Python Map List of Strings to Integer List

Question

Let\'s say I have a list

l = [\'michael\',\'michael\',\'alice\',\'carter\']

I want to map it to the following:

k = [1,1,2,3         


        

Answer 1

The function is zip

E.g:

>>> l = ['a','b','a','c']
>>> k = [1,2,1,3]¨
>>> zip(l,k)
[('a', 1), ('b', 2), ('a', 1), ('c', 3)]

If you want to use the items of l as index, you want an dictionary:

>>> d = dict(zip(l,k))
>>> d
{'a': 1, 'c': 3, 'b': 2}
>>> d['a']
1
>>> d['c']
3
>>>