Build for each Python version rather than using limited API

.gitlab-ci.yml

@@ -2,17 +2,24 @@ image: quay.io/pypa/manylinux_2_34_x86_64
 
 variables:
   PIP_CACHE_DIR: "$CI_PROJECT_DIR/.cache/pip"
-  PYTHON: "/opt/python/cp311-cp311/bin/python"
 
 cache:
   paths:
     - .cache/pip
 
 before_script:
+  - PYTHON="/opt/python/$PY_VERSION/bin/python"
   - $PYTHON --version ; $PYTHON -m pip --version  # For debugging
   - $PYTHON -m venv venv
 
 test:
+  parallel:
+    matrix:
+      - PY_VERSION:
+          - cp310-cp310
+          - cp311-cp311
+          - cp312-cp312
+          - cp313-cp313
   script:
     - $PYTHON -m build
     - auditwheel repair dist/*.whl
@@ -31,6 +38,8 @@ publish-job:
     - if: $CI_COMMIT_TAG
   dependencies:
     - test
+  variables:
+    PY_VERSION: cp313-cp313
   script:
     - ls dist/ wheelhouse/
     - venv/bin/pip install -U twine

pyproject.toml

@@ -15,12 +15,12 @@ classifiers = [
   "License :: OSI Approved :: Mozilla Public License 2.0 (MPL 2.0)",
   "Topic :: System :: Archiving :: Compression",
 ]
-requires-python = ">=3.11"
+requires-python = ">=3.10"
 
 [project.urls]
 Source = "https://git.xfel.eu/kluyvert/zlib_into"
 
 [tool.setuptools]
 ext-modules = [
-  {name = "zlib_into", sources = ["src/zlib_into.c"], libraries = ["z"], py-limited-api=true}
+  {name = "zlib_into", sources = ["src/zlib_into.c"], libraries = ["z"]}
 ]

setup.cfg

 [bdist_wheel]
-py_limited_api=cp311

src/zlib_into.c

@@ -4,7 +4,7 @@ License, v. 2.0. If a copy of the MPL was not distributed with this
 file, You can obtain one at https://mozilla.org/MPL/2.0/. */
 
 #define PY_SSIZE_T_CLEAN
-#define Py_LIMITED_API 0x030B0000
+//#define Py_LIMITED_API 0x030B0000
 
 #include <stdlib.h>
 #include <Python.h>