I've today tried to install pgadmin4 on Kubuntu 18.04 according to the instructions at
https://wiki.postgresql.org/wiki/Apt Running pgadmin4 produces a 401 Unauthorized page in firefox. In the terminal it shows Python path: "/usr/lib/python3/dist-packages" Python Home: "" Webapp path: "/usr/share/pgadmin4/web/pgAdmin4.py" and hangs. postgresql works fine, installed yesterday from the Ubuntu repository. I've tried removing ~/.pgadmin/pgadmin4.db, installing the packages pgadmin4-apache2 and python3-flask-babelex, setting SERVER_MODE=True and False, and resetting the postgres password. I've never had pgadmin running before, and it's a vanilla install. Or at least it was until my various efforts to make it run, having googled around. What am I missing? Regards, John Little