Add 3.10 to the manylinux build.

Unfortunately this drops 2.7 binaries because there is no image that has both. However, from pypistats.org, it appears that our Python 2 user base is finally under 10%.

Also removes the Google groups embedding from the main web page because that no longer works.

Fixes #1822

.github/workflows/ci.yml

@@ -524,7 +524,10 @@ jobs:
         # An alternate way to do this is to run the container directly with a uses:
         # and then the script runs inside it. That may work better with caching.
         # See https://github.com/pyca/bcrypt/blob/f6b5ee2eda76d077c531362ac65e16f045cf1f29/.github/workflows/wheel-builder.yml
-        # The 2010 image is the last one that comes with Python 2.7.
+        # The 2010 image is the last one that comes with Python 2.7,
+        # and only up through the tag 2021-02-06-3d322a5.
+        # Unfortunately, this does not include Python 3.10, and the
+        # images that include Python 3.10 don't have 2.7. Sigh.
         env:
           DOCKER_IMAGE: quay.io/pypa/manylinux2010_x86_64
         run: scripts/releases/make-manylinux

docs/changes/1822.misc

+Build and upload CPython 3.10 binary manylinux wheels.
+
+Stop building and uploading CPython 2.7 binary manylinux wheels.
+Binary wheels for 2.7 continue to be available for Windows and macOS.

docs/index.rst

@@ -8,28 +8,6 @@
 
 If you like gevent, :doc:`donate <sfc>` to support the development.
 
-What are others saying?
-=======================
-
-
-Mailing List
-------------
-
-.. raw:: html
-
-   <iframe id="forum_embed"
-         src="javascript:void(0)"
-         scrolling="no"
-         frameborder="0"
-         width="100%"
-         height="500">
-   </iframe>
-
-   <script type="text/javascript">
-         document.getElementById("forum_embed").src = "https://groups.google.com/forum/embed/?place=forum/gevent"
-             + "&showsearch=false&showtabs=false&hideforumtitle=true&showpopout=true&parenturl=" + encodeURIComponent(window.location.href);
-   </script>
-
 .. _coroutine: https://en.wikipedia.org/wiki/Coroutine
 .. _Python: http://python.org
 .. _greenlet: https://greenlet.readthedocs.io

scripts/releases/make-manylinux

@@ -108,7 +108,7 @@ if [ -d /gevent -a -d /opt/python ]; then
     mkdir /gevent/wheelhouse
     OPATH="$PATH"
     which auditwheel
-    for variant in `ls -d /opt/python/cp{27,36,37,38,39}*`; do
+    for variant in `ls -d /opt/python/cp{310,27,36,37,38,39}*`; do
         export PATH="$variant/bin:$OPATH"
         echo "Building $variant $(python --version)"