Merge pull request #602 from jkbbwr/fix/env-install

Flake8 cleanup. Setup environmental variables.

README.rst

@@ -59,6 +59,13 @@ Installation
 
 -  ``python -m pip install sanic``
 
+To install sanic without uvloop or json using bash, you can provide either or both of these environmental variables
+using any truthy string like `'y', 'yes', 't', 'true', 'on', '1'` and setting the NO_X to true will stop that features
+installation.
+
+- ``SANIC_NO_UVLOOP=true SANIC_NO_UJSON=true python -m pip install sanic``
+
+
 Documentation
 -------------
 

sanic/config.py

@@ -1,4 +1,5 @@
 import os
+
 import types
 
 SANIC_PREFIX = 'SANIC_'

sanic/response.py

@@ -1,5 +1,6 @@
 from mimetypes import guess_type
 from os import path
+
 try:
     from ujson import dumps as json_dumps
 except:

setup.py

@@ -4,8 +4,10 @@ Sanic
 import codecs
 import os
 import re
-from setuptools import setup
+from distutils.errors import DistutilsPlatformError
+from distutils.util import strtobool
 
+from setuptools import setup
 
 with codecs.open(os.path.join(os.path.abspath(os.path.dirname(
         __file__)), 'sanic', '__init__.py'), 'r', 'latin1') as fp:
@@ -35,23 +37,32 @@ setup_kwargs =  {
     ],
 }
 
-try:
-    normal_requirements = [
+ujson = 'ujson>=1.35'
+uvloop = 'uvloop>=0.5.3'
+
+requirements = [
     'httptools>=0.0.9',
-        'uvloop>=0.5.3',
-        'ujson>=1.35',
+    uvloop,
+    ujson,
     'aiofiles>=0.3.0',
     'websockets>=3.2',
-    ]
-    setup_kwargs['install_requires'] = normal_requirements
+]
+if strtobool(os.environ.get("SANIC_NO_UJSON", "no")):
+    print("Installing without uJSON")
+    requirements.remove(ujson)
+
+if strtobool(os.environ.get("SANIC_NO_UVLOOP", "no")):
+    print("Installing without uvLoop")
+    requirements.remove(uvloop)
+
+try:
+    setup_kwargs['install_requires'] = requirements
     setup(**setup_kwargs)
 except DistutilsPlatformError as exception:
-    windows_requirements = [
-        'httptools>=0.0.9',
-        'aiofiles>=0.3.0',
-        'websockets>=3.2',
-    ]
-    setup_kwargs['install_requires'] = windows_requirements
+    requirements.remove(ujson)
+    requirements.remove(uvloop)
+    print("Installing without uJSON or uvLoop")
+    setup_kwargs['install_requires'] = requirements
     setup(**setup_kwargs)
 
 # Installation was successful

tests/test_payload_too_large.py

@@ -1,6 +1,6 @@
 from sanic import Sanic
-from sanic.response import text
 from sanic.exceptions import PayloadTooLarge
+from sanic.response import text
 
 
 def test_payload_too_large_from_error_handler():