Do not publish future versions

config/c-code/tests-strategy.j2

@@ -18,7 +18,7 @@
           - "3.9"
           - "3.10"
 {% if with_future_python %}
-          - "3.11.0-alpha.4"
+          - "%(future_python_version)s"
 {% endif %}
         os: [ubuntu-20.04, macos-latest]
 {% if with_pypy or with_legacy_python or gha_additional_exclude %}

config/c-code/tests.yml.j2

@@ -99,7 +99,6 @@ jobs:
         run: |
           pip install -U pip
           pip install -U setuptools wheel twine cffi
-          pip install -U coveralls coverage
 
       - name: Build %(package_name)s
         run: |
@@ -108,7 +107,6 @@ jobs:
           python setup.py build_ext -i
           python setup.py bdist_wheel
           # Also install it, so that we get dependencies in the (pip) cache.
-          pip install -U coverage
           pip install -U 'faulthandler; python_version == "2.7" and platform_python_implementation == "CPython"'
           pip install .[test]
 
@@ -130,6 +128,9 @@ jobs:
           && startsWith(github.ref, 'refs/tags')
           && startsWith(runner.os, 'Mac')
           && !startsWith(matrix.python-version, 'pypy')
+{% if with_future_python %}
+          && !startsWith(matrix.python-version, '%(future_python_version)s')
+{% endif %}
         env:
           TWINE_PASSWORD: ${{ secrets.TWINE_PASSWORD }}
         run: |
@@ -151,7 +152,13 @@ jobs:
       - name: Install %(package_name)s
         run: |
           pip install -U wheel setuptools
+{% if with_future_python %}
+          # 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
+{% else %}
           pip install -U coverage
+{% endif %}
           pip install -U 'faulthandler; python_version == "2.7" and platform_python_implementation == "CPython"'
           # Unzip into src/ so that testrunner can find the .so files
           # when we ask it to load tests from that directory. This

config/config-package.py

@@ -14,6 +14,7 @@
 META_HINT = """\
 # Generated from:
 # https://github.com/zopefoundation/meta/tree/master/config/{config_type}"""
+FUTUTRE_PYTHON_VERSION = "3.11.0-alpha.4"
 
 
 def copy_with_meta(template_name, destination, config_type, **kw):
@@ -352,6 +353,7 @@ def copy_with_meta(template_name, destination, config_type, **kw):
     with_sphinx_doctests=with_sphinx_doctests,
     with_legacy_python=with_legacy_python,
     with_future_python=with_future_python,
+    future_python_version=FUTUTRE_PYTHON_VERSION,
     with_pypy=with_pypy,
     with_windows=with_windows,
 )

config/default/tests.yml.j2

@@ -38,7 +38,7 @@ jobs:
         - ["3.9",   "py39"]
         - ["3.10",  "py310"]
 {% if with_future_python %}
-        - ["3.11.0-alpha.4",  "py311"]
+        - ["%(future_python_version)s",  "py311"]
 {% endif %}
 {% if with_pypy and with_legacy_python %}
         - ["pypy2", "pypy"]