One liner: creating a dictionary from list with indices as keys

Question

I want to create a dictionary out of a given list, in just one line. The keys of the dictionary will be indices, and values will be the elements of the list. Someth

Answer 1

Simply use list comprehension.

a = [51,27,13,56]  
b = dict( [ (i,a[i]) for i in range(len(a)) ] )
print b