New submission from Hugo van Kemenade <hugovk+python@gmail.com>: The docs build on GitHub Actions is passing on `main` but has started failing for the `3.7` - `3.10` branches: ``` Missing the required blurb or sphinx-build tools. Please run 'make venv' to install local copies. make[1]: *** [Makefile:50: build] Error 1 ``` https://github.com/python/cpython/actions/workflows/doc.yml https://github.com/python/cpython/runs/5714593700?check_suite_focus=true This is because the `PATH=./venv/bin:$PATH sphinx-build --version` check is failing: ``` /home/runner/work/cpython/cpython/Doc/venv/lib/python3.10/site-packages/sphinx/util/docutils.py:45: DeprecationWarning: distutils Version classes are deprecated. Use packaging.version instead. __version_info__ = tuple(LooseVersion(docutils.__version__).version) Traceback (most recent call last): File "/home/runner/work/cpython/cpython/Doc/./venv/bin/sphinx-build", line 5, in <module> from sphinx.cmd.build import main File "/home/runner/work/cpython/cpython/Doc/venv/lib/python3.10/site-packages/sphinx/cmd/build.py", line 25, in <module> from sphinx.application import Sphinx File "/home/runner/work/cpython/cpython/Doc/venv/lib/python3.10/site-packages/sphinx/application.py", line 42, in <module> from sphinx.registry import SphinxComponentRegistry File "/home/runner/work/cpython/cpython/Doc/venv/lib/python3.10/site-packages/sphinx/registry.py", line 24, in <module> from sphinx.builders import Builder File "/home/runner/work/cpython/cpython/Doc/venv/lib/python3.10/site-packages/sphinx/builders/__init__.py", line 26, in <module> from sphinx.util import import_object, logging, rst, progress_message, status_iterator File "/home/runner/work/cpython/cpython/Doc/venv/lib/python3.10/site-packages/sphinx/util/rst.py", line 22, in <module> from jinja2 import environmentfilter ImportError: cannot import name 'environmentfilter' from 'jinja2' (/home/runner/work/cpython/cpython/Doc/venv/lib/python3.10/site-packages/jinja2/__init__.py) ``` This is because `3.10` and `3.9` are still using old versions of Sphinx (3.2.1 and 2.4.4 respectively) which is incompatible with the newest Jinja2: https://github.com/pallets/jinja/issues/1630 `main` is using a newer Sphinx (4.2.0), so it passes. Bumping to Sphinx 4.5.0 will fix both `3.9` and `3.10`. `3.7` and `3.8` are affected too. We can bump `main` to use `4.5.0` as well. ---------- assignee: docs@python components: Documentation messages: 416149 nosy: docs@python, hugovk priority: normal severity: normal status: open title: Bump Sphinx to fix docs build versions: Python 3.10, Python 3.11, Python 3.7, Python 3.8, Python 3.9 _______________________________________ Python tracker <report@bugs.python.org> <https://bugs.python.org/issue47138> _______________________________________