switching keys and values in a dictionary in python [duplicate]

python dictionary key

my_dict2 = dict((y,x) for x,y in my_dict.iteritems())

If you are using python 2.7 or 3.x you can use a dictionary comprehension instead:

my_dict2 = {y:x for x,y in my_dict.iteritems()}

Edit

As noted in the comments by JBernardo, for python 3.x you need to use items instead of iteritems

python dictionary key

my_dict = { my_dict[k]:k for k in my_dict}

python dictionary key

Try this:

my_dict = {2:3, 5:6, 8:9}new_dict = {}for k, v in my_dict.items():    new_dict[v] = k

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