This page lists the contact points and communication channels for Gammapy
Gammapy slack (gammapy.slack.com)
Many Gammapy developers and users are using the Gammapy Slack to chat. There is a #general and some other Slack channels that will go to many people. But you can also join and use the Gammapy slack for 1:1 text chat with someone from the Gammapy team to get help with Python, git, Gammapy, ... The Gammapy slack is private and the history is not archived, i.e. is lost at some point.
To get access, sign-up here, and wait a bit for moderator approval.
Gammapy CTA mailing list
Ask any question about CTA data analysis with Gammapy. This is a private mailing list, so discussing CTA-internal information is OK.
Sign up here, and wait a bit for moderator approval.
Gammapy coordination committee mailing list
Use this mailing list to contact the Gammapy coordination committee. Anyone can post, but only coordination committee members can read it. Don't be shy: just email us if you have any question or comment about Gammapy!
The place where we develop Gammapy (code, tests, documentation). If you want to report an issue, you can do it directly in the issue tracker there, or by posting on the mailing lists mentioned above.
You can make a Github account yourself, it's free.