Remove Python3.7 support (#2777)

sanic/app.py

@@ -1227,18 +1227,9 @@ class Sanic(StaticHandleMixin, BaseSanic, StartupMixin, metaclass=TouchUpMeta):
     ) -> Task:
         if not isinstance(task, Future):
             prepped = cls._prep_task(task, app, loop)
-            if sys.version_info < (3, 8):  # no cov
-                task = loop.create_task(prepped)
-                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.get_name = lambda: name
-            else:
-                task = loop.create_task(prepped, name=name)
+            task = loop.create_task(prepped, name=name)
 
-        if name and register and sys.version_info > (3, 7):
+        if name and register:
             app._task_registry[name] = task
 
         return task

sanic/models/asgi.py

@@ -1,5 +1,4 @@
 import asyncio
-import sys
 
 from typing import Any, Awaitable, Callable, MutableMapping, Optional, Union
 
@@ -16,20 +15,10 @@ ASGIReceive = Callable[[], Awaitable[ASGIMessage]]
 
 class MockProtocol:  # no cov
     def __init__(self, transport: "MockTransport", loop):
-        # This should be refactored when < 3.8 support is dropped
         self.transport = transport
-        # Fixup for 3.8+; Sanic still supports 3.7 where loop is required
-        loop = loop if sys.version_info[:2] < (3, 8) else None
-        # Optional in 3.9, necessary in 3.10 because the parameter "loop"
-        # was completely removed
-        if not loop:
-            self._not_paused = asyncio.Event()
-            self._not_paused.set()
-            self._complete = asyncio.Event()
-        else:
-            self._not_paused = asyncio.Event(loop=loop)
-            self._not_paused.set()
-            self._complete = asyncio.Event(loop=loop)
+        self._not_paused = asyncio.Event()
+        self._not_paused.set()
+        self._complete = asyncio.Event()
 
     def pause_writing(self) -> None:
         self._not_paused.clear()

sanic/server/runners.py

@@ -1,7 +1,5 @@
 from __future__ import annotations
 
-import sys
-
 from ssl import SSLContext
 from typing import TYPE_CHECKING, Dict, Optional, Type, Union
 
@@ -251,8 +249,7 @@ def _serve_http_1(
             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)
+        app.shutdown_tasks(graceful - start_shutdown)
 
         # Force close non-idle connection after waiting for
         # graceful_shutdown_timeout