Update to Mypy 0.910 (#5890)

.mypy.ini

@@ -1,6 +1,7 @@
 [mypy]
 files = aiohttp, examples, tests
 check_untyped_defs = True
+exclude = examples/legacy/
 follow_imports_for_stubs = True
 #disallow_any_decorated = True
 disallow_any_generics = True

CHANGES/5890.misc

@@ -0,0 +1 @@
+Update to Mypy 0.910.

requirements/dev.txt

@@ -130,7 +130,7 @@ multidict==5.1.0
     # via
     #   -r requirements/multidict.txt
     #   yarl
-mypy==0.790 ; implementation_name == "cpython"
+mypy==0.910 ; implementation_name == "cpython"
     # via
     #   -r requirements/lint.txt
     #   -r requirements/test.txt
@@ -265,6 +265,8 @@ typed-ast==1.4.2
     # via
     #   -r requirements/lint.txt
     #   mypy
+types-chardet==0.1.3
+    # via -r requirements/lint.txt
 typing-extensions==3.7.4.3
     # via
     #   -r requirements/base.txt

requirements/lint.in

@@ -2,6 +2,7 @@ black==21.6b0; implementation_name=="cpython"
 flake8==3.9.2
 flake8-pyi==20.10.0
 isort==5.9.2
-mypy==0.790; implementation_name=="cpython"
+mypy==0.910; implementation_name=="cpython"
 pre-commit==2.13.0
 pytest==6.2.2
+types-chardet==0.1.3

requirements/lint.txt

@@ -36,7 +36,7 @@ isort==5.9.2
     # via -r requirements/lint.in
 mccabe==0.6.1
     # via flake8
-mypy==0.790 ; implementation_name == "cpython"
+mypy==0.910 ; implementation_name == "cpython"
     # via -r requirements/lint.in
 mypy-extensions==0.4.3
     # via
@@ -77,6 +77,8 @@ toml==0.10.2
     #   pytest
 typed-ast==1.4.2
     # via mypy
+types-chardet==0.1.3
+    # via -r requirements/lint.txt
 typing-extensions==3.7.4.3
     # via mypy
 virtualenv==20.4.2

requirements/test.txt

@@ -4,11 +4,12 @@ Brotli==1.0.9
 coverage==5.5
 cryptography==3.3.1; platform_machine!="i686" and python_version<"3.9" # no 32-bit wheels; no python 3.9 wheels yet
 freezegun==1.1.0
-mypy==0.790; implementation_name=="cpython"
+mypy==0.910; implementation_name=="cpython"
 mypy-extensions==0.4.3; implementation_name=="cpython"
 pytest==6.2.2
 pytest-cov==2.12.1
 pytest-mock==3.6.1
 re-assert==1.1.0
 setuptools-git==1.2
 trustme==0.8.0; platform_machine!="i686"    # no 32-bit wheels
+types-chardet==0.1.3

tests/autobahn/client/client.py

@@ -5,7 +5,7 @@
 import aiohttp
 
 
-async def client(url, name):
+async def client(url: str, name: str) -> None:
     async with aiohttp.ClientSession() as session:
         async with session.ws_connect(url + "/getCaseCount") as ws:
             num_tests = int((await ws.receive()).data)
@@ -28,7 +28,7 @@ async def client(url, name):
             print("finally requesting %s" % url)
 
 
-async def run(url, name):
+async def run(url: str, name: str) -> None:
     try:
         await client(url, name)
     except Exception:

tests/autobahn/server/server.py

@@ -5,11 +5,11 @@
 from aiohttp import WSCloseCode, web
 
 
-async def wshandler(request):
+async def wshandler(request: web.Request) -> web.WebSocketResponse:
     ws = web.WebSocketResponse(autoclose=False)
     is_ws = ws.can_prepare(request)
     if not is_ws:
-        return web.HTTPBadRequest()
+        raise web.HTTPBadRequest()
 
     await ws.prepare(request)
 
@@ -29,7 +29,7 @@ async def wshandler(request):
     return ws
 
 
-async def on_shutdown(app):
+async def on_shutdown(app: web.Application) -> None:
     for ws in set(app["websockets"]):
         await ws.close(code=WSCloseCode.GOING_AWAY, message="Server shutdown")