In message <[EMAIL PROTECTED]>, Abandoned
wrote:

> I want to total score..
> For example
>> > dict1={1: 4,  3: 5}... and 2 millions element
>> > dict2={3: 3,  8: 6}... and 3 millions element
> 
> result should be dict3={1:4, 3:8, 8:6}

Don't people like one-liners? :)

    dict((k, dict1.get(k, 0) + dict2.get(k, 0))
        for k in dict1.keys() + dict2.keys())
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