TypeError: unsupported operand type(s) for /: 'str' and 'str'

[ericwb]

Describe the bug

Running the sphinx-build with the -b json argument results in an exception. If I take away the json argument, it compiles fine.

As shown below, the exception is coming out of sphinx internally.

Running Sphinx v7.1.2
building [mo]: targets for 0 po files that are out of date
writing output... 
building [json]: targets for 42 source files that are out of date
updating environment: [new config] 42 added, 0 changed, 0 removed
reading sources... [100%] rules/python/third_party/index
looking for now-outdated files... none found
pickling environment... done
/Users/ericwb/workspace/precli/docs/source/man/precli.rst: WARNING: document isn't included in any toctree
checking consistency... done
preparing documents... done
copying assets... copying static files... done
copying extra files... done
done
writing output... [100%] rules/python/third_party/index
generating indices... genindex py-modindex done
highlighting module code... 
writing additional pages... search done

Exception occurred:
  File "/Users/ericwb/workspace/precli/.tox/docs/lib/python3.11/site-packages/sphinxcontrib/serializinghtml/__init__.py", line 105, in handle_finish
    outfilename = self.outdir / self.globalcontext_filename
                  ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
TypeError: unsupported operand type(s) for /: 'str' and 'str'
The full traceback has been saved in /var/folders/m3/_cy_9dfx73107r3w_zhnsd700000gn/T/sphinx-err-corq7276.log, if you want to report the issue to the developers.
Please also report this if it was a user error, so that a better error message can be provided next time.
A bug report can be filed in the tracker at <https://github.com/sphinx-doc/sphinx/issues>. Thanks!
docs: exit 2 (1.27 seconds) /Users/ericwb/workspace/precli> sphinx-build -b json docs/source docs/build pid=86055
.pkg: _exit> python /Users/ericwb/.pyenv/versions/3.11.4/lib/python3.11/site-packages/pyproject_api/_backend.py True setuptools.build_meta __legacy__
  docs: FAIL code 2 (10.15=setup[8.87]+cmd[1.27] seconds)
  evaluation failed :( (10.21 seconds)

How to Reproduce

sphinx-build -b json docs/source docs/build

Environment Information

Platform:              darwin; (macOS-13.4-arm64-arm-64bit)
Python version:        3.11.4 (main, Jun 17 2023, 15:03:18) [Clang 14.0.3 (clang-1403.0.22.14.1)])
Python implementation: CPython
Sphinx version:        7.1.2
Docutils version:      0.20.1
Jinja2 version:        3.1.2
Pygments version:      2.

Sphinx extensions

[
    "sphinx.ext.autodoc",
    "sphinx.ext.doctest",
    "sphinx.ext.coverage",
    "sphinx.ext.viewcode",
    "sphinx_copybutton",
]

Additional context

No response

[picnixz]

Thank you for the report. @AA-Turner, I think you forgot one place to fix.

[carltongibson]

I can confirm this. It looks like a blocker for #11583, I think? 🤔

[AA-Turner]

Fixed in sphinxcontrib-serializinghtml 1.1.8.

A

[carltongibson]

@AA-Turner hero! Thank you.