Try out Python 3.12a5. (#35)

8 files changed, 67 insertions, 26 deletions

diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 7fb3bee..76cf4fa 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -96,16 +96,17 @@ jobs:
       fail-fast: false
       matrix:
         python-version:
-          - "pypy-3.7"
+          - "pypy-3.9"
           - "3.7"
           - "3.8"
           - "3.9"
           - "3.10"
           - "3.11"
+          - "3.12.0-alpha.5"
         os: [ubuntu-20.04, macos-11]
         exclude:
           - os: macos-11
-            python-version: "pypy-3.7"
+            python-version: "pypy-3.9"
 
     steps:
       - name: checkout
@@ -177,7 +178,15 @@ jobs:
           python setup.py build_ext -i
           python setup.py bdist_wheel
 
+      - name: Install zope.i18nmessageid and dependencies (3.12.0-alpha.5)
+        if: matrix.python-version == '3.12.0-alpha.5'
+        run: |
+          # Install to collect dependencies into the (pip) cache.
+          # Use "--pre" here because dependencies with support for this future
+          # Python release may only be available as pre-releases
+          pip install --pre .[test]
       - name: Install zope.i18nmessageid and dependencies
+        if: matrix.python-version != '3.12.0-alpha.5'
         run: |
           # Install to collect dependencies into the (pip) cache.
           pip install .[test]
@@ -221,6 +230,7 @@ jobs:
           && startsWith(github.ref, 'refs/tags')
           && startsWith(runner.os, 'Mac')
           && !startsWith(matrix.python-version, 'pypy')
+          && !startsWith(matrix.python-version, '3.12.0-alpha.5')
         env:
           TWINE_PASSWORD: ${{ secrets.TWINE_PASSWORD }}
         run: |
@@ -233,16 +243,17 @@ jobs:
       fail-fast: false
       matrix:
         python-version:
-          - "pypy-3.7"
+          - "pypy-3.9"
           - "3.7"
           - "3.8"
           - "3.9"
           - "3.10"
           - "3.11"
+          - "3.12.0-alpha.5"
         os: [ubuntu-20.04, macos-11]
         exclude:
           - os: macos-11
-            python-version: "pypy-3.7"
+            python-version: "pypy-3.9"
 
     steps:
       - name: checkout
@@ -275,7 +286,22 @@ jobs:
         with:
           name: zope.i18nmessageid-${{ runner.os }}-${{ matrix.python-version }}.whl
           path: dist/
+      - name: Install zope.i18nmessageid 3.12.0-alpha.5
+        if: ${{ startsWith(matrix.python-version, '3.12.0-alpha.5') }}
+        run: |
+          pip install -U wheel setuptools
+          # 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.i18nmessageid-*whl -d src
+          # Use "--pre" here because dependencies with support for this future
+          # Python release may only be available as pre-releases
+          pip install --pre -U -e .[test]
       - name: Install zope.i18nmessageid
+        if: ${{ !startsWith(matrix.python-version, '3.12.0-alpha.5') }}
         run: |
           pip install -U wheel setuptools
           pip install -U coverage
diff --git a/.manylinux-install.sh b/.manylinux-install.sh
index 73e5fe9..544f6a3 100755
--- a/.manylinux-install.sh
+++ b/.manylinux-install.sh
@@ -28,6 +28,7 @@ yum -y install libffi-devel
 
 tox_env_map() {
     case $1 in
+        *"cp312"*) echo 'py312';;
         *"cp37"*) echo 'py37';;
         *"cp38"*) echo 'py38';;
         *"cp39"*) echo 'py39';;
@@ -40,13 +41,19 @@ tox_env_map() {
 # Compile wheels
 for PYBIN in /opt/python/*/bin; do
     if \
+       [[ "${PYBIN}" == *"cp312"* ]] || \
        [[ "${PYBIN}" == *"cp311"* ]] || \
        [[ "${PYBIN}" == *"cp37"* ]] || \
        [[ "${PYBIN}" == *"cp38"* ]] || \
        [[ "${PYBIN}" == *"cp39"* ]] || \
        [[ "${PYBIN}" == *"cp310"* ]] ; then
-        "${PYBIN}/pip" install -e /io/
-        "${PYBIN}/pip" wheel /io/ -w wheelhouse/
+        if [[ "${PYBIN}" == *"cp312"* ]] ; 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
diff --git a/.meta.toml b/.meta.toml
index 92b1a21..8d8ac44 100644
--- a/.meta.toml
+++ b/.meta.toml
@@ -2,13 +2,13 @@
 # https://github.com/zopefoundation/meta/tree/master/config/c-code
 [meta]
 template = "c-code"
-commit-id = "3c9d0741"
+commit-id = "1514f236"
 
 [python]
 with-appveyor = true
 with-windows = false
 with-pypy = true
-with-future-python = false
+with-future-python = true
 with-docs = true
 with-sphinx-doctests = true
 with-macos = false
diff --git a/CHANGES.rst b/CHANGES.rst
index 229991d..8e5f5d2 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -7,6 +7,8 @@
 
 - Drop support for Python 2.7, 3.5, 3.6.
 
+- Add preliminary support for Python 3.12a5.
+
 
 5.1.1 (2022-11-17)
 ==================
diff --git a/appveyor.yml b/appveyor.yml
index 7d2b543..b209c91 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -14,6 +14,9 @@ environment:
     - python: 39-x64
     - python: 310-x64
     - python: 311-x64
+    # `multibuild` cannot install non-final versions as they are not on
+    # ftp.python.org, so we skip Python 3.11 until its final release:
+    # - python: 312-x64
 
 install:
   - "SET PYTHONVERSION=%PYTHON%"
diff --git a/docs/narr.rst b/docs/narr.rst
index 52aa1cc..c844068 100644
--- a/docs/narr.rst
+++ b/docs/narr.rst
@@ -75,7 +75,7 @@ Messages at first seem like they are text strings:
 .. doctest::
 
   >>> import six
-  >>> robot == u'robot-message'
+  >>> robot == 'robot-message'
   True
   >>> isinstance(robot, six.text_type)
   True
@@ -85,7 +85,7 @@ through attributes:
 
 .. doctest::
 
-  >>> robot.default == u'${name} is a robot.'
+  >>> robot.default == '${name} is a robot.'
   True
   >>> robot.mapping
   >>> robot.domain
@@ -106,24 +106,24 @@ object.  They cannot be changed once the message id is created:
   ...
   AttributeError: readonly attribute
 
-  >>> robot.mapping = {u'name': u'Bender'}
+  >>> robot.mapping = {'name': 'Bender'}
   Traceback (most recent call last):
   ...
   AttributeError: readonly attribute
 
-If you need to change their information, you'll have to make a new
+If you need to change their information, yo'll have to make a new
 message id object:
 
 .. doctest::
 
-  >>> new_robot = Message(robot, mapping={u'name': u'Bender'})
-  >>> new_robot == u'robot-message'
+  >>> new_robot = Message(robot, mapping={'name': 'Bender'})
+  >>> new_robot == 'robot-message'
   True
   >>> new_robot.domain
   'futurama'
-  >>> new_robot.default == u'${name} is a robot.'
+  >>> new_robot.default == '${name} is a robot.'
   True
-  >>> new_robot.mapping == {u'name': u'Bender'}
+  >>> new_robot.mapping == {'name': 'Bender'}
   True
 
 Last but not least, messages are reduceable for pickling:
@@ -133,20 +133,20 @@ Last but not least, messages are reduceable for pickling:
   >>> callable, args = new_robot.__reduce__()
   >>> callable is Message
   True
-  >>> args == (u'robot-message',
+  >>> args == ('robot-message',
   ...          'futurama',
-  ...          u'${name} is a robot.',
-  ...          {u'name': u'Bender'},
+  ...          '${name} is a robot.',
+  ...          {'name': 'Bender'},
   ...          None,
   ...          None,
   ...          None)
   True
 
-  >>> fembot = Message(u'fembot')
+  >>> fembot = Message('fembot')
   >>> callable, args = fembot.__reduce__()
   >>> callable is Message
   True
-  >>> args == (u'fembot', None, None, None, None, None, None)
+  >>> args == ('fembot', None, None, None, None, None, None)
   True
 
 Pickling and unpickling works, which means we can store message IDs in
@@ -160,10 +160,10 @@ a database:
    >>> (pickle_bot,
    ...  pickle_bot.domain,
    ...  pickle_bot.default,
-   ...  pickle_bot.mapping) == (u'robot-message',
+   ...  pickle_bot.mapping) == ('robot-message',
    ...                          'futurama',
-   ...                          u'${name} is a robot.',
-   ...                          {u'name': u'Bender'})
+   ...                          '${name} is a robot.',
+   ...                          {'name': 'Bender'})
    True
    >>> pickle_bot.__reduce__()[0] is Message
    True
diff --git a/setup.cfg b/setup.cfg
index fdfa80f..768d60e 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -23,7 +23,7 @@ ignore =
 force_single_line = True
 combine_as_imports = True
 sections = FUTURE,STDLIB,THIRDPARTY,ZOPE,FIRSTPARTY,LOCALFOLDER
-known_third_party = six, docutils, pkg_resources
+known_third_party = six, docutils, pkg_resources, pytz
 known_zope =
 known_first_party =
 default_section = ZOPE
diff --git a/tox.ini b/tox.ini
index f182c06..df39aa5 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,7 +1,7 @@
 # Generated from:
 # https://github.com/zopefoundation/meta/tree/master/config/c-code
 [tox]
-minversion = 3.18
+minversion = 4.0
 envlist =
     lint
     py37,py37-pure
@@ -9,13 +9,16 @@ envlist =
     py39,py39-pure
     py310,py310-pure
     py311,py311-pure
+    py312,py312-pure
     pypy3
     docs
     coverage
 
 [testenv]
 usedevelop = true
+pip_pre = py312: true
 deps =
+    Sphinx
 setenv =
     pure: PURE_PYTHON=1
     !pure-!pypy3: PURE_PYTHON=0