Convert a list to a dictionary in Python

Question

Let\'s say I have a list a in Python whose entries conveniently map to a dictionary. Each even element represents the key to the dictionary, and the following o

Answer 1

Simple answer

Another option (courtesy of Alex Martelli - source):

dict(x[i:i+2] for i in range(0, len(x), 2))

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Related note

If you have this:

a = ['bi','double','duo','two']

and you want this (each element of the list keying a given value (2 in this case)):

{'bi':2,'double':2,'duo':2,'two':2}

you can use:

>>> dict((k,2) for k in a)
{'double': 2, 'bi': 2, 'two': 2, 'duo': 2}