Currently we have "sphinx" and "sphinx_rtd_theme" in a single group in pythondeps.toml. This means that mkvenv will try to install them both at once, which doesn't work if sphinx_rtd_theme depends on a version of Sphinx which is newer than the system one, even if the "sphinx" we're installing at the same time would satisfy that dependency. For instance this:
sphinx = { accepted = ">=8.0.0rc1", installed = "8.0.0rc1", canary = "sphinx-build" } sphinx_rtd_theme = { accepted = ">=2.1.0rc1", installed = "2.1.0rc1" } fails like this: mkvenv: Creating non-isolated virtual environment at 'pyvenv' mkvenv: checking for meson>=1.1.0 mkvenv: installing meson==1.2.3 mkvenv: checking for sphinx>=8.0.0rc1 mkvenv: checking for sphinx_rtd_theme>=2.1.0rc1 mkvenv: installing sphinx==8.0.0rc1, sphinx_rtd_theme==2.1.0rc1 ERROR: Cannot install sphinx-rtd-theme==2.1.0rc1 and sphinx==8.0.0rc1 because these package versions have conflicting dependencies. ERROR: ResolutionImpossible: for help visit https://pip.pypa.io/en/latest/topics/dependency-resolution/#dealing-with-dependency-conflicts *** Ouch! *** Could not provide build dependency 'sphinx==8.0.0rc1': • Python package 'sphinx' version '4.3.2' was found, but isn't suitable. • A suitable version could not be obtained from PyPI. (where 4.3.2 is the system version of sphinx on my system). Avoid this problem by splitting sphinx_rtd_theme into its own group in pythondeps, so we can install the new sphinx into the venv first and the sphinx_rtd_theme afterwards. Signed-off-by: Peter Maydell <peter.mayd...@linaro.org> --- I'm just bumbling around in the dark here, hence the RFC tag: maybe there's a better way to fix this? I ran into this when I was trying to test the fix for https://gitlab.com/qemu-project/qemu/-/issues/2458 and wanted a newer Sphinx to test with. Unless you also install the newer RTD theme the new Sphinx will emit some deprecation warnings about things the theme is doing. --- configure | 7 +++++-- pythondeps.toml | 3 +++ 2 files changed, 8 insertions(+), 2 deletions(-) diff --git a/configure b/configure index 019fcbd0ef7..7f9cfbffa2c 100755 --- a/configure +++ b/configure @@ -973,9 +973,12 @@ if test "$download" = "enabled" ; then fi if test "$docs" != "disabled" ; then - if ! $mkvenv ensuregroup \ + if ! ( $mkvenv ensuregroup \ $(test "$docs" = "enabled" && echo "$mkvenv_online_flag") \ - ${source_path}/pythondeps.toml docs; + ${source_path}/pythondeps.toml docs && \ + $mkvenv ensuregroup \ + $(test "$docs" = "enabled" && echo "$mkvenv_online_flag") \ + ${source_path}/pythondeps.toml docs-theme ); then if test "$docs" = "enabled" ; then exit 1 diff --git a/pythondeps.toml b/pythondeps.toml index f6e590fdd86..fdf5579c43e 100644 --- a/pythondeps.toml +++ b/pythondeps.toml @@ -24,6 +24,9 @@ meson = { accepted = ">=1.1.0", installed = "1.2.3", canary = "meson" } [docs] # Please keep the installed versions in sync with docs/requirements.txt sphinx = { accepted = ">=3.4.3", installed = "5.3.0", canary = "sphinx-build" } + +[docs-theme] +# Please keep the installed versions in sync with docs/requirements.txt sphinx_rtd_theme = { accepted = ">=0.5", installed = "1.1.1" } [avocado] -- 2.34.1