PurePath.relative_to() fails in 3.6

[DeaD_EyE]

I know this. This is s****

You have to use os.path.relpath.

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In [1]: import os                                                                                                                       

In [2]: os.path.relpath('/home/andre/test', '/etc/systemd/system/')                                                                     
Out[2]: '../../../home/andre/test'

In [3]:                                                                                                                                 

In [3]: os.path.relpath('/etc/systemd/system/', '/home/andre/test')                                                                     
Out[3]: '../../../etc/systemd/system'

In [4]: os.path.relpath?                                                                                                                
Signature: os.path.relpath(path, start=None)
Docstring: Return a relative version of a path
File:      ~/.pyenv/versions/3.7.4/lib/python3.7/posixpath.py
Type:      function

In [5]: