是否有适用于 Python 3.x 的 array_count_values() 模拟或执行此操作的最佳方法？

Question

Is there array_count_values() analogue or fastest way to do this in Python 3.x

from

d = ["1", "this", "1", "is", "Sparta", "Sparta"]

to

{
  '1': 2,
  'this': 1,
  'is': 1,
  'Sparta': 2
}

Answer 1

You can count the occurrence of each element in a list using Counter :

from collections import Counter

l = [1, "this", 1, "is", "Sparta", "Sparta"]
print(Counter(l))

This prints

Counter({1: 2, 'Sparta': 2, 'this': 1, 'is': 1})

repl.it link