import portalocker
from portalocker.exceptions import LockException

file = open('test.lock', 'w+', encoding='utf-8')
portalocker.lock(file, portalocker.LockFlags.NON_BLOCKING)

Traceback (most recent call last):
  File "/home/maste/.local/lib/python3.10/site-packages/portalocker/portalocker.py", line 138, in lock
    fcntl.flock(file_.fileno(), flags)
OSError: [Errno 22] Invalid argument

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/maste/Documents/GitHub/music-caster/src/test.py", line 5, in <module>
    portalocker.lock(file, portalocker.LockFlags.NON_BLOCKING)
  File "/home/maste/.local/lib/python3.10/site-packages/portalocker/portalocker.py", line 142, in lock
    raise exceptions.LockException(exc_value, fh=file_)
portalocker.exceptions.LockException: [Errno 22] Invalid argument