Remove mailing list mentions

Author: StanFromIreland

.github/CONTRIBUTING.md

@@ -33,9 +33,8 @@ Due to the fact that this project is entirely volunteer-run (that is, no one is
 to work on Python full-time), we unfortunately can make no guarantees as to if
 or when a core developer will get around to reviewing your pull request.
 If no core developer has done a review or responded to changes made because of a
-"changes requested" review, please feel free to email [python-dev](https://mail.python.org/mailman3/lists/python-dev.python.org/) to ask if
-someone could take a look at your pull request.
-
+"changes requested" review, feel free to seek assistance through the
+[Core Development Discourse category](https://discuss.python.org/c/core-dev/23).
 
 ## Code of Conduct
 

developer-workflow/communication-channels.rst

@@ -79,9 +79,7 @@ ways, including via web browsers, NNTP newsreaders, and RSS feed readers.
 Discourse (discuss.python.org web forum)
 ========================================
 
-We have our own `Discourse`_ forum for both developers and users. This forum
-complements the `python-dev`_, `python-ideas`_, `python-help`_, and
-`python-list`_ mailing lists.
+We have our own `Discourse`_ forum for both developers and users.
 
 This forum has different categories and most core development discussions
 take place in the open forum categories for `PEPs`_ and `Core Development`_

getting-started/getting-help.rst

@@ -37,25 +37,6 @@ Those particularly relevant for help contributing to Python itself include:
 .. _Ideas: https://discuss.python.org/c/ideas/6
 
 
-.. _help-mailing-lists:
-
-Mailing lists
--------------
-
-Further options for seeking assistance include the
-`python-ideas`_ and `python-dev`_ mailing lists,
-which correspond to the `Ideas`_ and `Core Development`_
-:ref:`help-discourse` categories, respectively.
-The Discourse categories are generally more active
-and are the preferred venue for new discussions,
-but the mailing lists are still monitored and responded to.
-These mailing lists are for questions involving the
-development *of* Python, **not** for development *with* Python.
-
-.. _python-ideas: https://mail.python.org/mailman3/lists/python-ideas.python.org
-.. _python-dev: https://mail.python.org/mailman3/lists/python-dev.python.org/
-
-
 Ask #python-dev
 ---------------