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I mean a dictionary where of you could get the value by key or the key by value depending on what you need.

Ilia Vladimirskiy
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    Use two dicts . – interjay Mar 18 '17 at 11:04
  • What is your final goal / use case? Think of issues like duplicated keys/values. There are already similar answers on SO: http://stackoverflow.com/questions/483666/python-reverse-invert-a-mapping – pansen Mar 18 '17 at 11:21

1 Answers1

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You could use bidict package which provides a bidirectional map. The syntax looks as follows (taken from the documentation):

>>> from bidict import bidict
>>> element_by_symbol = bidict(H='hydrogen')
>>> element_by_symbol
bidict({'H': 'hydrogen'})
>>> element_by_symbol['H']
'hydrogen'


>>> element_by_symbol.inv
bidict({'hydrogen': 'H'})
>>> element_by_symbol.inv['hydrogen']
'H'
>>> element_by_symbol.inv.inv is element_by_symbol
True

Or you can implement it yourself, for example using one of the solutions provided here.

Community
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Miriam Farber
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