Enum('red', 'blue', 'green')

This package provides a robust enumerated data type for Python.

>>> color = enum.Enum('red', 'blue', 'green');

>>> color.red > color.blue

False

But has a few other nice things as well. enum.Enum('one').one != enum.Enum('one').one because they are two different enums!

Shelve supports seems to be there, as long as your import enum