Re: shutil.rmtree() fails when used in Fedora (rpm) "mock" environment

c.buhtz@posteo.jp wrote or quoted:

Maybe you have an idea what is the intention behind this error raised by
an "assert" statement inside "shutil.rmtree()".

  Instead of banking on TemporaryDirectory's auto-cleanup, you
  might wanna take a stab at nuking the directory post-test with
  a more bare-bones approach like os.rmdir() or roll your own
  cleanup function.

  Or you could wrap the TemporaryDirectory usage in a try-except
  block to catch and log any hiccups during cleanup, so the
  test can keep truckin' even if that cleanup goes sideways