lint: Replace Flake8 with Ruff.

Signed-off-by: Anders Kaseorg <[email protected]>

Author: andersk

.flake8

@@ -91,3 +91,9 @@ pythonpath = [
     "zulip_bots",
     "zulip_botserver",
 ]
+
+[tool.ruff]
+ignore = [
+    "E402", # Module level import not at top of file
+    "E731", # Do not assign a `lambda` expression, use a `def`
+]

pyproject.toml

@@ -2,10 +2,10 @@ crayons
 twine
 black~=23.10.1
 isort
-flake8
 mock
 pytest
 pytest-cov
+ruff~=0.1.3
 -e ./zulip
 -e ./zulip_bots
 -e ./zulip_botserver

requirements.txt

@@ -33,7 +33,7 @@ def run() -> None:
         description="Static type checker for Python (config: mypy.ini)",
     )
     linter_config.external_linter(
-        "flake8", ["flake8"], ["py"], description="Standard Python linter (config: .flake8)"
+        "ruff", ["ruff", "check", "--quiet"], ["py"], fix_arg="--fix", description="Python linter"
     )
     linter_config.external_linter(
         "gitlint", ["tools/lint-commits"], description="Git Lint for commit messages"

tools/lint

@@ -145,7 +145,7 @@ def check_take_mode(response, topic_name, merels_storage):
     :param merels_storage: Merels' storage
     :return: None
     """
-    if not ("Failed" in response):
+    if "Failed" not in response:
         if mechanics.can_take_mode(topic_name, merels_storage):
             mechanics.update_toggle_take_mode(topic_name, merels_storage)
         else: