Python Coding Standards (PEP 8)

When reviewing or generating Python code, follow these rules:

File Naming

• Source files: Use snake_case (e.g., user_service.py, api_client.py)
• Package directories: Use snake_case (e.g., data_processing/, utils/)
• Test files: Use test_ prefix (e.g., test_user_service.py)
• Config files: Use snake_case (e.g., config_settings.py)

Variable Naming

• Variables: snake_case (e.g., user_name, is_active, total_count)
• Constants: UPPER_SNAKE_CASE (e.g., MAX_RETRIES, API_BASE_URL)
• Boolean variables: Prefix with is_, has_, can_, should_ (e.g., is_loading, has_error)
• Protected variables: Single underscore prefix (e.g., _internal_data)
• Private variables: Double underscore prefix (e.g., __private_data)