Slow to load `sys` in list of modules

[DonJayamanne]

• Install new analysis engine
• Type import sy
• The auto completion list does not have sys in the completion list
  

There's a slight delay in getting this list.
Wait for a second or two, type once again, then it works.

However for someone starting out might get confused and consider this to be a bug or buggy (implementation).

@qubitron @MikhailArkhipov @brettcannon

I'm flagging this as a bug, as I believe that's what a newbie starting with this new analysis engine would assume it to be.

[MikhailArkhipov]

We need #1591

[brettcannon]

Could we get a "Loading" notification like we do with Jedi until we have complete completions instead of a partial list?

[qubitron]

To clarify, we'd like to have the [Loading...] tooltip (not a notification banner)

[MikhailArkhipov]

#2099 adds progress report in the status bar. The Loading tooltip is controlled by VS Code and is displayed when async task for the completion list hasn't returned yet. In this case the list was provided - but it was not complete. In this case there is no 'loading' state.

[qubitron]

So that I understand this correctly: will the list automatically update with the complete results if the user waits for the loading to complete? If so, then the status bar approach makes sense to me.

[MikhailArkhipov]

The list never auto-updates. There is no such facility in VS Code. It shows static data returned from the last call to the LS. There is no way to tell VSC to re-open or update the list. Only big VS can do this.

[MikhailArkhipov]

[DonJayamanne]

Closing as we have addressed the concerns with the addition of the progress indicator.