On 6/17/2009 5:39 PM Elisha Rosensweig said...
Hi,
Till now, when I receive a dictionary that I'm not sure contains a
certain key, I would use the following template to access a given key:
if 'someKey' in dict.keys():
someData = dict['someKey']
is there a faster way to do this?
Looks like a simple 'in' is faster both when it's there...
>>> Timer("'D' in {'D':123}.keys()").timeit()
0.93669924584355613
>>> Timer("'D' in {'D':123}").timeit()
0.34678047105990117
... and when it isn't...
>>> Timer("'E' in {'D':123}.keys()").timeit()
0.99194670371434768
>>> Timer("'E' in {'D':123}").timeit()
0.34795386410769424
>>>
Emile
accessing a key that does not exist
will through an exception, which is just as tiresome...
Thanks
Elisha
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