Issue #22609: Constructors and update methods of mapping classes in the

collections module now accept the self keyword argument.

diff --cc Lib/_collections_abc.py
Simple merge

diff --cc Lib/collections/__init__.py
Simple merge

diff --cc Lib/test/test_collections.py
Simple merge

diff --cc Misc/NEWS
index 75260e01c069a21223af8184e6a096a235548d2f,6093dc59f3de0723601b5f043fb3dcd565948263..db6daed62bf5023c02df6c4c12237e19e47368dc
--- 1/Misc/NEWS
--- 2/Misc/NEWS
+++ b/Misc/NEWS
@@@ -191,10 -36,9 +191,13 @@@ Core and Builtin
  Library
  -------
  
+ - Issue #22609: Constructors and update methods of mapping classes in the
+   collections module now accept the self keyword argument.
+ 
 +- Issue #22940: Add readline.append_history_file.
 +
 +- Issue #19676: Added the "namereplace" error handler.
 +
  - Issue #22788: Add *context* parameter to logging.handlers.HTTPHandler.
  
  - Issue #22921: Allow SSLContext to take the *hostname* parameter even if