Question

following on from this question

i have the following lists in python which i want to recombine into a dictionary/list:

from

fromfruits = { "names" : ['banana','grapefruit','apple'] , "colors" : ['yellow','pink','green'], ... }

to

tofruits = [
{'name':'banana','color':'yellow',...}, 
{'name':'grapefruit','color':'pink',...},
{'name':'apple','color':'green',...}
]

what’s the best way to do it so that i can have n properties listed in fromfruits?

please help! 🙂

Answer 1

Since the request is now to be more general:

>>> from itertools import izip
>>> ff = {'colors': ['yellow', 'pink', 'green'], 'names': ['banana', 'grapefruit', 'apple'], 'blah': ['a','b','c']}

>>> [dict(izip(ff.iterkeys(), v)) for v in izip(*ff.itervalues())]
[{'blah': 'a', 'colors': 'yellow', 'names': 'banana'},
 {'blah': 'b', 'colors': 'pink', 'names': 'grapefruit'},
 {'blah': 'c', 'colors': 'green', 'names': 'apple'}]

since the order of keys and values are the same (assuming no intervening modifications to the dictionary).