Add flake config file for pre-commit

Author: baominghelly

.flake8

@@ -0,0 +1,34 @@
+[flake8]
+# Python version target
+python-version = 3.10
+
+# Maximum line length (matches black's default, but we allow longer for URLs/paths)
+max-line-length = 127
+
+# Select only critical errors that would cause runtime issues
+# E9: Runtime errors (e.g., IndentationError, SyntaxError)
+# F63: Placeholder for assertions in pytests
+# F7: Various errors (e.g., two starred expressions in assignment)
+# F82: Undefined names
+select = E9,F63,F7,F82
+
+# Ignore specific error codes
+# E203: Whitespace before ':' (conflicts with black)
+# W503: Line break before binary operator (conflicts with black)
+extend-ignore = E203,W503
+
+# Directories to exclude from linting
+exclude =
+    .git,
+    __pycache__,
+    .venv,
+    venv,
+    build,
+    dist,
+    *.egg-info
+
+# Show source code for each error
+show-source = true
+
+# Show statistics (number of each type of error)
+statistics = true

.pre-commit-config.yaml

@@ -9,4 +9,6 @@ repos:
     rev: 6.1.0
     hooks:
     -   id: flake8
-        args: ['--exit-zero', '--show-source', '--statistics']  # Show all warnings with details
+        # Use .flake8 for configuration (separate file to avoid TOML parsing issues)
+        # --exit-zero: show warnings but don't fail pre-commit
+        args: ['--config', '.flake8', '--exit-zero']

pyproject.toml

@@ -28,15 +28,6 @@ exclude = '''
 )/
 '''
 
-[tool.flake8]
-python-version = '3.10'
-max-line-length = 127
-select = ['E9', 'F63', 'F7', 'F82']
-extend-ignore = ['E203', 'W503']
-exclude = ['.git', '__pycache__', '.venv', 'venv', 'build', 'dist', '*.egg-info']
-show-source = true
-statistics = true
-
 [tool.pytest.ini_options]
 testpaths = ["tests"]
 python_files = ["test_*.py"]