mutapath.Path.with_suffix

Path.with_suffix(suffix)

Return a new path with the file suffix changed (or added, if none)

>>> Path('/home/guido/python.tar.gz').with_suffix(".foo")
Path('/home/guido/python.tar.foo')

>>> Path('python').with_suffix('.zip')
Path('python.zip')

>>> Path('filename.ext').with_suffix('zip')
Traceback (most recent call last):
...
ValueError: Invalid suffix 'zip'