PEP 440

A simple package with utils to check whether versions number match Pep 440

Example:

>>> from pep440 import is_canonical
>>> is_canonical('4.1.0')
True

>>> is_canonical('4.2.1.beta2')  # 4.2.1b2 is correct
False

For a bigger dependencies with more utilities see PyPA Packaging (version submodule)