alias macintosh to mac_roman #843590

Doc/library/codecs.rst

@@ -1090,7 +1090,7 @@ particular, the following variants typically exist:
 +-----------------+--------------------------------+--------------------------------+
 | mac_latin2      | maclatin2, maccentraleurope    | Central and Eastern Europe     |
 +-----------------+--------------------------------+--------------------------------+
-| mac_roman       | macroman                       | Western Europe                 |
+| mac_roman       | macroman, macintosh            | Western Europe                 |
 +-----------------+--------------------------------+--------------------------------+
 | mac_turkish     | macturkish                     | Turkish                        |
 +-----------------+--------------------------------+--------------------------------+

Lib/encodings/aliases.py

@@ -435,6 +435,7 @@ aliases = {
     'maclatin2'          : 'mac_latin2',
 
     # mac_roman codec
+    'macintosh'          : 'macintosh',
     'macroman'           : 'mac_roman',
 
     # mac_turkish codec

Misc/NEWS

@@ -117,6 +117,8 @@ Extensions
 Library
 -------
 
+- Issue #843590: Make "macintosh" an alias to the "mac_roman" encoding.
+
 - Create os.fsdecode(): decode from the filesystem encoding with
   surrogateescape error handler, or strict error handler on Windows.