we are preparing a devpi-server-3.0 beta with a lot of interesting features and speedups. One thing we'd still like to do is to restrict user and index naming. Currently we are thinking about only allowing:
Could you tell/verify if this matches your current installations? What more characters would you like to see?
We can mangle characters when we import 2.X state into 3.X and probably also do redirects in the READ web interface (as used by pip) so it should be seamless even if some indexes use odd characters.