#30603: Stored file locking issue when using Django on Windows with the
youtube_dl
package installed
-------------------------------------+-------------------------------------
Reporter: ManicEatsWorld | Owner: nobody
Type: Bug | Status: new
Component: File | Version: 2.2
uploads/storage |
Severity: Normal | Resolution:
Keywords: | Triage Stage:
| Unreviewed
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
-------------------------------------+-------------------------------------
Description changed by ManicEatsWorld:
Old description:
> When using the FileSystemStorage.save() functions in a Windows
> installation of Django with the [https://github.com/ytdl-org/youtube-dl/
> youtube_dl] package installed, an error is thrown in locks.py upon trying
> to unlock the newly stored file:
>
> {{{
> #!div style="font-size: 80%"
> {{{#!python
> 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
> }}}
> }}}
>
> 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 will cross-post an issue at the youtube-dl
> [https://github.com/ytdl-org/youtube-dl/issues/ issue page].
New description:
When using the FileSystemStorage.save() functions in a Windows
installation of Django with the [https://github.com/ytdl-org/youtube-dl/
youtube_dl] package installed, an error is thrown in locks.py upon trying
to unlock the newly stored file:
{{{
#!div style="font-size: 80%"
{{{#!python
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
}}}
}}}
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 an issue at the youtube-
dl issue page: https://github.com/ytdl-org/youtube-dl/issues/21545.
--
--
Ticket URL: <https://code.djangoproject.com/ticket/30603#comment:2>
Django <https://code.djangoproject.com/>
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