Preliminary support for Python 3.13a3

.github/workflows/tests.yml

@@ -103,6 +103,7 @@ jobs:
           - "3.10"
           - "3.11"
           - "3.12"
+          - "3.13.0-alpha - 3.13.0"
         os: [ubuntu-20.04, macos-11]
         exclude:
           - os: macos-11
@@ -134,7 +135,19 @@ jobs:
           restore-keys: |
             ${{ runner.os }}-pip-
 
+      - name: Install Build Dependencies (3.13.0-alpha - 3.13.0)
+        if: matrix.python-version == '3.13.0-alpha - 3.13.0'
+        run: |
+          pip install -U pip
+          pip install -U setuptools wheel twine
+          # cffi will probably have no public release until a Python 3.13 beta
+          # or even RC release, see https://github.com/python-cffi/cffi/issues/23
+          echo "cffi @ git+https://github.com/python-cffi/cffi.git@954cab4f889fb019a7f90df153ee1be501495f58" > cffi_constraint.txt
+          PIP_CONSTRAINT=cffi_constraint.txt pip install cffi
+          # twine has no release for 3.13, yet, see https://github.com/pypa/twine/issues/1030
+          pip install -U "git+https://github.com/pypa/twine.git#egg=twine"
       - name: Install Build Dependencies
+        if: matrix.python-version != '3.13.0-alpha - 3.13.0'
         run: |
           pip install -U pip
           pip install -U setuptools wheel twine cffi
@@ -178,7 +191,18 @@ jobs:
           python setup.py build_ext -i
           python setup.py bdist_wheel
 
+      - name: Install zope.index and dependencies (3.13.0-alpha - 3.13.0)
+        if: matrix.python-version == '3.13.0-alpha - 3.13.0'
+        run: |
+          # Install to collect dependencies into the (pip) cache.
+          # cffi will probably have no public release until a Python 3.13 beta
+          # or even RC release, see https://github.com/python-cffi/cffi/issues/23
+          echo "cffi @ git+https://github.com/python-cffi/cffi.git@954cab4f889fb019a7f90df153ee1be501495f58" > cffi_constraint.txt
+          # Use "--pre" here because dependencies with support for this future
+          # Python release may only be available as pre-releases
+          PIP_CONSTRAINT=cffi_constraint.txt pip install --pre .[test]
       - name: Install zope.index and dependencies
+        if: matrix.python-version != '3.13.0-alpha - 3.13.0'
         run: |
           # Install to collect dependencies into the (pip) cache.
           pip install .[test]
@@ -222,6 +246,7 @@ jobs:
           && startsWith(github.ref, 'refs/tags')
           && startsWith(runner.os, 'Mac')
           && !startsWith(matrix.python-version, 'pypy')
+          && !startsWith(matrix.python-version, '3.13.0-alpha - 3.13.0')
         env:
           TWINE_PASSWORD: ${{ secrets.TWINE_PASSWORD }}
         run: |
@@ -241,6 +266,7 @@ jobs:
           - "3.10"
           - "3.11"
           - "3.12"
+          - "3.13.0-alpha - 3.13.0"
         os: [ubuntu-20.04, macos-11]
         exclude:
           - os: macos-11
@@ -277,7 +303,25 @@ jobs:
         with:
           name: zope.index-${{ runner.os }}-${{ matrix.python-version }}.whl
           path: dist/
+      - name: Install zope.index 3.13.0-alpha - 3.13.0
+        if: ${{ startsWith(matrix.python-version, '3.13.0-alpha - 3.13.0') }}
+        run: |
+          pip install -U wheel setuptools
+          # cffi will probably have no public release until a beta or even RC
+          # version of Python 3.13, see https://github.com/python-cffi/cffi/issues/23
+          echo 'cffi @ git+https://github.com/python-cffi/cffi.git@954cab4f889fb019a7f90df153ee1be501495f58 ; platform_python_implementation == "CPython"' > cffi_constraint.txt
+          # coverage has a wheel on PyPI for a future python version which is
+          # not ABI compatible with the current one, so build it from sdist:
+          pip install -U --no-binary :all: coverage
+          # Unzip into src/ so that testrunner can find the .so files
+          # when we ask it to load tests from that directory. This
+          # might also save some build time?
+          unzip -n dist/zope.index-*whl -d src
+          # Use "--pre" here because dependencies with support for this future
+          # Python release may only be available as pre-releases
+          PIP_CONSTRAINT=cffi_constraint.txt pip install --pre -U -e .[test]
       - name: Install zope.index
+        if: ${{ !startsWith(matrix.python-version, '3.13.0-alpha - 3.13.0') }}
         run: |
           pip install -U wheel setuptools
           pip install -U coverage

.manylinux-install.sh

@@ -28,6 +28,7 @@ yum -y install libffi-devel
 
 tox_env_map() {
     case $1 in
+        *"cp313"*) echo 'py313';;
         *"cp37"*) echo 'py37';;
         *"cp38"*) echo 'py38';;
         *"cp39"*) echo 'py39';;
@@ -41,14 +42,20 @@ tox_env_map() {
 # Compile wheels
 for PYBIN in /opt/python/*/bin; do
     if \
+       [[ "${PYBIN}" == *"cp313"* ]] || \
        [[ "${PYBIN}" == *"cp311"* ]] || \
        [[ "${PYBIN}" == *"cp312"* ]] || \
        [[ "${PYBIN}" == *"cp37"* ]] || \
        [[ "${PYBIN}" == *"cp38"* ]] || \
        [[ "${PYBIN}" == *"cp39"* ]] || \
        [[ "${PYBIN}" == *"cp310"* ]] ; then
-        "${PYBIN}/pip" install -e /io/
-        "${PYBIN}/pip" wheel /io/ -w wheelhouse/
+        if [[ "${PYBIN}" == *"cp313"* ]] ; then
+            "${PYBIN}/pip" install --pre -e /io/
+            "${PYBIN}/pip" wheel /io/ --pre -w wheelhouse/
+        else
+            "${PYBIN}/pip" install -e /io/
+            "${PYBIN}/pip" wheel /io/ -w wheelhouse/
+        fi
         if [ `uname -m` == 'aarch64' ]; then
           cd /io/
           ${PYBIN}/pip install tox

.meta.toml

@@ -10,7 +10,7 @@ with-windows = false
 with-pypy = true
 with-docs = true
 with-sphinx-doctests = true
-with-future-python = false
+with-future-python = true
 with-macos = false
 
 [tox]

CHANGES.rst

@@ -7,6 +7,8 @@
 
 - Add support for Python 3.12.
 
+- Add preliminary support for Python 3.13 as of 3.13a3.
+
 - Fix error in ``OkapiIndex._search_wids`` for Python 3.10+, occurring when a
   word is contained in more than 10 documents.
   `#48 <https://github.com/zopefoundation/zope.index/pull/48>`_

appveyor.yml

@@ -16,6 +16,9 @@ environment:
     - python: 310-x64
     - python: 311-x64
     - python: 312-x64
+    # `multibuild` cannot install non-final versions as they are not on
+    # ftp.python.org, so we skip Python 3.13 until its final release:
+    # - python: 313-x64
 
 install:
   - "SET PYTHONVERSION=%PYTHON%"

tox.ini

@@ -10,14 +10,17 @@ envlist =
     py310,py310-pure
     py311,py311-pure
     py312,py312-pure
+    py313,py313-pure
     pypy3
     docs
     coverage
 
 [testenv]
 usedevelop = true
+pip_pre = py313: true
 deps =
     py37: urllib3 < 2
+    Sphinx
 setenv =
     pure: PURE_PYTHON=1
     !pure-!pypy3: PURE_PYTHON=0