Version 0.0.20-2 of aiomysql is marked for autoremoval from testing on Fri 13 Mar 2020. It depends (transitively) on uvloop, affected by #950165. You should try to prevent the removal by fixing these RC bugs.
Last update: 2020-02-19
Standards version of the package is outdated.
The package should be updated to follow the last version of Debian Policy
(Standards-Version 4.5.0 instead of