Christopher Allan Webber writes: > Building with a newer version still fails. > > I filed a bug on the sqlalchemy tracker: > > > https://bitbucket.org/zzzeek/sqlalchemy/issues/3649/tests-fail-with-python-built-with-newer
Good news, see the above ticket! There's a fix upstream. I'm working backporting as a patch for Guix. Only python-sqlalchemy will need to be updated, which meanss this won't require a ton of rebuilds.