frequency of all elements of list in Python [dupli

问题:

This question already has answers here:

How to count the frequency of the elements in a list? (30 answers)

Closed 6 years ago.

I have a list l = [1,2,2,3,1,1,2,3,4,5,6]
I don't want to use l.count(element) method. I don't want to use for loop or iterator.
output like {1: 3, 2: 3, 3: 2, 4: 1, 5: 1, 6: 1}

回答1:

Use collection's Counter:

>>> from collections import Counter
>>> l = [1,2,2,3,1,1,2,3,4,5,6]
>>> Counter(l)
Counter({1: 3, 2: 3, 3: 2, 4: 1, 5: 1, 6: 1})