key not found in dictionary

[linnorm at gmail.com]

KraftDiner wrote:
> I have a dictionary and sometime the lookup fails...
> it seems to raise an exception when this happens.
> What should I do to fix/catch this problem?
>
>     desc = self.numericDict[k][2]
> KeyError: 589824   <---- This is the error that is being produced,
> because there is no key
> 589824.

Given the information provided the simplest answer would be:

try:
    desc = self.numericDict[k][2]
except KeyError:
    desc = ''