bad_path.py

import os
import winreg
''' find all duplicate and invalid paths in your user account on windows'''

def expand_env_vars(paths: list[str]) -> list[str]:
    return [os.path.expandvars(path) for path in paths]

def find_invalid_paths():
    user_paths, system_paths = get_user_and_system_paths()
    combined_paths = user_paths + system_paths

    invalid_paths = []
    for path in combined_paths:
        if path and not os.path.exists(path):
            if path in user_paths:
                print(f"Invalid path '{path}' found in user-specific environment variables.")
            elif path in system_paths:
                print(f"Invalid path '{path}' found in system-wide environment variables.")
            invalid_paths.append(path)

    if not invalid_paths:
        print("No invalid paths found.")

def find_duplicate_paths():
    user_paths, system_paths = get_user_and_system_paths()
    combined_paths = user_paths + system_paths

    seen_paths = set()
    duplicate_paths = set()
    for path in combined_paths:
        if path and path in seen_paths:
            duplicate_paths.add(path)
        else:
            seen_paths.add(path)

    if duplicate_paths:
        for path in duplicate_paths:
            if path in user_paths and path in system_paths:
                print(f"Duplicate path '{path}' found in both user-specific and system-wide environment variables.")
            elif path in user_paths:
                print(f"Duplicate path '{path}' found in user-specific environment variables.")
            elif path in system_paths:
                print(f"Duplicate path '{path}' found in system-wide environment variables.")
    else:
        print("No duplicate paths found.")

def get_user_and_system_paths() -> tuple[list[str], list[str]]:
    user_paths = []
    user_env_key = winreg.OpenKey(winreg.HKEY_CURRENT_USER, r'Environment')
    try:
        user_path_value, _ = winreg.QueryValueEx(user_env_key, 'Path')
        user_paths = user_path_value.split(os.pathsep)
    except FileNotFoundError:
        pass
    finally:
        winreg.CloseKey(user_env_key)

    system_paths = []
    system_env_key = winreg.OpenKey(winreg.HKEY_LOCAL_MACHINE, r'SYSTEM\CurrentControlSet\Control\Session Manager\Environment')
    try:
        system_path_value, _ = winreg.QueryValueEx(system_env_key, 'Path')
        system_paths = system_path_value.split(os.pathsep)
    except FileNotFoundError:
        pass
    finally:
        winreg.CloseKey(system_env_key)

    user_paths = expand_env_vars(user_paths)
    system_paths = expand_env_vars(system_paths)

    return user_paths, system_paths

# Example usage:
print("Finding invalid paths:")
find_invalid_paths()
print("\nFinding duplicate paths:")
find_duplicate_paths()