Module name snake_case (ARCH2010)

Key python.naming.module-name-snakecase · Severity info · Category naming

Python module and package names should be short, all-lowercase, and use underscores if needed (lower_snake). CamelCase or hyphenated module names violate PEP-8 and make imports inconsistent.

Incorrect

# UserService.py  or  user-service.py
def create_user(name):
    ...

Correct

user_service.py

def create_user(name):
    ...

Fix

Rename module files to lower_snake_case (e.g. UserService.py → user_service.py).