class_docstr: This class abstracts handling of a project's versions.
  
  A :class:`Version` instance is comparison aware and can be compared and
  sorted using the standard Python interfaces.
  
  >>> v1 = Version("1.0a5")
  >>> v2 = Version("1.0")
  >>> v1
  <Version('1.0a5')>
  >>> v2
  <Version('1.0')>
  >>> v1 < v2
  True
  >>> v1 == v2
  False
  >>> v1 > v2
  False
  >>> v1 >= v2
  False
  >>> v1 <= v2
  True
docstr: The post-release number of the version.
  
  >>> print(Version("1.2.3").post)
  None
  >>> Version("1.2.3.post1").post
  1
docstr_tok: ["The","post-release","number","of","the","version",".",">",">",">","print","(","Version","(","``","1.2.3","''",")",".post",")","None",">",">",">","Version","(","``","1.2.3.post1","''",")",".post","1"]
code: def post(self) -> Optional[int]:
      """The post-release number of the version.
  
      >>> print(Version("1.2.3").post)
      None
      >>> Version("1.2.3.post1").post
      1
      """
      return self._version.post[1] if self._version.post else None
  
imports: import collections
  import itertools
  import re
  from typing import Any, Callable, Optional, SupportsInt, Tuple, Union
  from ._structures import Infinity, InfinityType, NegativeInfinity, NegativeInfinityType
label_desc: Use image node_id 7 for calling the Version obj's underlying member method code with example usage: obj.post() and returns: unknown