[Python-ideas] parameter omit

[Aaron Brady]

> -----Original Message-----
> From: Steven Bethard [mailto:steven.bethard at gmail.com]
> Sent: Friday, May 11, 2007 1:50 AM
> 
> On 5/11/07, Aaron Brady <castironpi at comcast.net> wrote:
> > Take a shot at this one.
> >
> > class WebRetrieveElement:
> >         def netretrieveOld( self ):
> >                 if hasattr( self,'hook' ) and self.filename:
> >                         urlretrieve( self.url, self.filename, self.hook
> )
> >                 elif hashook:
> >                         urlretrieve( self.url, reporthook= self.hook )
> >                 else:
> >                         urlretrieve( self.url, self.filename )
> 
> def netretrieve(self):
>     kwargs = {}
>     if self.filename:
>         kwargs['filename'] = self.filename
>     if hasattr(self, 'hook'):
>         kwargs['reporthook'] = self.hook
>     urlretrieve(self.url, **kwargs)

Right.  That's the alternative, -as- I keep bringing up.

Now let's compare, and judge if X is worth Y.

My solution, 3 lines.  Yours, 6.

X = 50% profit, -plus- the attention you save.  Y = a built-in, unobtrusive
variable, a trivial cost.  `None' doesn't get in your way, does it?

As you can see, X -is- worth Y.  Therefore, my proposal is better.