On Mar 27, 11:20 am, Paul Rubin <http://phr...@nospam.invalid> wrote:
> Carl Banks <pavlovevide...@gmail.com> writes:
> > > if x in theDict:
> > > print x, v
>
> > Where does v come from?
>
> Oops, pasted from original. Meant of course "print x, theDict[x]".
You have look up x twice with that code, whereas you wouldn't have to
with this:
v = theDict.get(x)
if v is not None:
print x, v
or with this:
try:
v = theDict[x]
except KeyError:
pass
else:
print x,v
Also, these minimize the number of times you have to type x. Thus I
recommend either of these two, or a defaultdict, for this.
Carl Banks
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