$ ./pants repl src/python/pants/version.py
Python 3.7.7 (default, May 13 2020, 16:40:14)
[Clang 11.0.3 (clang-1103.0.32.59)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
(InteractiveConsole)
>>> from packaging.version import Version
>>> Version('2.0.0.dev9') < Version('2.0.0alpha0')
True
>>> Version('2.0.0alpha0') < Version('2.0.0rc0')
True
>>> Version('2.0.0rc0') < Version('2.0.0')
True
>>>