38 – Global enumeration members

38 – Global enumeration members#

The module enum has a lot of little-known useful tools. For example, you can use the decorator enum.global_enum to automatically export your enumeration members to the global namespace of your module.

This means that you can access enumeration members as re.MULTILINE instead of re.RegexFlag.MULTILINE (yup, the module re uses this!).

The decorator global_enum can be used on all types of enumerations; the snippet below applies it to a flag enumeration:

from enum import Flag, auto, global_enum

@global_enum
class FilePermissions(Flag):
    READ = auto()
    WRITE = auto()
    EXECUTE = auto()

After defining the enumeration, enumeration members can be used as if they were globals:

BASE_PERMISSIONS = READ | WRITE

Accessing members through the enumeration class still works, though.