chore: replace flake8 with ruff

examples/asgilook/asgilook/cache.py

@@ -1,6 +1,4 @@
 import msgpack
-import redis.asyncio as redis
-
 
 class RedisCache:
     PREFIX = 'asgilook:'

falcon/app.py

@@ -63,7 +63,7 @@
 
 
 class App:
-    """This class is the main entry point into a Falcon-based WSGI app.
+    """The main entry point into a Falcon-based WSGI app.
 
     Each App instance provides a callable
     `WSGI <https://www.python.org/dev/peps/pep-3333/>`_ interface
@@ -1152,8 +1152,7 @@ def _update_sink_and_static_routes(self):
 # TODO(myusko): This class is a compatibility alias, and should be removed
 # in the next major release (4.0).
 class API(App):
-    """
-    This class is a compatibility alias of :class:`falcon.App`.
+    """Compatibility alias of :class:`falcon.App`.
 
     ``API`` was renamed to :class:`App <falcon.App>` in Falcon 3.0 in order to
     reflect the breadth of applications that :class:`App <falcon.App>`, and its

falcon/asgi/app.py

@@ -67,7 +67,7 @@
 
 
 class App(falcon.app.App):
-    """This class is the main entry point into a Falcon-based ASGI app.
+    """The main entry point into a Falcon-based ASGI app.
 
     Each App instance provides a callable
     `ASGI <https://asgi.readthedocs.io/en/latest/>`_ interface

falcon/asgi/ws.py

@@ -635,13 +635,13 @@ async def receive(self):
         # NOTE(kgriffs): Wait for a message if none are available. This pattern
         #   was borrowed from the websockets.protocol module.
         while not self._messages:
-            # -------------------------------------------------------------------------------------
+            # --------------------------------------------------------------------------
             # NOTE(kgriffs): The pattern below was borrowed from the websockets.protocol
             #   module under the BSD 3-Clause "New" or "Revised" License.
             #
             #   Ref: https://github.com/aaugustin/websockets/blob/master/src/websockets/protocol.py  # noqa E501
             #
-            # -------------------------------------------------------------------------------------
+            # --------------------------------------------------------------------------
 
             # PERF(kgriffs): Using a bare future like this seems to be
             #   slightly more efficient vs. something like asyncio.Event
@@ -683,13 +683,13 @@ async def _pump(self):
                     'code', WSCloseCode.NORMAL
                 )
 
-            # -------------------------------------------------------------------------------------
+            # --------------------------------------------------------------------------
             # NOTE(kgriffs): The pattern below was borrowed from the websockets.protocol
             #   module under the BSD 3-Clause "New" or "Revised" License.
             #
             #   Ref: https://github.com/aaugustin/websockets/blob/master/src/websockets/protocol.py # noqa E501
             #
-            # -------------------------------------------------------------------------------------
+            # --------------------------------------------------------------------------
             while len(self._messages) >= self._max_queue:
                 self._put_message_waiter = self._loop.create_future()
                 try:

falcon/bench/dj/dj/settings.py

@@ -1,5 +1,4 @@
-"""
-Django settings for dj project.
+"""Django settings for dj project.
 
 Generated by 'django-admin startproject' using Django 1.11.3.
 

falcon/bench/dj/dj/wsgi.py

@@ -1,5 +1,4 @@
-"""
-WSGI config for dj project.
+"""WSGI config for dj project.
 
 It exposes the WSGI callable as a module-level variable named ``application``.
 

falcon/cmd/inspect_app.py

@@ -12,9 +12,7 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-"""
-Script that prints out the routes of an App instance.
-"""
+"""Script that prints out the routes of an App instance."""
 
 import argparse
 import importlib

falcon/util/structures.py

@@ -45,8 +45,7 @@
 # TODO(kgriffs): If we ever diverge from what is upstream in Requests,
 # then we will need write tests and remove the "no cover" pragma.
 class CaseInsensitiveDict(MutableMapping):  # pragma: no cover
-    """
-    A case-insensitive ``dict``-like object.
+    """A case-insensitive ``dict``-like object.
 
     Implements all methods and operations of
     ``collections.abc.MutableMapping`` as well as dict's `copy`. Also
@@ -121,8 +120,7 @@ def __repr__(self) -> str:
 #   Context is, by design, a bare class, and the mapping interface may be
 #   removed in a future Falcon release.
 class Context:
-    """
-    Convenience class to hold contextual information in its attributes.
+    """Convenience class to hold contextual information in its attributes.
 
     This class is used as the default :class:`~.Request` and :class:`~Response`
     context type (see

pyproject.toml

@@ -94,6 +94,42 @@
     format.quote-style = "single"
     line-length = 88
     extend-exclude = ["falcon/vendor"]
+    builtins = [
+        "ignore",
+        "attr",
+        "defined",
+    ]
+    exclude = [
+        ".ecosystem",
+        ".eggs",
+        ".git",
+        ".tox",
+        ".venv",
+        "build",
+        "dist",
+        "docs",
+        "examples",
+        "falcon/bench/nuts",
+    ]
+
+[tool.ruff.lint]
+    ignore = ["F403"]
+    select = [
+        "C9",
+        "E",
+        "F",
+        "W",
+    ]
+
+[tool.ruff.lint.mccabe]
+    max-complexity = 15
+
+[tool.ruff.lint.per-file-ignores]
+    "**/__init__.py" = [
+        "F401",
+        "E402",
+    ]
+    "falcon/uri.py" = ["F401"]
 
 [tool.pytest.ini_options]
 filterwarnings = [

tox.ini

@@ -264,10 +264,8 @@ commands = {[smoke-test]commands}
 # --------------------------------------------------------------------
 
 [testenv:pep8]
-deps = flake8
-       flake8-quotes
-       flake8-import-order
-commands = flake8 []
+deps = ruff
+commands = ruff check []
 
 [testenv:ruff]
 deps = ruff>=0.3.7
@@ -280,29 +278,15 @@ skip_install = True
 commands = ruff format . []
 
 [testenv:pep8-docstrings]
-deps = flake8
-       flake8-docstrings
-basepython = python3.10
-commands = flake8 \
-             --docstring-convention=pep257 \
+deps = ruff
+commands = ruff check \
              --exclude=.ecosystem,.eggs,.git,.tox,.venv,build,dist,docs,examples,tests,falcon/vendor,falcon/bench/nuts \
              --select=D205,D212,D400,D401,D403,D404 \
              []
 
 [testenv:pep8-examples]
-deps = flake8
-       flake8-quotes
-       flake8-import-order
-
-basepython = python3.10
-
-commands = flake8 examples \
-             --max-complexity=12 \
-             --ignore=F403,W503,W504 \
-             --max-line-length=99 \
-             --import-order-style=google \
-             --application-import-names=asgilook,look \
-             []
+deps = ruff
+commands = ruff check examples --line-length=99 []
 
 # --------------------------------------------------------------------
 # For viewing environ dicts generated by various WSGI servers