Split dictionary of lists into list of dictionaries

Question

What i need to do is to convert something like this

{\'key1\': [1, 2, 3], \'key2\': [4, 5, 6]}

into

[{\'key1\': 1, \'key2\'         


        

Answer 1

>>> a = {'key1': [1, 2, 3], 'key2': [4, 5, 6]}
>>> [dict((key, a[key][i]) for key in a.keys()) for i in range(len(a.values()[0]))]
[{'key2': 4, 'key1': 1}, {'key2': 5, 'key1': 2}, {'key2': 6, 'key1': 3}]

Answer 2

d = {'key1': [1, 2, 3], 'key2': [4, 5, 6]}

keys = d.keys()
vals = zip(*[d[k] for k in keys])
l = [dict(zip(keys, v)) for v in vals]
print l

produces

[{'key2': 4, 'key1': 1}, {'key2': 5, 'key1': 2}, {'key2': 6, 'key1': 3}]