Is there exist in Python built-in entity to represent version?

Question

I need a Python analog for Version from C#. I can't find built-in class for it. Of course, it is better to use built-in, but I can't find 3'rd party library too. Does it exist?
For example, I want to convert line like '4.3.8' to some object to compare with another one.

Answer 1

>>> sys.version
'2.7.11 (v2.7.11:6d1b6a68f775, Dec  5 2015, 20:32:19) [MSC v.1500 32 bit (Intel)]'
>>> sys.version_info
sys.version_info(major=2, minor=7, micro=11, releaselevel='final', serial=0)
>>> sys.winver   # Windows
'2.7-32'
>>> os.uname()   # Unix
>>> win32api.GetVersion()   # Windows
>>> win32api.GetVersionEx() # Windows
>>> sys.version_info >= (2, 6)
True
>>> map(int, '4.3.8'.split('.')) >= [4, 2]
True
>>> map(int, '4.3.8'.split('.')) >= [4, 4]
False
>>> from distutils.version import StrictVersion
>>> StrictVersion("4.3.8") < StrictVersion("4.4")
True

Update: conversion examples added as you extended / modified your question