python2 python3 messed up : How to fix ?

[hary]

Hi and thanks you for caring for my problem.

Here is the output :

$ python
Python 3.8.5 (default, Jul 28 2020, 12:59:40) 
[GCC 9.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import os, sys
>>> print(sys.path)
['', '/usr/lib/python38.zip', '/usr/lib/python3.8', '/usr/lib/python3.8/lib-dynload', '/home/harold/.local/lib/python3.8/site-packages', '/usr/local/lib/python3.8/dist-packages', '/usr/lib/python3/dist-packages', '/usr/lib/python3.8/dist-packages']
>>> for k, v in os.environ.items():
...     if 'PY' in k:
...         print(k, repr(v))
... 
>>> 
>>>