How to get an absolute file path in Python

Question

Given a path such as \"mydir/myfile.txt\", how do I find the file\'s absolute path relative to the current working directory in Python? E.g. on Windows, I might

Answer 1

>>> import os
>>> os.path.abspath("mydir/myfile.txt")
'C:/example/cwd/mydir/myfile.txt'

Also works if it is already an absolute path:

>>> import os
>>> os.path.abspath("C:/example/cwd/mydir/myfile.txt")
'C:/example/cwd/mydir/myfile.txt'