Hi
So updated the package again to the latest git release, if you remove the manually installed from git package and try my one, also remove the ~/.pyglossary as well…
zypper in https://download.opensuse.org/repositories/home:/malcolmlewis:/TESTING/openSUSE_Leap_15.1/noarch/pyglossary-3.2.1+git20200413.0f0dbed-lp151.1.1.noarch.rpm