How to compare versions using python?

Question

Python

Hello. Something I'm already sleepy and can't figure out how to compare strings with program versions. For example, there are lines
s = "1.2.1"
ss = "2.1.2"
How to find out which version is older?

Answer 1

stackoverflow.com/questions/11887762/how-to-compar...
stackoverflow.com/questions/1714027/version-number...

>>> from distutils.version import LooseVersion, StrictVersion
>>> LooseVersion("2.3.1") < LooseVersion("10.1.2")
True
>>> StrictVersion("2.3.1") < StrictVersion("10.1.2")
True
>>> StrictVersion("1.3.a4")
Traceback (most recent call last):
...
ValueError: invalid version number '1.3.a4'