Failure to remove directory when using retronas and MiSTer

[jonasrosland]

I opened an issue for this over in the retronas repo, but it might be better suited here.

Copy/paste from the original issue:

---

Hi!

Just getting started with retronas, and connected my MiSTer setup to it over CIFS.
When I run downloader.sh, it tries to remove the empty folder for ATARI2600, but ends up failing:

Deleting empty folder /media/fat/games/ATARI2600
Traceback (most recent call last):
  File "/tmp/dont_download.zip/downloader/main.py", line 37, in main
    exit_code = execute_full_run(
  File "/tmp/dont_download.zip/downloader/main.py", line 57, in execute_full_run
    exit_code = runner.full_run()
  File "/tmp/dont_download.zip/downloader/full_run_service.py", line 59, in full_run
    result = self._full_run_impl()
  File "/tmp/dont_download.zip/downloader/full_run_service.py", line 121, in _full_run_impl
    self._online_importer.download_dbs_contents(importer_command, full_resync)
  File "/tmp/dont_download.zip/downloader/online_importer.py", line 108, in download_dbs_contents
    self._remove_folders(importer_command)
  File "/tmp/dont_download.zip/downloader/online_importer.py", line 210, in _remove_folders
    system_file_system.remove_folder(full_folder_path)
  File "/tmp/dont_download.zip/downloader/file_system.py", line 239, in remove_folder
    os.rmdir(self._path(path))
NotADirectoryError: [Errno 20] Not a directory: '/media/fat/games/ATARI2600'

This makes the rest of the update/download fail as well.
Creating an empty file in the ATARI2600 folder removes this failure point.

[theypsilon]

Hey! I introduced some change related to this. Could you please try again now?

[theypsilon]

Considering it fixed. Please reopen if you anybody still sees this problem.