Get AppData Folder Path

Description

The get_appdata_folder_path function determines the appropriate application data folder path for a given app, depending on the operating system. It ensures the directory exists by creating it if necessary, and returns the full path.

Function Signature:

def get_appdata_folder_path(app_name: str, base_folder_path: str = '') -> str:

Parameters

• app_name (str): The name of the application. Used to create a subdirectory for app-specific data.
• base_folder_path (str, optional): A custom base path for Unix-like systems. If omitted, defaults to the user's home directory.

Returns

• str: The full path to the application's app data folder.

Example Usage

appdata_path = get_appdata_folder_path("MyCoolApp")
print(f"App data path: {appdata_path}")

Platform Behavior

• Windows:
  • The path is constructed using the AppData\Roaming directory for the current user:

    C:\Users\{Username}\AppData\Roaming\{AppName}
• Linux/macOS:
  • If base_folder_path is provided:

    {base_folder_path}/.appdata/{app_name}
  • Otherwise:

    ~/.appdata/{app_name}

Notes

• The function uses os.getlogin() to determine the current user on Windows.
• The folder is automatically created if it doesn't already exist.

Error Handling

• If directory creation fails, an exception will be raised by os.makedirs().