Linkcheck crashes in 3.4.0 #8565
Description
Describe the bug
When running linkcheck in Weblate docs, it crashes with:
Exception in thread Thread-2:
Traceback (most recent call last):
File "/opt/hostedtoolcache/Python/3.8.6/x64/lib/python3.8/threading.py", line 932, in _bootstrap_inner
Exception occurred:
self.run()
File "/opt/hostedtoolcache/Python/3.8.6/x64/lib/python3.8/threading.py", line 870, in run
self._target(*self._args, **self._kwargs)
File "/opt/hostedtoolcache/Python/3.8.6/x64/lib/python3.8/site-packages/sphinx/builders/linkcheck.py", line 298, in check_thread
self.wqueue.task_done()
File "/opt/hostedtoolcache/Python/3.8.6/x64/lib/python3.8/queue.py", line 74, in task_done
Error: raise ValueError('task_done() called too many times')
ValueError: task_done() called too many times
File "/opt/hostedtoolcache/Python/3.8.6/x64/lib/python3.8/queue.py", line 233, in _put
heappush(self.queue, item)
TypeError: '<' not supported between instances of 'int' and 'NoneType'
To Reproduce
Steps to reproduce the behavior:
<Paste your command-line here which cause the problem>
$ git clone https://github.com/WeblateOrg/weblate.git
$ cd weblate
$ pip install -r docs/requirements.txt
$ cd docs
$ make linkcheck
Expected behavior
No crash :-)
Your project
https://github.com/WeblateOrg/weblate/tree/master/docs
Screenshots
CI failure: https://github.com/WeblateOrg/weblate/runs/1585580811?check_suite_focus=true
Environment info
- OS: Linux
- Python version: 3.8.6
- Sphinx version: 3.4.0
- Sphinx extensions: several, but should not be relevant here
- Extra tools: none involved
Additional context
Add any other context about the problem here.
- [e.g. URL or Ticket]