Created attachment 186424 [details] start of patch for creating a slave port
Created attachment 186425 [details] turn mail/py-notmuch into a slave port of mail/notmuch
In https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=221995 I mentioned that I tried to turn mail/py-notmuch into a slave port of mail/notmuch but failed, this is the current state of my patch, perhaps Sebastian wants to have a look at it.
Fixed by ports r463108.