[Python-ideas] Allow "assigning" to Ellipse to discard values.

[Antoine Pitrou]

On Tue, 10 Feb 2015 13:23:58 -0800
Chris Barker <chris.barker at noaa.gov> wrote:
> On Tue, Feb 10, 2015 at 1:01 PM, Spencer Brown <spencerb21 at live.com> wrote:
> 
> > Basically, in any location where a variable name is provided for
> > assignment (tuple unpacking, for loops, function parameters, etc) a
> > variable name can be replaced by '...' to indicate that that value will not
> > be used. This would be syntactically equivalent to del-ing the variable
> > immediately after, except that the assignment never needs to be done.
> >
> > Examples:
> > >>> tup =  ('val1', 'val2', (123, 456, 789))
> > >>> name, ..., (..., value, ...) = tup
> >
> 
> I generally handle this by using a really simple no-meaning name, like"_" :
> 
> name, _, (_, value, __ ) = tup
> 
> granted, the _ sticks around and keeps the object alive, which may cause
> issues. But is it often a big deal?

The actual deal with that is when you are using gettext or a
similar I18N framework :-)

Regards

Antoine.