bpo-11233: Create availability directive for documentation (GH-9692)
Replace "Availability: xxx" with ".. availability:: xxx" in the doc.
Original patch by Georg Brandl.
Co-Authored-By: Georg Brandl <georg@python.org>
diff --git a/Doc/library/select.rst b/Doc/library/select.rst
index 8feedaa..f5b25db 100644
--- a/Doc/library/select.rst
+++ b/Doc/library/select.rst
@@ -171,7 +171,9 @@
:func:`poll` or another interface in this module. This doesn't apply
to other kind of file-like objects such as sockets.
- This value is guaranteed by POSIX to be at least 512. Availability: Unix.
+ This value is guaranteed by POSIX to be at least 512.
+
+ .. availability:: Unix
.. versionadded:: 3.2