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My dict is a dict of {str: {str: list of str}}
ex: 

{'hii':{'bye': [1, 2]}}

what i want: 

{'hi':{'bye': [1, 2]}}

Is there a way to change the 'hii' to just 'hi'?

what I've tried only edits the values and not the keys.

martineau
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user3050527
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    There's no way to change keys as such. You'll need to add a new key with the same value, then delete the old key. – BrenBarn Nov 30 '13 at 19:34
  • **See also**: http://stackoverflow.com/questions/30720673/renaming-the-keys-of-a-dictionary – dreftymac May 13 '17 at 06:29

3 Answers3

16

You do need to remove and re-add, but you can do it one go with pop:

d['hi'] = d.pop('hii')
Daniel Roseman
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2

You need to remove the old key/value pair and insert a new one:

d = {'hii': {'bye': [1, 2]}}
d['hi'] = d['hii']
del d['hii']
Simeon Visser
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2

You cannot change a key in a dictionary, because the key object must be hashable, and therefore immutable. Daniel Roseman's answer looks like the most elegant way of accomplishing your goal.

Chris Drake
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