How to know what to install (Ubuntu/Debian) for a given import?

[Chris Green]

Wildman <best_lay at yahoo.com> wrote:
> On Wed, 01 Feb 2017 17:12:26 +0000, Chris Green wrote:
> 
> > I'm often hitting this problem, how does one find out what package to
> > install to provide what a give import needs?
> > 
> > Currently I'm modifying some code which has 'import gtk', I want to
> > migrate from Python 2 to Python 3 if I can but at the moment the
> > import fails in Python 3.
> > 
> > There are dozens of packages in the Ubuntu repositories which *might*
> > provide what I need I don't want to try them all!  So, is there an
> > easy way to find out?
> > 
> > ... and while I'm here, can someone tell me what package I need?
> 
> Try this:
> 
> import gi
> gi.require_version('Gtk', '3.0')
> from gi.repository import Gtk
> 
That works but it's a workaround rather than the proper way to do it
isn't it?  ... and doesn't it need an internet connection?

-- 
Chris Green
·