Signal
@@ -114,6 +117,7 @@ def serve(
         **asyncio_server_kwargs,
     )
 
+    setup_ext(app)
     if run_async:
         return AsyncioServer(
             app=app,
@@ -174,6 +178,9 @@ def serve(
             loop.run_until_complete(asyncio.sleep(0.1))
             start_shutdown = start_shutdown + 0.1
 
+        if sys.version_info > (3, 7):
+            app.shutdown_tasks(graceful - start_shutdown)
+
         # Force close non-idle connection after waiting for
         # graceful_shutdown_timeout
         for conn in connections:

sanic/signals.py

@@ -4,7 +4,7 @@ import asyncio
 
 from enum import Enum
 from inspect import isawaitable
-from typing import Any, Dict, List, Optional, Tuple, Union
+from typing import Any, Dict, List, Optional, Tuple, Union, cast
 
 from sanic_routing import BaseRouter, Route, RouteGroup  # type: ignore
 from sanic_routing.exceptions import NotFound  # type: ignore
@@ -142,12 +142,21 @@ class SignalRouter(BaseRouter):
         if context:
             params.update(context)
 
+        signals = group.routes
         if not reverse:
-            handlers = handlers[::-1]
+            signals = signals[::-1]
         try:
-            for handler in handlers:
-                if condition is None or condition == handler.__requirements__:
-                    maybe_coroutine = handler(**params)
+            for signal in signals:
+                params.pop("__trigger__", None)
+                if (
+                    (condition is None and signal.ctx.exclusive is False)
+                    or (
+                        condition is None
+                        and not signal.handler.__requirements__
+                    )
+                    or (condition == signal.handler.__requirements__)
+                ) and (signal.ctx.trigger or event == signal.ctx.definition):
+                    maybe_coroutine = signal.handler(**params)
                     if isawaitable(maybe_coroutine):
                         retval = await maybe_coroutine
                         if retval:
@@ -190,23 +199,36 @@ class SignalRouter(BaseRouter):
         handler: SignalHandler,
         event: str,
         condition: Optional[Dict[str, Any]] = None,
+        exclusive: bool = True,
     ) -> Signal:
+        event_definition = event
         parts = self._build_event_parts(event)
         if parts[2].startswith("<"):
             name = ".".join([*parts[:-1], "*"])
+            trigger = self._clean_trigger(parts[2])
         else:
             name = event
+            trigger = ""
+
+        if not trigger:
+            event = ".".join([*parts[:2], "<__trigger__>"])
 
         handler.__requirements__ = condition  # type: ignore
+        handler.__trigger__ = trigger  # type: ignore
 
-        return super().add(
+        signal = super().add(
             event,
             handler,
-            requirements=condition,
             name=name,
             append=True,
         )  # type: ignore
 
+        signal.ctx.exclusive = exclusive
+        signal.ctx.trigger = trigger
+        signal.ctx.definition = event_definition
+
+        return cast(Signal, signal)
+
     def finalize(self, do_compile: bool = True, do_optimize: bool = False):
         self.add(_blank, "sanic.__signal__.__init__")
 
@@ -238,3 +260,9 @@ class SignalRouter(BaseRouter):
                 "Cannot declare reserved signal event: %s" % event
             )
         return parts
+
+    def _clean_trigger(self, trigger: str) -> str:
+        trigger = trigger[1:-1]
+        if ":" in trigger:
+            trigger, _ = trigger.split(":")
+        return trigger

sanic/touchup/meta.py

@@ -1,9 +1,10 @@
+from sanic.base.meta import SanicMeta
 from sanic.exceptions import SanicException
 
 from .service import TouchUp
 
 
-class TouchUpMeta(type):
+class TouchUpMeta(SanicMeta):
     def __new__(cls, name, bases, attrs, **kwargs):
         gen_class = super().__new__(cls, name, bases, attrs, **kwargs)
 

sanic/types/__init__.py

@@ -0,0 +1,4 @@
+from .hashable_dict import HashableDict
+
+
+__all__ = ("HashableDict",)

sanic/types/hashable_dict.py

@@ -0,0 +1,3 @@
+class HashableDict(dict):
+    def __hash__(self):
+        return hash(tuple(sorted(self.items())))

sanic/views.py

@@ -9,14 +9,11 @@ from typing import (
     Optional,
     Union,
 )
-from warnings import warn
 
-from sanic.constants import HTTP_METHODS
-from sanic.exceptions import InvalidUsage
 from sanic.models.handler_types import RouteHandler
 
 
-if TYPE_CHECKING:
+if TYPE_CHECKING:  # no cov
     from sanic import Sanic
     from sanic.blueprints import Blueprint
 
@@ -84,6 +81,8 @@ class HTTPMethodView:
 
     def dispatch_request(self, request, *args, **kwargs):
         handler = getattr(self, request.method.lower(), None)
+        if not handler and request.method == "HEAD":
+            handler = self.get
         return handler(request, *args, **kwargs)
 
     @classmethod
@@ -136,48 +135,3 @@ class HTTPMethodView:
 def stream(func):
     func.is_stream = True
     return func
-
-
-class CompositionView:
-    """Simple method-function mapped view for the sanic.
-    You can add handler functions to methods (get, post, put, patch, delete)
-    for every HTTP method you want to support.
-
-    For example:
-
-    .. code-block:: python
-
-        view = CompositionView()
-        view.add(['GET'], lambda request: text('I am get method'))
-        view.add(['POST', 'PUT'], lambda request: text('I am post/put method'))
-
-    If someone tries to use a non-implemented method, there will be a
-    405 response.
-    """
-
-    def __init__(self):
-        self.handlers = {}
-        self.name = self.__class__.__name__
-        warn(
-            "CompositionView has been deprecated and will be removed in "
-            "v21.12. Please update your view to HTTPMethodView.",
-            DeprecationWarning,
-        )
-
-    def __name__(self):
-        return self.name
-
-    def add(self, methods, handler, stream=False):
-        if stream:
-            handler.is_stream = stream
-        for method in methods:
-            if method not in HTTP_METHODS:
-                raise InvalidUsage(f"{method} is not a valid HTTP method.")
-
-            if method in self.handlers:
-                raise InvalidUsage(f"Method {method} is already registered.")
-            self.handlers[method] = handler
-
-    def __call__(self, request, *args, **kwargs):
-        handler = self.handlers[request.method.upper()]
-        return handler(request, *args, **kwargs)

sanic/worker.py

@@ -7,22 +7,19 @@ import traceback
 
 from gunicorn.workers import base  # type: ignore
 
+from sanic.compat import UVLOOP_INSTALLED
 from sanic.log import logger
-from sanic.server import HttpProtocol, Signal, serve
+from sanic.server import HttpProtocol, Signal, serve, try_use_uvloop
 from sanic.server.protocols.websocket_protocol import WebSocketProtocol
 
 
 try:
     import ssl  # type: ignore
-except ImportError:
+except ImportError:  # no cov
     ssl = None  # type: ignore
 
-try:
-    import uvloop  # type: ignore
-
-    asyncio.set_event_loop_policy(uvloop.EventLoopPolicy())
-except ImportError:
-    pass
+if UVLOOP_INSTALLED:  # no cov
+    try_use_uvloop()
 
 
 class GunicornWorker(base.Worker):

setup.py

@@ -147,6 +147,7 @@ extras_require = {
     "dev": dev_require,
     "docs": docs_require,
     "all": all_require,
+    "ext": ["sanic-ext"],
 }
 
 setup_kwargs["install_requires"] = requirements

tests/conftest.py

@@ -6,8 +6,10 @@ import string
 import sys
 import uuid
 
+from contextlib import suppress
 from logging import LogRecord
-from typing import Callable, List, Tuple
+from typing import List, Tuple
+from unittest.mock import MagicMock
 
 import pytest
 
@@ -184,3 +186,21 @@ def message_in_records():
         return error_captured
 
     return msg_in_log
+
+
+@pytest.fixture
+def ext_instance():
+    ext_instance = MagicMock()
+    ext_instance.injection = MagicMock()
+    return ext_instance
+
+
+@pytest.fixture(autouse=True)  # type: ignore
+def sanic_ext(ext_instance):  # noqa
+    sanic_ext = MagicMock(__version__="1.2.3")
+    sanic_ext.Extend = MagicMock()
+    sanic_ext.Extend.return_value = ext_instance
+    sys.modules["sanic_ext"] = sanic_ext
+    yield sanic_ext
+    with suppress(KeyError):
+        del sys.modules["sanic_ext"]

tests/fake/server.py

@@ -1,5 +1,4 @@
 import json
-import logging
 
 from sanic import Sanic, text
 from sanic.log import LOGGING_CONFIG_DEFAULTS, logger
@@ -9,7 +8,7 @@ LOGGING_CONFIG = {**LOGGING_CONFIG_DEFAULTS}
 LOGGING_CONFIG["formatters"]["generic"]["format"] = "%(message)s"
 LOGGING_CONFIG["loggers"]["sanic.root"]["level"] = "DEBUG"
 
-app = Sanic(__name__, log_config=LOGGING_CONFIG)
+app = Sanic("FakeServer", log_config=LOGGING_CONFIG)
 
 
 @app.get("/")

tests/test_app.py

@@ -2,15 +2,20 @@ import asyncio
 import logging
 import re
 
+from collections import Counter
 from inspect import isawaitable
 from os import environ
 from unittest.mock import Mock, patch
 
 import pytest
 
+import sanic
+
 from sanic import Sanic
+from sanic.compat import OS_IS_WINDOWS
 from sanic.config import Config
 from sanic.exceptions import SanicException
+from sanic.helpers import _default
 from sanic.response import text
 
 
@@ -19,15 +24,6 @@ def clear_app_registry():
     Sanic._app_registry = {}
 
 
-def uvloop_installed():
-    try:
-        import uvloop  # noqa
-
-        return True
-    except ImportError:
-        return False
-
-
 def test_app_loop_running(app):
     @app.get("/test")
     async def handler(request):
@@ -397,6 +393,22 @@ def test_app_no_registry():
         Sanic.get_app("no-register")
 
 
+def test_app_no_registry_deprecation_message():
+    with pytest.warns(DeprecationWarning) as records:
+        Sanic("no-register", register=False)
+        Sanic("yes-register", register=True)
+
+    message = (
+        "[DEPRECATION v22.6] The register argument is deprecated and will "
+        "stop working in v22.6. After v22.6 all apps will be added to the "
+        "Sanic app registry."
+    )
+
+    assert len(records) == 2
+    for record in records:
+        assert record.message.args[0] == message
+
+
 def test_app_no_registry_env():
     environ["SANIC_REGISTER"] = "False"
     Sanic("no-register")
@@ -408,15 +420,12 @@ def test_app_no_registry_env():
 
 
 def test_app_set_attribute_warning(app):
-    with pytest.warns(DeprecationWarning) as record:
-        app.foo = 1
-
-    assert len(record) == 1
-    assert record[0].message.args[0] == (
-        "Setting variables on Sanic instances is deprecated "
-        "and will be removed in version 21.12. You should change your "
-        "Sanic instance to use instance.ctx.foo instead."
+    message = (
+        "Setting variables on Sanic instances is not allowed. You should "
+        "change your Sanic instance to use instance.ctx.foo instead."
     )
+    with pytest.raises(AttributeError, match=message):
+        app.foo = 1
 
 
 def test_app_set_context(app):
@@ -438,15 +447,7 @@ def test_bad_custom_config():
         SanicException,
         match=(
             "When instantiating Sanic with config, you cannot also pass "
-            "load_env or env_prefix"
-        ),
-    ):
-        Sanic("test", config=1, load_env=1)
-    with pytest.raises(
-        SanicException,
-        match=(
-            "When instantiating Sanic with config, you cannot also pass "
-            "load_env or env_prefix"
+            "env_prefix"
         ),
     ):
         Sanic("test", config=1, env_prefix=1)
@@ -472,6 +473,98 @@ def test_custom_context():
     assert app.ctx == ctx
 
 
+def test_uvloop_config(app, monkeypatch):
+    @app.get("/test")
+    def handler(request):
+        return text("ok")
+
+    try_use_uvloop = Mock()
+    monkeypatch.setattr(sanic.app, "try_use_uvloop", try_use_uvloop)
+
+    # Default config
+    app.test_client.get("/test")
+    if OS_IS_WINDOWS:
+        try_use_uvloop.assert_not_called()
+    else:
+        try_use_uvloop.assert_called_once()
+
+    try_use_uvloop.reset_mock()
+    app.config["USE_UVLOOP"] = False
+    app.test_client.get("/test")
+    try_use_uvloop.assert_not_called()
+
+    try_use_uvloop.reset_mock()
+    app.config["USE_UVLOOP"] = True
+    app.test_client.get("/test")
+    try_use_uvloop.assert_called_once()
+
+
+def test_uvloop_cannot_never_called_with_create_server(caplog, monkeypatch):
+    apps = (Sanic("default-uvloop"), Sanic("no-uvloop"), Sanic("yes-uvloop"))
+
+    apps[1].config.USE_UVLOOP = False
+    apps[2].config.USE_UVLOOP = True
+
+    try_use_uvloop = Mock()
+    monkeypatch.setattr(sanic.app, "try_use_uvloop", try_use_uvloop)
+
+    loop = asyncio.get_event_loop()
+
+    with caplog.at_level(logging.WARNING):
+        for app in apps:
+            srv_coro = app.create_server(
+                return_asyncio_server=True,
+                asyncio_server_kwargs=dict(start_serving=False),
+            )
+            loop.run_until_complete(srv_coro)
+
+    try_use_uvloop.assert_not_called()  # Check it didn't try to change policy
+
+    message = (
+        "You are trying to change the uvloop configuration, but "
+        "this is only effective when using the run(...) method. "
+        "When using the create_server(...) method Sanic will use "
+        "the already existing loop."
+    )
+
+    counter = Counter([(r[1], r[2]) for r in caplog.record_tuples])
+    modified = sum(1 for app in apps if app.config.USE_UVLOOP is not _default)
+
+    assert counter[(logging.WARNING, message)] == modified
+
+
+def test_multiple_uvloop_configs_display_warning(caplog):
+    Sanic._uvloop_setting = None  # Reset the setting (changed in prev tests)
+
+    default_uvloop = Sanic("default-uvloop")
+    no_uvloop = Sanic("no-uvloop")
+    yes_uvloop = Sanic("yes-uvloop")
+
+    no_uvloop.config.USE_UVLOOP = False
+    yes_uvloop.config.USE_UVLOOP = True
+
+    loop = asyncio.get_event_loop()
+
+    with caplog.at_level(logging.WARNING):
+        for app in (default_uvloop, no_uvloop, yes_uvloop):
+            srv_coro = app.create_server(
+                return_asyncio_server=True,
+                asyncio_server_kwargs=dict(start_serving=False),
+            )
+            srv = loop.run_until_complete(srv_coro)
+            loop.run_until_complete(srv.startup())
+
+    message = (
+        "It looks like you're running several apps with different "
+        "uvloop settings. This is not supported and may lead to "
+        "unintended behaviour."
+    )
+
+    counter = Counter([(r[1], r[2]) for r in caplog.record_tuples])
+
+    assert counter[(logging.WARNING, message)] == 2
+
+
 def test_cannot_run_fast_and_workers(app):
     message = "You cannot use both fast=True and workers=X"
     with pytest.raises(RuntimeError, match=message):

tests/test_asgi.py

@@ -145,6 +145,37 @@ def test_listeners_triggered_async(app):
     assert after_server_stop
 
 
+def test_non_default_uvloop_config_raises_warning(app):
+    app.config.USE_UVLOOP = True
+
+    class CustomServer(uvicorn.Server):
+        def install_signal_handlers(self):
+            pass
+
+    config = uvicorn.Config(app=app, loop="asyncio", limit_max_requests=0)
+    server = CustomServer(config=config)
+
+    with pytest.warns(UserWarning) as records:
+        server.run()
+
+    all_tasks = asyncio.all_tasks(asyncio.get_event_loop())
+    for task in all_tasks:
+        task.cancel()
+
+    msg = ""
+    for record in records:
+        _msg = str(record.message)
+        if _msg.startswith("You have set the USE_UVLOOP configuration"):
+            msg = _msg
+            break
+
+    assert msg == (
+        "You have set the USE_UVLOOP configuration option, but Sanic "
+        "cannot control the event loop when running in ASGI mode."
+        "This option will be ignored."
+    )
+
+
 @pytest.mark.asyncio
 async def test_mockprotocol_events(protocol):
     assert protocol._not_paused.is_set()

tests/test_base.py

@@ -1,6 +1,7 @@
 import pytest
 
 from sanic import Blueprint, Sanic
+from sanic.exceptions import SanicException
 
 
 @pytest.fixture
@@ -79,24 +80,18 @@ def test_names_okay(name):
 )
 def test_names_not_okay(name):
     app_message = (
-        f"Sanic instance named '{name}' uses a format that isdeprecated. "
-        "Starting in version 21.12, Sanic objects must be named only using "
-        "alphanumeric characters, _, or -."
+        f"Sanic instance named '{name}' uses an invalid format. Names must "
+        "begin with a character and may only contain alphanumeric "
+        "characters, _, or -."
     )
     bp_message = (
-        f"Blueprint instance named '{name}' uses a format that isdeprecated. "
-        "Starting in version 21.12, Blueprint objects must be named only using "
-        "alphanumeric characters, _, or -."
+        f"Blueprint instance named '{name}' uses an invalid format. Names "
+        "must begin with a character and may only contain alphanumeric "
+        "characters, _, or -."
     )
 
-    with pytest.warns(DeprecationWarning) as app_e:
-        app = Sanic(name)
+    with pytest.raises(SanicException, match=app_message):
+        Sanic(name)
 
-    with pytest.warns(DeprecationWarning) as bp_e:
-        bp = Blueprint(name)
-
-    assert app.name == name
-    assert bp.name == name
-
-    assert app_e[0].message.args[0] == app_message
-    assert bp_e[0].message.args[0] == bp_message
+    with pytest.raises(SanicException, match=bp_message):
+        Blueprint(name)

tests/test_blueprints.py

@@ -15,7 +15,6 @@ from sanic.exceptions import (
 )
 from sanic.request import Request
 from sanic.response import json, text
-from sanic.views import CompositionView
 
 
 # ------------------------------------------------------------ #
@@ -833,7 +832,7 @@ def test_static_blueprint_name(static_file_directory, file_name):
 
 @pytest.mark.parametrize("file_name", ["test.file"])
 def test_static_blueprintp_mw(app: Sanic, static_file_directory, file_name):
-    current_file = inspect.getfile(inspect.currentframe())
+    current_file = inspect.getfile(inspect.currentframe())  # type: ignore
     with open(current_file, "rb") as file:
         file.read()
 
@@ -862,31 +861,6 @@ def test_static_blueprintp_mw(app: Sanic, static_file_directory, file_name):
     assert triggered is True
 
 
-def test_route_handler_add(app: Sanic):
-    view = CompositionView()
-
-    async def get_handler(request):
-        return json({"response": "OK"})
-
-    view.add(["GET"], get_handler, stream=False)
-
-    async def default_handler(request):
-        return text("OK")
-
-    bp = Blueprint(name="handler", url_prefix="/handler")
-    bp.add_route(default_handler, uri="/default/", strict_slashes=True)
-
-    bp.add_route(view, uri="/view", name="test")
-
-    app.blueprint(bp)
-
-    _, response = app.test_client.get("/handler/default/")
-    assert response.text == "OK"
-
-    _, response = app.test_client.get("/handler/view")
-    assert response.json["response"] == "OK"
-
-
 def test_websocket_route(app: Sanic):
     event = asyncio.Event()
 
@@ -1079,15 +1053,12 @@ def test_blueprint_registered_multiple_apps():
 
 def test_bp_set_attribute_warning():
     bp = Blueprint("bp")
-    with pytest.warns(DeprecationWarning) as record:
-        bp.foo = 1
-
-    assert len(record) == 1
-    assert record[0].message.args[0] == (
-        "Setting variables on Blueprint instances is deprecated "
-        "and will be removed in version 21.12. You should change your "
-        "Blueprint instance to use instance.ctx.foo instead."
+    message = (
+        "Setting variables on Blueprint instances is not allowed. You should "
+        "change your Blueprint instance to use instance.ctx.foo instead."
     )
+    with pytest.raises(AttributeError, match=message):
+        bp.foo = 1
 
 
 def test_early_registration(app):

tests/test_cli.py

@@ -32,6 +32,12 @@ def starting_line(lines):
     return 0
 
 
+def read_app_info(lines):
+    for line in lines:
+        if line.startswith(b"{") and line.endswith(b"}"):
+            return json.loads(line)
+
+
 @pytest.mark.parametrize(
     "appname",
     (
@@ -199,9 +205,7 @@ def test_debug(cmd):
     command = ["sanic", "fake.server.app", cmd]
     out, err, exitcode = capture(command)
     lines = out.split(b"\n")
-
-    app_info = lines[starting_line(lines) + 9]
-    info = json.loads(app_info)
+    info = read_app_info(lines)
 
     assert info["debug"] is True
     assert info["auto_reload"] is True
@@ -212,9 +216,7 @@ def test_auto_reload(cmd):
     command = ["sanic", "fake.server.app", cmd]
     out, err, exitcode = capture(command)
     lines = out.split(b"\n")
-
-    app_info = lines[starting_line(lines) + 9]
-    info = json.loads(app_info)
+    info = read_app_info(lines)
 
     assert info["debug"] is False
     assert info["auto_reload"] is True
@@ -227,9 +229,7 @@ def test_access_logs(cmd, expected):
     command = ["sanic", "fake.server.app", cmd]
     out, err, exitcode = capture(command)
     lines = out.split(b"\n")
-
-    app_info = lines[starting_line(lines) + 8]
-    info = json.loads(app_info)
+    info = read_app_info(lines)
 
     assert info["access_log"] is expected
 
@@ -254,8 +254,6 @@ def test_noisy_exceptions(cmd, expected):
     command = ["sanic", "fake.server.app", cmd]
     out, err, exitcode = capture(command)
     lines = out.split(b"\n")
-
-    app_info = lines[starting_line(lines) + 8]
-    info = json.loads(app_info)
+    info = read_app_info(lines)
 
     assert info["noisy_exceptions"] is expected

tests/test_config.py

@@ -1,9 +1,11 @@
+import logging
+
 from contextlib import contextmanager
 from os import environ
 from pathlib import Path
 from tempfile import TemporaryDirectory
 from textwrap import dedent
-from unittest.mock import Mock
+from unittest.mock import Mock, call
 
 import pytest
 
@@ -32,6 +34,11 @@ class ConfigTest:
         return self.not_for_config
 
 
+class UltimateAnswer:
+    def __init__(self, answer):
+        self.answer = int(answer)
+
+
 def test_load_from_object(app):
     app.config.load(ConfigTest)
     assert "CONFIG_VALUE" in app.config
@@ -74,26 +81,6 @@ def test_auto_bool_env_prefix():
     del environ["SANIC_TEST_ANSWER"]
 
 
-def test_dont_load_env():
-    environ["SANIC_TEST_ANSWER"] = "42"
-    app = Sanic(name=__name__, load_env=False)
-    assert getattr(app.config, "TEST_ANSWER", None) is None
-    del environ["SANIC_TEST_ANSWER"]
-
-
-@pytest.mark.parametrize("load_env", [None, False, "", "MYAPP_"])
-def test_load_env_deprecation(load_env):
-    with pytest.warns(DeprecationWarning, match=r"21\.12"):
-        _ = Sanic(name=__name__, load_env=load_env)
-
-
-def test_load_env_prefix():
-    environ["MYAPP_TEST_ANSWER"] = "42"
-    app = Sanic(name=__name__, load_env="MYAPP_")
-    assert app.config.TEST_ANSWER == 42
-    del environ["MYAPP_TEST_ANSWER"]
-
-
 @pytest.mark.parametrize("env_prefix", [None, ""])
 def test_empty_load_env_prefix(env_prefix):
     environ["SANIC_TEST_ANSWER"] = "42"
@@ -102,20 +89,6 @@ def test_empty_load_env_prefix(env_prefix):
     del environ["SANIC_TEST_ANSWER"]
 
 
-def test_load_env_prefix_float_values():
-    environ["MYAPP_TEST_ROI"] = "2.3"
-    app = Sanic(name=__name__, load_env="MYAPP_")
-    assert app.config.TEST_ROI == 2.3
-    del environ["MYAPP_TEST_ROI"]
-
-
-def test_load_env_prefix_string_value():
-    environ["MYAPP_TEST_TOKEN"] = "somerandomtesttoken"
-    app = Sanic(name=__name__, load_env="MYAPP_")
-    assert app.config.TEST_TOKEN == "somerandomtesttoken"
-    del environ["MYAPP_TEST_TOKEN"]
-
-
 def test_env_prefix():
     environ["MYAPP_TEST_ANSWER"] = "42"
     app = Sanic(name=__name__, env_prefix="MYAPP_")
@@ -137,6 +110,32 @@ def test_env_prefix_string_value():
     del environ["MYAPP_TEST_TOKEN"]
 
 
+def test_env_w_custom_converter():
+    environ["SANIC_TEST_ANSWER"] = "42"
+
+    config = Config(converters=[UltimateAnswer])
+    app = Sanic(name=__name__, config=config)
+    assert isinstance(app.config.TEST_ANSWER, UltimateAnswer)
+    assert app.config.TEST_ANSWER.answer == 42
+    del environ["SANIC_TEST_ANSWER"]
+
+
+def test_add_converter_multiple_times(caplog):
+    def converter():
+        ...
+
+    message = (
+        "Configuration value converter 'converter' has already been registered"
+    )
+    config = Config()
+    config.register_type(converter)
+    with caplog.at_level(logging.WARNING):
+        config.register_type(converter)
+
+    assert ("sanic.error", logging.WARNING, message) in caplog.record_tuples
+    assert len(config._converters) == 5
+
+
 def test_load_from_file(app):
     config = dedent(
         """
@@ -386,5 +385,24 @@ def test_config_set_methods(app, monkeypatch):
     post_set.assert_called_once_with("FOO", 5)
     post_set.reset_mock()
 
-    app.config.update_config({"FOO": 6})
-    post_set.assert_called_once_with("FOO", 6)
+    app.config.update({"FOO": 6}, {"BAR": 7})
+    post_set.assert_has_calls(
+        calls=[
+            call("FOO", 6),
+            call("BAR", 7),
+        ]
+    )
+    post_set.reset_mock()
+
+    app.config.update({"FOO": 8}, BAR=9)
+    post_set.assert_has_calls(
+        calls=[
+            call("FOO", 8),
+            call("BAR", 9),
+        ],
+        any_order=True,
+    )
+    post_set.reset_mock()
+
+    app.config.update_config({"FOO": 10})
+    post_set.assert_called_once_with("FOO", 10)

tests/test_create_task.py

@@ -1,7 +1,12 @@
 import asyncio
+import sys
 
 from threading import Event
+from unittest.mock import Mock
 
+import pytest
+
+from sanic.exceptions import SanicException
 from sanic.response import text
 
 
@@ -48,3 +53,60 @@ def test_create_task_with_app_arg(app):
 
     _, response = app.test_client.get("/")
     assert response.text == "test_create_task_with_app_arg"
+
+
+@pytest.mark.skipif(sys.version_info < (3, 8), reason="Not supported in 3.7")
+def test_create_named_task(app):
+    async def dummy():
+        ...
+
+    @app.before_server_start
+    async def setup(app, _):
+        app.add_task(dummy, name="dummy_task")
+
+    @app.after_server_start
+    async def stop(app, _):
+        task = app.get_task("dummy_task")
+
+        assert app._task_registry
+        assert isinstance(task, asyncio.Task)
+
+        assert task.get_name() == "dummy_task"
+
+        app.stop()
+
+    app.run()
+
+
+def test_named_task_called(app):
+    e = Event()
+
+    async def coro():
+        e.set()
+
+    @app.route("/")
+    async def isset(request):
+        await asyncio.sleep(0.05)
+        return text(str(e.is_set()))
+
+    @app.before_server_start
+    async def setup(app, _):
+        app.add_task(coro, name="dummy_task")
+
+    request, response = app.test_client.get("/")
+    assert response.body == b"True"
+
+
+@pytest.mark.skipif(sys.version_info < (3, 8), reason="Not supported in 3.7")
+def test_create_named_task_fails_outside_app(app):
+    async def dummy():
+        ...
+
+    message = "Cannot name task outside of a running application"
+    with pytest.raises(RuntimeError, match=message):
+        app.add_task(dummy, name="dummy_task")
+    assert not app._task_registry
+
+    message = 'Registered task named "dummy_task" not found.'
+    with pytest.raises(SanicException, match=message):
+        app.get_task("dummy_task")

tests/test_deprecation.py

@@ -0,0 +1,9 @@
+import pytest
+
+from sanic.log import deprecation
+
+
+def test_deprecation():
+    message = r"\[DEPRECATION v9\.9\] hello"
+    with pytest.warns(DeprecationWarning, match=message):
+        deprecation("hello", 9.9)

tests/test_errorpages.py

@@ -280,40 +280,20 @@ def test_allow_fallback_error_format_set_main_process_start(app):
     async def start(app, _):
         app.config.FALLBACK_ERROR_FORMAT = "text"
 
-    request, response = app.test_client.get("/error")
-    assert request.app.error_handler.fallback == "text"
+    _, response = app.test_client.get("/error")
     assert response.status == 500
     assert response.content_type == "text/plain; charset=utf-8"
 
 
-def test_setting_fallback_to_non_default_raise_warning(app):
-    app.error_handler = ErrorHandler(fallback="text")
+def test_setting_fallback_on_config_changes_as_expected(app):
+    app.error_handler = ErrorHandler()
 
-    assert app.error_handler.fallback == "text"
-
-    with pytest.warns(
-        UserWarning,
-        match=(
-            "Overriding non-default ErrorHandler fallback value. "
-            "Changing from text to auto."
-        ),
-    ):
-        app.config.FALLBACK_ERROR_FORMAT = "auto"
-
-    assert app.error_handler.fallback == "auto"
+    _, response = app.test_client.get("/error")
+    assert response.content_type == "text/html; charset=utf-8"
 
     app.config.FALLBACK_ERROR_FORMAT = "text"
-
-    with pytest.warns(
-        UserWarning,
-        match=(
-            "Overriding non-default ErrorHandler fallback value. "
-            "Changing from text to json."
-        ),
-    ):
-        app.config.FALLBACK_ERROR_FORMAT = "json"
-
-    assert app.error_handler.fallback == "json"
+    _, response = app.test_client.get("/error")
+    assert response.content_type == "text/plain; charset=utf-8"
 
 
 def test_allow_fallback_error_format_in_config_injection():
@@ -327,7 +307,6 @@ def test_allow_fallback_error_format_in_config_injection():
         raise Exception("something went wrong")
 
     request, response = app.test_client.get("/error")
-    assert request.app.error_handler.fallback == "text"
     assert response.status == 500
     assert response.content_type == "text/plain; charset=utf-8"
 
@@ -339,6 +318,39 @@ def test_allow_fallback_error_format_in_config_replacement(app):
     app.config = MyConfig()
 
     request, response = app.test_client.get("/error")
-    assert request.app.error_handler.fallback == "text"
     assert response.status == 500
     assert response.content_type == "text/plain; charset=utf-8"
+
+
+def test_config_fallback_before_and_after_startup(app):
+    app.config.FALLBACK_ERROR_FORMAT = "json"
+
+    @app.main_process_start
+    async def start(app, _):
+        app.config.FALLBACK_ERROR_FORMAT = "text"
+
+    _, response = app.test_client.get("/error")
+    assert response.status == 500
+    assert response.content_type == "text/plain; charset=utf-8"
+
+
+def test_config_fallback_using_update_dict(app):
+    app.config.update({"FALLBACK_ERROR_FORMAT": "text"})
+
+    _, response = app.test_client.get("/error")
+    assert response.status == 500
+    assert response.content_type == "text/plain; charset=utf-8"
+
+
+def test_config_fallback_using_update_kwarg(app):
+    app.config.update(FALLBACK_ERROR_FORMAT="text")
+
+    _, response = app.test_client.get("/error")
+    assert response.status == 500
+    assert response.content_type == "text/plain; charset=utf-8"
+
+
+def test_config_fallback_bad_value(app):
+    message = "Unknown format: fake"
+    with pytest.raises(SanicException, match=message):
+        app.config.FALLBACK_ERROR_FORMAT = "fake"

tests/test_exceptions.py

@@ -13,7 +13,6 @@ from sanic.exceptions import (
     SanicException,
     ServerError,
     Unauthorized,
-    abort,
 )
 from sanic.response import text
 
@@ -88,10 +87,6 @@ def exception_app():
     def handler_500_error(request):
         raise SanicException(status_code=500)
 
-    @app.route("/old_abort")
-    def handler_old_abort_error(request):
-        abort(500)
-
     @app.route("/abort/message")
     def handler_abort_message(request):
         raise SanicException(message="Custom Message", status_code=500)
@@ -239,11 +234,6 @@ def test_sanic_exception(exception_app):
     assert response.status == 500
     assert "Custom Message" in response.text
 
-    with warnings.catch_warnings(record=True) as w:
-        request, response = exception_app.test_client.get("/old_abort")
-    assert response.status == 500
-    assert len(w) == 1 and "deprecated" in w[0].message.args[0]
-
 
 def test_custom_exception_default_message(exception_app):
     class TeaError(SanicException):
@@ -262,7 +252,7 @@ def test_custom_exception_default_message(exception_app):
 
 
 def test_exception_in_ws_logged(caplog):
-    app = Sanic(__file__)
+    app = Sanic(__name__)
 
     @app.websocket("/feed")
     async def feed(request, ws):
@@ -271,9 +261,13 @@ def test_exception_in_ws_logged(caplog):
     with caplog.at_level(logging.INFO):
         app.test_client.websocket("/feed")
 
-    error_logs = [r for r in caplog.record_tuples if r[0] == "sanic.error"]
-    assert error_logs[1][1] == logging.ERROR
-    assert "Exception occurred while handling uri:" in error_logs[1][2]
+    for record in caplog.record_tuples:
+        if record[2].startswith("Exception occurred"):
+            break
+
+    assert record[0] == "sanic.error"
+    assert record[1] == logging.ERROR
+    assert "Exception occurred while handling uri:" in record[2]
 
 
 @pytest.mark.parametrize("debug", (True, False))

tests/test_exceptions_handler.py

@@ -226,11 +226,12 @@ def test_single_arg_exception_handler_notice(
     exception_handler_app.error_handler = CustomErrorHandler()
 
     message = (
-        "You are using a deprecated error handler. The lookup method should "
-        "accept two positional parameters: (exception, route_name: "
-        "Optional[str]). Until you upgrade your ErrorHandler.lookup, "
-        "Blueprint specific exceptions will not work properly. Beginning in "
-        "v22.3, the legacy style lookup method will not work at all."
+        "[DEPRECATION v22.3] You are using a deprecated error handler. The "
+        "lookup method should accept two positional parameters: (exception, "
+        "route_name: Optional[str]). Until you upgrade your "
+        "ErrorHandler.lookup, Blueprint specific exceptions will not work "
+        "properly. Beginning in v22.3, the legacy style lookup method will "
+        "not work at all."
     )
     with pytest.warns(DeprecationWarning) as record:
         _, response = exception_handler_app.test_client.get("/1")

tests/test_ext_integration.py

@@ -0,0 +1,84 @@
+import sys
+
+from unittest.mock import MagicMock
+
+import pytest
+
+from sanic import Sanic
+
+
+try:
+    import sanic_ext
+
+    SANIC_EXT_IN_ENV = True
+except ImportError:
+    SANIC_EXT_IN_ENV = False
+
+
+@pytest.fixture
+def stoppable_app(app):
+    @app.before_server_start
+    async def stop(*_):
+        app.stop()
+
+    return app
+
+
+def test_ext_is_loaded(stoppable_app: Sanic, sanic_ext):
+    stoppable_app.run()
+    sanic_ext.Extend.assert_called_once_with(stoppable_app)
+
+
+def test_ext_is_not_loaded(stoppable_app: Sanic, sanic_ext):
+    stoppable_app.config.AUTO_EXTEND = False
+    stoppable_app.run()
+    sanic_ext.Extend.assert_not_called()
+
+
+def test_extend_with_args(stoppable_app: Sanic, sanic_ext):
+    stoppable_app.extend(built_in_extensions=False)
+    stoppable_app.run()
+    sanic_ext.Extend.assert_called_once_with(
+        stoppable_app, built_in_extensions=False, config=None, extensions=None
+    )
+
+
+def test_access_object_sets_up_extension(app: Sanic, sanic_ext):
+    app.ext
+    sanic_ext.Extend.assert_called_once_with(app)
+
+
+def test_extend_cannot_be_called_multiple_times(app: Sanic, sanic_ext):
+    app.extend()
+
+    message = "Cannot extend Sanic after Sanic Extensions has been setup."
+    with pytest.raises(RuntimeError, match=message):
+        app.extend()
+    sanic_ext.Extend.assert_called_once_with(
+        app, extensions=None, built_in_extensions=True, config=None
+    )
+
+
+@pytest.mark.skipif(
+    SANIC_EXT_IN_ENV,
+    reason="Running tests with sanic_ext already in the environment",
+)
+def test_fail_if_not_loaded(app: Sanic):
+    del sys.modules["sanic_ext"]
+    with pytest.raises(
+        RuntimeError, match="Sanic Extensions is not installed.*"
+    ):
+        app.extend(built_in_extensions=False)
+
+
+def test_can_access_app_ext_while_running(app: Sanic, sanic_ext, ext_instance):
+    class IceCream:
+        flavor: str
+
+    @app.before_server_start
+    async def injections(*_):
+        app.ext.injection(IceCream)
+        app.stop()
+
+    app.run()
+    ext_instance.injection.assert_called_with(IceCream)

tests/test_graceful_shutdown.py

@@ -2,7 +2,6 @@ import asyncio
 import logging
 import time
 
-from collections import Counter
 from multiprocessing import Process
 
 import httpx
@@ -36,11 +35,14 @@ def test_no_exceptions_when_cancel_pending_request(app, caplog):
 
     p.kill()
 
-    counter = Counter([r[1] for r in caplog.record_tuples])
-
-    assert counter[logging.INFO] == 11
-    assert logging.ERROR not in counter
-    assert (
-        caplog.record_tuples[9][2]
-        == "Request: GET http://127.0.0.1:8000/ stopped. Transport is closed."
-    )
+    info = 0
+    for record in caplog.record_tuples:
+        assert record[1] != logging.ERROR
+        if record[1] == logging.INFO:
+            info += 1
+        if record[2].startswith("Request:"):
+            assert record[2] == (
+                "Request: GET http://127.0.0.1:8000/ stopped. "
+                "Transport is closed."
+            )
+    assert info == 11

tests/test_json_encoding.py

@@ -45,7 +45,7 @@ def default_back_to_ujson():
 
 
 def test_change_encoder():
-    Sanic("...", dumps=sdumps)
+    Sanic("Test", dumps=sdumps)
     assert BaseHTTPResponse._dumps == sdumps
 
 
@@ -53,7 +53,7 @@ def test_change_encoder_to_some_custom():
     def my_custom_encoder():
         return "foo"
 
-    Sanic("...", dumps=my_custom_encoder)
+    Sanic("Test", dumps=my_custom_encoder)
     assert BaseHTTPResponse._dumps == my_custom_encoder
 
 
@@ -68,7 +68,7 @@ def test_json_response_ujson(payload):
     ):
         json(payload, dumps=sdumps)
 
-    Sanic("...", dumps=sdumps)
+    Sanic("Test", dumps=sdumps)
     with pytest.raises(
         TypeError, match="Object of type Foo is not JSON serializable"
     ):
@@ -87,6 +87,6 @@ def test_json_response_json():
     response = json(too_big_for_ujson, dumps=sdumps)
     assert sys.getsizeof(response.body) == 54
 
-    Sanic("...", dumps=sdumps)
+    Sanic("Test", dumps=sdumps)
     response = json(too_big_for_ujson)
     assert sys.getsizeof(response.body) == 54