CI: compat linting on Python 3.10

.github/workflows/tox.yml

@@ -13,7 +13,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, macos-latest] # All OSes pass except Windows because tests need Unix-only fcntl, grp, pwd, etc.
-        python-version: [ "3.7", "3.8", "3.9", "3.10", "3.11", "3.12", "pypy-3.x" ]
+        python-version: [ "3.7", "3.8", "3.9", "3.10", "3.11", "3.12", "pypy-3.10" ]
     steps:
       - uses: actions/checkout@v4
       - name: Using Python ${{ matrix.python-version }}

gunicorn/http/parser.pyi

@@ -1,6 +1,5 @@
-from typing import Self
-
 from _typeshed import Incomplete
+from typing_extensions import Self
 
 from gunicorn.config import Config as Config
 from gunicorn.http.message import Request as Request

tox.ini

@@ -22,12 +22,13 @@ allowlist_externals =
   git
   bash
 commands =
+    # note we are styling stubs to work on 3.10 - this may not always match code
     # isort --check-only will exit 0 on no change, 1 on change
-    bash -c 'git ls-files -z "**.pyi" | xargs --null python -m isort --check-only'
+    bash -c 'git ls-files -z "**.pyi" | xargs --null python -m isort --py=310 --check-only'
     # black --check will exit 0 on no change, 1 on change, and 123 on error
-    bash -c 'git ls-files -z "**.pyi" | xargs --null python -m black --check'
+    bash -c 'git ls-files -z "**.pyi" | xargs --null python -m black --target-version=py310 --check'
     # pyupgrade has no readonly option - will set exit code nonzero if writing
-    bash -c 'git ls-files -z "**.pyi" | xargs --null python -m pyupgrade --py311-plus'
+    bash -c 'git ls-files -z "**.pyi" | xargs --null python -m pyupgrade --py310-plus'
 deps =
   isort>=5.13.0
   pyupgrade==3.15.0