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0e1f616
(Get the code!)
Apologies for the lack of changelog explanation. I agree it's not useful and sheds zero light on why this was done.
This all came about for OpenStack. The following evaluation was done by the upstream OpenStack community to narrow down on a single mysql client:
https:/
At the time of that evaluation mysqldb didn't have py3 support and pymysql did. pymysql was pure-python and supported eventlet. So pymysql was deemed the "winning" mysql client that upstream would use.
Historically Ubuntu only supports one client in main. The reason for that is to minimize the number of packages that get LTS/security support provided by Canonical. So with those points in mind, we updated several packages to move from mysqldb to pymysql. We updated all packages that were in main that used python-mysqldb to instead use python-pymysql. The idea was that we would no longer have packages in main that depend on mysqldb, so mysqldb could be moved out of main and into universe.
However, today I'm not sure this is all still needed or not! python-mysqldb and python-pymysql are still both in main and upstream OpenStack still uses both.