linting: update black and mypy with strict checking

example/synchronous_client.py

@@ -88,13 +88,13 @@ def wsproto_demo(host: str, port: int) -> None:
 
 
 def net_send(out_data: bytes, conn: socket.socket) -> None:
-    """ Write pending data from websocket to network. """
+    """Write pending data from websocket to network."""
     print("Sending {} bytes".format(len(out_data)))
     conn.send(out_data)
 
 
 def net_recv(ws: WSConnection, conn: socket.socket) -> None:
-    """ Read pending data from network into websocket. """
+    """Read pending data from network into websocket."""
     in_data = conn.recv(RECEIVE_BYTES)
     if not in_data:
         # A receive of zero bytes indicates the TCP socket has been closed. We

setup.cfg

@@ -33,25 +33,9 @@ no_lines_before=LOCALFOLDER
 order_by_type=False
 
 [mypy]
-check_untyped_defs = True
-disallow_any_decorated = True
-disallow_any_explicit = True
-# disallow_any_expr = True
-disallow_any_generics = True
-# disallow_any_unimported = True
-disallow_incomplete_defs = True
-disallow_subclassing_any = True
-disallow_untyped_calls = True
-disallow_untyped_decorators = True
-disallow_untyped_defs = True
-implicit_reexport = False
-no_implicit_optional = True
-show_error_codes = True
-strict_equality = True
-strict_optional = True
-warn_redundant_casts = True
-# warn_return_any = True
-warn_unused_configs = True
-warn_unused_ignores = True
+strict = true
+warn_unused_configs = true
+show_error_codes = true
+
 [mypy-h11.*]
 ignore_missing_imports = True

src/wsproto/connection.py

@@ -43,7 +43,7 @@ class ConnectionState(Enum):
 
 
 class ConnectionType(Enum):
-    """ An enumeration of connection types. """
+    """An enumeration of connection types."""
 
     #: This connection will act as client and talk to a remote server
     CLIENT = 1

src/wsproto/events.py

@@ -182,7 +182,7 @@ class CloseConnection(Event):
     reason: Optional[str] = None
 
     def response(self) -> "CloseConnection":
-        """ Generate an RFC-compliant close frame to send back to the peer. """
+        """Generate an RFC-compliant close frame to send back to the peer."""
         return CloseConnection(code=self.code, reason=self.reason)
 
 
@@ -276,7 +276,7 @@ class Ping(Event):
     payload: bytes = b""
 
     def response(self) -> "Pong":
-        """ Generate an RFC-compliant :class:`Pong` response to this ping. """
+        """Generate an RFC-compliant :class:`Pong` response to this ping."""
         return Pong(payload=self.payload)
 
 

src/wsproto/handshake.py

@@ -286,7 +286,7 @@ def _accept(self, event: AcceptConnection) -> bytes:
             event.extensions,
         )
         self._state = ConnectionState.OPEN
-        return self._h11_connection.send(response)
+        return self._h11_connection.send(response)  # type: ignore[no-any-return]
 
     def _reject(self, event: RejectConnection) -> bytes:
         if self.state != ConnectionState.CONNECTING:
@@ -303,7 +303,7 @@ def _reject(self, event: RejectConnection) -> bytes:
         if not event.has_body:
             data += self._h11_connection.send(h11.EndOfMessage())
             self._state = ConnectionState.CLOSED
-        return data
+        return data  # type: ignore[no-any-return]
 
     def _send_reject_data(self, event: RejectData) -> bytes:
         if self.state != ConnectionState.REJECTING:
@@ -315,7 +315,7 @@ def _send_reject_data(self, event: RejectData) -> bytes:
         if event.body_finished:
             data += self._h11_connection.send(h11.EndOfMessage())
             self._state = ConnectionState.CLOSED
-        return data
+        return data  # type: ignore[no-any-return]
 
     # Client mode methods
 
@@ -360,7 +360,7 @@ def _initiate_connection(self, request: Request) -> bytes:
             target=request.target.encode("ascii"),
             headers=headers + request.extra_headers,
         )
-        return self._h11_connection.send(upgrade)
+        return self._h11_connection.send(upgrade)  # type: ignore[no-any-return]
 
     def _establish_client_connection(
         self, event: h11.InformationalResponse

tox.ini

@@ -26,10 +26,10 @@ commands = pytest {posargs}
 [testenv:lint]
 deps =
     flake8>=3.9.1,<4
-    black==20.8b1
+    black==21.5b2
     isort==5.6.4
-    mypy==0.790
-    pytest==6.1.2
+    mypy==0.902
+    {[testenv]deps}
 commands =
     flake8 src/ test/
     black --check --diff src/ test/ example/ compliance/ bench/