tox: attempt to fix Python versions in testenvs using tox-gh

.github/workflows/ci.yml

@@ -46,8 +46,7 @@ jobs:
                 uv sync --all-extras
                 uv pip install codecov
                 uv tool install \
-                  --python-preference only-managed \
-                  --python ${{ matrix.python }} \
+                  --python-preference only-managed ${{ matrix.python }} \
                   tox --with tox-uv --with tox-gh
 
 

tox.ini

@@ -23,11 +23,11 @@ filename = *.py
 
 [gh]
 python =
-    3.9: 3.9
-    3.10: 3.10
-    3.11: 3.11
-    3.12: 3.12
-    3.13: 3.13, covclean, lint, coverage, readme
+    3.9: py39
+    3.10: py310
+    3.11: py311
+    3.12: py312
+    3.13: py313, covclean, lint, coverage, readme
 
 [pytest]
 python_files = test_*.py
@@ -42,7 +42,7 @@ skip_missing_interpreters = true
 envlist =
     covclean
     lint
-    {3.9,3.10,3.11,3.12,3.13}-{linux,macos}
+    py{39,310,311,311,313}
     coverage
     readme
     docs
@@ -51,6 +51,12 @@ envlist =
 platform =
     linux: linux
     macos: (macos|osx|darwin)
+base_python =
+    py39: python3.9
+    py310: python3.10
+    py311: python3.11
+    py312: python3.12
+    py313: python3.13
 deps =
     pytest
     pytest-mock
@@ -63,12 +69,16 @@ deps =
 # log level ERROR because we print out info from fixture and -s also prints useless stuff from R
 setenv =
     OMNIPATH_AUTOLOAD = false
-    {3.9-linux}: _PYTEST_TOX_POSARGS=--test-server --log-cli-level=ERROR
 passenv = TOXENV,CI,CODECOV_*,GITHUB_ACTIONS
 usedevelop = true
 commands =
     pytest --cov --cov-append --cov-config={toxinidir}/.coveragerc --ignore docs/ {posargs:-vv {env:_PYTEST_TOX_POSARGS:}}
 
+[testenv:py313]
+setenv =
+    _PYTEST_TOX_POSARGS=--test-server --log-cli-level=ERROR
+
+
 [testenv:covclean]
 description = Clean coverage files.
 deps = coverage
@@ -88,7 +98,7 @@ deps =
     coverage
     diff_cover
 skip_install = true
-depends = {3.9,3.10,3.11,3.12,3.13}-{linux,macos}
+depends = py{39,310,311,312,313}
 parallel_show_output = True
 commands =
     coverage report --omit="tox/*"