Add support for Python 3.10.

.editorconfig

@@ -28,7 +28,7 @@ max_line_length = off
 # 4 space indentation
 indent_size = 4
 
-[*.{yml,zpt,pt,dtml}]
+[*.{yml,zpt,pt,dtml,zcml}]
 # 2 space indentation
 indent_size = 2
 

.github/workflows/tests.yml

@@ -16,21 +16,24 @@ jobs:
       # We want to see all failures:
       fail-fast: false
       matrix:
+        os:
+        - ubuntu
         config:
         # [Python version, tox env]
-        - ["3.8",   "lint"]
+        - ["3.9",   "lint"]
         - ["2.7",   "py27"]
         - ["3.5",   "py35"]
         - ["3.6",   "py36"]
         - ["3.7",   "py37"]
         - ["3.8",   "py38"]
         - ["3.9",   "py39"]
-        - ["pypy2", "pypy"]
-        - ["pypy3", "pypy3"]
-        - ["3.8",   "docs"]
-        - ["3.8",   "coverage"]
+        - ["3.10",  "py310"]
+        - ["pypy-2.7", "pypy"]
+        - ["pypy-3.7", "pypy3"]
+        - ["3.9",   "docs"]
+        - ["3.9",   "coverage"]
 
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.os }}-latest
     name: ${{ matrix.config[1] }}
     steps:
     - uses: actions/checkout@v2

.gitignore

@@ -1,9 +1,11 @@
 # Generated from:
 # https://github.com/zopefoundation/meta/tree/master/config/pure-python
+*.dll
 *.egg-info/
 *.profraw
 *.pyc
 *.pyo
+*.so
 .coverage
 .coverage.*
 .eggs/

.meta.toml

@@ -2,14 +2,15 @@
 # https://github.com/zopefoundation/meta/tree/master/config/pure-python
 [meta]
 template = "pure-python"
-commit-id = "517293cf7fbff6d056b7fe699777e5336361dcbf"
+commit-id = "863bceecb48a88d769063e4dedce3fd77d2b6187"
 
 [python]
 with-pypy = true
 with-legacy-python = true
 with-docs = true
 with-sphinx-doctests = true
-with-appveyor = false
+with-windows = false
+with-future-python = false
 
 [coverage]
 fail-under = 92

CHANGES.rst

@@ -6,6 +6,8 @@ Changes
 
 - Add back support for Python 3.5.
 
+- Add support for Python 3.10.
+
 
 4.3.0 (2020-10-14)
 ------------------

CONTRIBUTING.md

@@ -0,0 +1,23 @@
+<!--
+Generated from:
+https://github.com/zopefoundation/meta/tree/master/config/pure-python
+--> 
+# Contributing to zopefoundation projects
+
+The projects under the zopefoundation GitHub organization are open source and
+welcome contributions in different forms:
+
+* bug reports
+* code improvements and bug fixes
+* documentation improvements
+* pull request reviews
+
+For any changes in the repository besides trivial typo fixes you are required
+to sign the contributor agreement. See
+https://www.zope.dev/developer/becoming-a-committer.html for details.
+
+Please visit our [Developer
+Guidelines](https://www.zope.dev/developer/guidelines.html) if you'd like to
+contribute code changes and our [guidelines for reporting
+bugs](https://www.zope.dev/developer/reporting-bugs.html) if you want to file a
+bug report.

MANIFEST.in

@@ -1,5 +1,6 @@
 # Generated from:
 # https://github.com/zopefoundation/meta/tree/master/config/pure-python
+include *.md
 include *.rst
 include *.txt
 include buildout.cfg

setup.py

@@ -70,6 +70,7 @@ def read(*path):
         'Programming Language :: Python :: 3.7',
         'Programming Language :: Python :: 3.8',
         'Programming Language :: Python :: 3.9',
+        'Programming Language :: Python :: 3.10',
         'Programming Language :: Python :: Implementation :: CPython',
         'Programming Language :: Python :: Implementation :: PyPy',
         'Topic :: Internet :: WWW/HTTP',

tox.ini

@@ -10,6 +10,7 @@ envlist =
     py37
     py38
     py39
+    py310
     pypy
     pypy3
     docs
@@ -18,12 +19,9 @@ envlist =
 [testenv]
 usedevelop = true
 deps =
-    zope.testrunner
-    # Until repoze.sphinx.autointerface supports Sphinx 4.x we cannot use it:
-    Sphinx < 4
 commands =
     zope-testrunner --test-path=src {posargs:-vc}
-    sphinx-build -b doctest -d {envdir}/.cache/doctrees docs {envdir}/.cache/doctest
+    !py27-!pypy: sphinx-build -b doctest -d {envdir}/.cache/doctrees docs {envdir}/.cache/doctest
 extras =
     test
     docs
@@ -34,7 +32,8 @@ skip_install = true
 deps =
     flake8
     check-manifest
-    check-python-versions
+    check-python-versions >= 0.19.1
+    wheel
 commands =
     flake8 src setup.py
     check-manifest
@@ -43,8 +42,6 @@ commands =
 [testenv:docs]
 basepython = python3
 skip_install = false
-# Until repoze.sphinx.autointerface supports Sphinx 4.x we cannot use it:
-deps = Sphinx < 4
 commands_pre =
 commands =
     sphinx-build -b html -d docs/_build/doctrees docs docs/_build/html
@@ -57,9 +54,6 @@ allowlist_externals =
 deps =
     coverage
     coverage-python-version
-    # Until repoze.sphinx.autointerface supports Sphinx 4.x we cannot use it:
-    Sphinx < 4
-    zope.testrunner
 commands =
     mkdir -p {toxinidir}/parts/htmlcov
     coverage run -m zope.testrunner --test-path=src {posargs:-vc}
@@ -70,7 +64,7 @@ commands =
 [coverage:run]
 branch = True
 plugins = coverage_python_version
-source = src
+source = zope.dublincore
 
 [coverage:report]
 precision = 2