Add python3.12

python3.12/slack-desc

@@ -0,0 +1,19 @@
+# HOW TO EDIT THIS FILE:
+# The "handy ruler" below makes it easier to edit a package description.
+# Line up the first '|' above the ':' following the base package name, and
+# the '|' on the right side marks the last column you can put a character in.
+# You must make exactly 11 lines for the formatting to be correct.  It's also
+# customary to leave one space after the ':' except on otherwise blank lines.
+
+       |-----handy-ruler------------------------------------------------------|
+python3.12: python3.12 (object-oriented interpreted programming language)
+python3.12:
+python3.12: Python is an interpreted, interactive, object-oriented programming
+python3.12: language that combines remarkable power with very clear syntax.
+python3.12: This is a new version of the language that is incompatible with the
+python3.12: 2.x line of releases.  The language is mostly the same, but many
+python3.12: details, especially how built-in objects like dictionaries and strings
+python3.12: work, have changed considerably, and a lot of deprecated features have
+python3.12: finally been removed.  Also, the standard library has been reorganized
+python3.12: in a few prominent places.
+python3.12: