5.1.0 Extension error (sphinx.ext.napoleon): (exception: pop from an empty deque)

[Zlopez]

Describe the bug

When updating sphinx from 5.0.2 to 5.1.0 following error started happening in sphinx build of Anitya project:

Extension error (sphinx.ext.napoleon):
Handler <function _process_docstring at 0x7fb4a98f60e0> for event 'autodoc-process-docstring' threw an exception (exception: pop from an empty deque)

How to Reproduce

$ git clone https://github.com/fedora-infra/anitya
$ git checkout dependabot/pip/sphinx-5.1.0
$ pip install -r requirements.txt -r test_requirements.txt
$ pip install .
$ cd docs
$ sphinx-build -W -b html  .  _build/html

Expected behavior

Documentation is build

Your project

https://github.com/fedora-infra/anitya

Screenshots

No response

OS

Linux

Python version

3.10.5

Sphinx version

5.1.0

Sphinx extensions

sphinx.ext.napoleon

Extra tools

No response

Additional context

No response

[mwichmann]

The always helpful "me too" (from https://github.com/SCons/scons). Identical exception msg.

[vfazio]

Same, our project is now running into this.

[app] emitting event: 'build-finished'(ExtensionError("Handler <function _process_docstring at 0x7f6c5942cd30> for event 'autodoc-process-

Traceback (most recent call last):
  File "/home/vfazio/.pyenv/versions/3.10.4/envs/xtf-3.10.4/lib/python3.10/site-packages/sphinx/events.py", line 94, in emit
    results.append(listener.handler(self.app, *args))
  File "/home/vfazio/.pyenv/versions/3.10.4/envs/xtf-3.10.4/lib/python3.10/site-packages/sphinx/ext/napoleon/__init__.py", line 385, in _process_docstring
    docstring = NumpyDocstring(result_lines, app.config, app, what, name,
  File "/home/vfazio/.pyenv/versions/3.10.4/envs/xtf-3.10.4/lib/python3.10/site-packages/sphinx/ext/napoleon/docstring.py", line 1148, in __init__
    super().__init__(docstring, config, app, what, name, obj, options)
  File "/home/vfazio/.pyenv/versions/3.10.4/envs/xtf-3.10.4/lib/python3.10/site-packages/sphinx/ext/napoleon/docstring.py", line 214, in __init__
    self._parse()
  File "/home/vfazio/.pyenv/versions/3.10.4/envs/xtf-3.10.4/lib/python3.10/site-packages/sphinx/ext/napoleon/docstring.py", line 595, in _parse
    res = self._parse_attribute_docstring()
  File "/home/vfazio/.pyenv/versions/3.10.4/envs/xtf-3.10.4/lib/python3.10/site-packages/sphinx/ext/napoleon/docstring.py", line 627, in _parse_attribute_docstring
    _type, _desc = self._consume_inline_attribute()
  File "/home/vfazio/.pyenv/versions/3.10.4/envs/xtf-3.10.4/lib/python3.10/site-packages/sphinx/ext/napoleon/docstring.py", line 304, in _consume_inline_attribute
    line = self._lines.popleft()
IndexError: pop from an empty deque

[vfazio]

probably dupe of #10701 caused by #9856

[AA-Turner]

Duplicates #10701

[AA-Turner]

I plan to release 5.1.1 tomorrow, details in #10710. Please test the 5.1.x branch as soon as possible, as set out in #10710.

A

[anoopks12]

Working fine in Sphinx 5.1.1