How to change keys to values in a dictionary

Question

Possible duplicate:
Python: best way to exchange keys with values in a dictionary?

Suppose I need to swap keys for values in a dictionary.

This is what I mean (suppose the value is unique):

>>> my_dict = {'x':1, 'y':2, 'z':3} >>> my_dict2 = {} >>> for key, val in my_dict.items(): my_dict2[val] = key

Is there any other effective way to do this?

+28

riza Jul 06 '09 at 15:41

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How to change keys to values ​​in a dictionary