Duplicity ImportError: bad magic number in 'six': b'\x03\xf3\r\n'

Traceback (most recent call last):
  File "/usr/bin/duplicity", line 39, in <module>
    import fasteners
  File "/home/visualblind/.local/lib/python3.8/site-packages/fasteners/__init__.py", line 23, in <module>
    from fasteners.lock import locked  # noqa
  File "/home/visualblind/.local/lib/python3.8/site-packages/fasteners/lock.py", line 24, in <module>
    from fasteners import _utils
  File "/home/visualblind/.local/lib/python3.8/site-packages/fasteners/_utils.py", line 37, in <module>
    import six
ImportError: bad magic number in 'six': b'\x03\xf3\r\n'
Error in sys.excepthook:
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/apport_python_hook.py", line 72, in apport_excepthook
    from apport.fileutils import likely_packaged, get_recent_crashes
  File "/usr/lib/python3/dist-packages/apport/__init__.py", line 5, in <module>
    from apport.report import Report
  File "/usr/lib/python3/dist-packages/apport/report.py", line 32, in <module>
    import apport.fileutils
  File "/usr/lib/python3/dist-packages/apport/fileutils.py", line 12, in <module>
    import os, glob, subprocess, os.path, time, pwd, sys, requests_unixsocket
  File "/usr/lib/python3/dist-packages/requests_unixsocket/__init__.py", line 1, in <module>
    import requests
  File "/usr/lib/python3/dist-packages/requests/__init__.py", line 43, in <module>
    import urllib3
  File "/usr/lib/python3/dist-packages/urllib3/__init__.py", line 7, in <module>
    from .connectionpool import HTTPConnectionPool, HTTPSConnectionPool, connection_from_url
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 11, in <module>
    from .exceptions import (
  File "/usr/lib/python3/dist-packages/urllib3/exceptions.py", line 2, in <module>
    from six.moves.http_client import IncompleteRead as httplib_IncompleteRead
ImportError: bad magic number in 'six': b'\x03\xf3\r\n'

Original exception was:
Traceback (most recent call last):
  File "/usr/bin/duplicity", line 39, in <module>
    import fasteners
  File "/home/visualblind/.local/lib/python3.8/site-packages/fasteners/__init__.py", line 23, in <module>
    from fasteners.lock import locked  # noqa
  File "/home/visualblind/.local/lib/python3.8/site-packages/fasteners/lock.py", line 24, in <module>
    from fasteners import _utils
  File "/home/visualblind/.local/lib/python3.8/site-packages/fasteners/_utils.py", line 37, in <module>
    import six
ImportError: bad magic number in 'six': b'\x03\xf3\r\n'

Resolution:

sudo rm /usr/bin/six.pyc