Add support for Python 3.10 + fix docs. (#26)

* Bumped version for feature release.

9 files changed, 49 insertions, 20 deletions

diff --git a/.editorconfig b/.editorconfig
index f3e46f5..c5508b9 100644
--- a/.editorconfig
+++ b/.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
 
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 38cb0de..927d9f3 100644
--- a/.github/workflows/tests.yml
+++ b/.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
diff --git a/.gitignore b/.gitignore
index 9a9e9b9..c724a76 100644
--- a/.gitignore
+++ b/.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/
diff --git a/.meta.toml b/.meta.toml
index 2cd2e91..fad8c6e 100644
--- a/.meta.toml
+++ b/.meta.toml
@@ -2,14 +2,15 @@
 # https://github.com/zopefoundation/meta/tree/master/config/pure-python
 [meta]
 template = "pure-python"
-commit-id = "20bd2b81e77d10768865fa8ec7840352a7ebab8f"
+commit-id = "efb3f62f0f2d8deea657bae8db49a191698e62ef"
 
 [python]
-with-appveyor = false
 with-pypy = true
 with-legacy-python = true
 with-docs = true
 with-sphinx-doctests = false
+with-windows = false
+with-future-python = false
 
 [tox]
 use-flake8 = true
diff --git a/CHANGES.rst b/CHANGES.rst
index 67ca24b..9bd9497 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -2,20 +2,20 @@
  Changes
 =========
 
-5.1.1 (unreleased)
+5.2.0 (unreleased)
 ==================
 
-- Add support for Python 3.9.
+- Add support for Python 3.9, 3.10.
 
 
 5.1 (2020-07-06)
 ================
 
-- Packaging and test configuration cleanups
+- Packaging and test configuration cleanups.
 
 - Improve `PathExpr` reusability
   Provide customizable support for the use of builtins in path expressions
-  (`#23 <https://github.com/zopefoundation/zope.tales/issues/23>`_)
+  (`#23 <https://github.com/zopefoundation/zope.tales/issues/23>`_).
 
 
 5.0.2 (2020-03-27)
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
new file mode 100644
index 0000000..31d95f0
--- /dev/null
+++ b/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.
diff --git a/MANIFEST.in b/MANIFEST.in
index 38e9c74..18bb4ff 100644
--- a/MANIFEST.in
+++ b/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
diff --git a/setup.py b/setup.py
index d8df934..2d006b7 100644
--- a/setup.py
+++ b/setup.py
@@ -35,7 +35,7 @@ TESTS_REQUIRE = [
 
 setup(
     name='zope.tales',
-    version='5.1.1.dev0',
+    version='5.2.0.dev0',
     author='Zope Foundation and Contributors',
     author_email='zope-dev@zope.org',
     description='Zope Template Application Language Expression Syntax '
@@ -60,6 +60,7 @@ setup(
         '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',
         'Natural Language :: English',
diff --git a/tox.ini b/tox.ini
index a30fca4..14d1be8 100644
--- a/tox.ini
+++ b/tox.ini
@@ -10,6 +10,7 @@ envlist =
     py37
     py38
     py39
+    py310
     pypy
     pypy3
     docs
@@ -18,7 +19,6 @@ envlist =
 [testenv]
 usedevelop = true
 deps =
-    zope.testrunner
 commands =
     zope-testrunner --test-path=src {posargs:-vc}
 extras =
@@ -30,7 +30,8 @@ skip_install = true
 deps =
     flake8
     check-manifest
-    check-python-versions
+    check-python-versions >= 0.19.1
+    wheel
 commands =
     flake8 src setup.py
     check-manifest
@@ -39,8 +40,6 @@ commands =
 [testenv:docs]
 basepython = python3
 skip_install = false
-# Until repoze.sphinx.autointerface supports Sphinx 4.x we cannot use it:
-deps = Sphinx < 4
 extras =
     docs
 commands_pre =
@@ -54,7 +53,6 @@ allowlist_externals =
 deps =
     coverage
     coverage-python-version
-    zope.testrunner
 commands =
     mkdir -p {toxinidir}/parts/htmlcov
     coverage run -m zope.testrunner --test-path=src {posargs:-vc}
@@ -64,7 +62,7 @@ commands =
 [coverage:run]
 branch = True
 plugins = coverage_python_version
-source = src
+source = zope.tales
 
 [coverage:report]
 precision = 2