On Wed, 18 Oct 2006 09:31:50 -0700, Lad wrote:
>
> Steven,
> Thank you for your reply and question.
>
>>
>> What should the result be if both dictionaries have the same key?
> The answer: the values should be added together and assigned to the key
> That is
> {'a':1, 'b':5}
> ( from your example below)
>
> Is there a solution?
Of course there is a solution. You just have to program it.
Look again at my example code before:
def add_dict(A, B):
"""Add dictionaries A and B and return a new dictionary."""
C = A.copy() # start with a copy of A
for key, value in B.items():
if C.has_key(key):
raise ValueError("duplicate key '%s' detected!" % key)
C[key] = value
return C
Can you see how to modify this function to do what you want?
(Hint: instead of raising a ValueError exception, you want to do something
else.)
--
Steven.
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