PYTHON COUNTER FOR code example
Example 1: counter method in python
from collections import Counter
list1 = ['x','y','z','x','x','x','y','z']
print(Counter(list1))
Example 2: python counter
>>> c = Counter(a=4, b=2, c=0, d=-2)
>>> d = Counter(a=1, b=2, c=3, d=4)
>>> c.subtract(d)
>>> c
Counter({'a': 3, 'b': 0, 'c': -3, 'd': -6})