No validation routine for an os.path

[Edward Diener]

Try as I might I can not find a routine in os.path which validates whether
or not a path is syntactically valid, either as a directory or as a file.
This is surprising since, although I know this is OS dependent, Python has
many other classes and functions which will work properly depending on what
OS they are currently running under. Is there such a path validation routine
in any of the libraries distributed with Python or in any other 3rd party
Python libraries ?