[Urwid] A more complex urwid password edit

[Ian Ward]

Andrew Psaltis wrote:
> Howdy, folks.
>
> Here is a more complicated password edit (Ian, I mentioned this over 
> IRC).  It allows for three different types of "masking modes", act 
> like a password edit all of the time, when not in focus, or never.  
> For what I have tried to use it for, it works quite well.
>
> Also, included with the edit is an example program which demonstrates 
> a problem that I have been having with it (and a fix that seems a 
> little weird, IMO).  If anyone wants to take a stab at why this is 
> happening, feel free.
I played with the example a bit, and at first glance it seems like it is 
exposing some kind of focus bug in Urwid, when I get some more time I 
will look into it.

Ian