Click 7.0 is breaking upstream packages, in our case mschematool (issue reported there: aartur/mschematool#11).
After upgrading from 6.7 to 7.0, the init_db command can no longer be found.
$ mschematool xyz init_db
Usage: mschematool [OPTIONS] DBNICK COMMAND [ARGS]...
Try "mschematool --help" for help.
Error: No such command "init_db".
ERROR: Job failed: exit code 2