Youtube-DL python package overriding OS file unlock method

[FabianNiehaus]

Checklist

• I'm reporting a broken site support issue
• I've verified that I'm running youtube-dl version 2019.06.27
• I've checked that all provided URLs are alive and playable in a browser
• I've checked that all URLs and arguments with special characters are properly quoted or escaped
• I've searched the bugtracker for similar bug reports including closed ones
• I've read bugs section in FAQ

Verbose log

As this is not an issue with youtube-dl's functionality itself, but rather it's interaction with another package, there is no log to be provided.

The following error is thrown when trying to store a file using the Django Framework while the youtube_dl package is installed:

Internal Server Error: /
Traceback (most recent call last):
  File "<<Project base directory removed for privacy>>\venv\lib\site-packages\django\core\files\move.py", line 61, in file_move_safe
    locks.lock(fd, locks.LOCK_EX)
  File "<<Project base directory removed for privacy>>\venv\lib\site-packages\django\core\files\locks.py", line 80, in lock
    ret = LockFileEx(hfile, flags, 0, 0, 0xFFFF0000, byref(overlapped))
ctypes.ArgumentError: argument 6: <class 'TypeError'>: expected LP_OVERLAPPED instance instead of pointer to OVERLAPPED

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<<Project base directory removed for privacy>>\venv\lib\site-packages\django\core\handlers\exception.py", line 34, in inner
    response = get_response(request)
  File "<<Project base directory removed for privacy>>\venv\lib\site-packages\django\core\handlers\base.py", line 115, in _get_response
    response = self.process_exception_by_middleware(e, request)
  File "<<Project base directory removed for privacy>>\venv\lib\site-packages\django\core\handlers\base.py", line 113, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "<<Project base directory removed for privacy>>\GenreClassificationWeb\webClassification\views.py", line 29, in upload
    name = fs.save(uploaded_file.name, uploaded_file)
  File "<<Project base directory removed for privacy>>\venv\lib\site-packages\django\core\files\storage.py", line 52, in save
    return self._save(name, content)
  File "<<Project base directory removed for privacy>>\venv\lib\site-packages\django\core\files\storage.py", line 261, in _save
    file_move_safe(content.temporary_file_path(), full_path)
  File "<<Project base directory removed for privacy>>\venv\lib\site-packages\django\core\files\move.py", line 67, in file_move_safe
    locks.unlock(fd)
  File " <<Project Directory>>\venv\lib\site-packages\django\core\files\locks.py", line 86, in unlock
    ret = UnlockFileEx(hfile, 0, 0, 0xFFFF0000, byref(overlapped))
ctypes.ArgumentError: argument 5: <class 'TypeError'>: expected LP_OVERLAPPED instance instead of pointer to OVERLAPPED

Description

When trying to store a file using the FileSystemStorage.save() method in the Django Framework, the afromentioned exceptions is thrown upon unlocking the newly stored file using the OS unlock function in locks.py.

Removing the youtube_dl package does immediately resolve this issue. Sadly, youtube-dl is necessary for this project due to a lack of working cross-platform alternatives.

This issue has been recreated with a Windows 10 and a Windows 7 machine using different VENVs.

I do believe this is a bug and have cross-posted a ticket with the Django Project (https://code.djangoproject.com/ticket/30603)

[baldoarturo]

I can confirm this happens only on windows systems

[Motiph]

any solution for this?

still happening in windows 10 with django 3

[shadowstriker15]

Yeah, having this issue as well...