Andrew flexible sign in

[theengineear]

Instead of being stuck with this:

py.sign_in('me', 'my_key')

you can now do:

py.sign_in('me', 'my_key', plotly_domain='my plotly', plotly_streaming_domain='my streaming')

This came up for development and testing. We should be able to change these per-session. We could hide all of this from the user, but i don't see the harm in exposing it.

[etpinard]

+1

[theengineear]

@chriddyp , this is related to the streaming_test i wrote today. It required messing with the user's local config, which might be troublesome for enterprise. (and the solution was a sloppy save/change/restore operation inside a thread...).

Hehe, looks like I already got the +1 from @etpinard , woohoo!

I'll probably just merge it in this case, but won't do a version bump unless we need it in the backend before you see this.