count values in list code example

Example 1: count item in list python

list.count(element)

Example 2: count occurrence in array python

arr = np.array( [1, 2, 3, 2, 1, 2])
occ = np.count_nonzero(arr==0)
print(occ)
0
occ = np.count_nonzero(arr==1)
print(occ)
2

Example 3: count number items in list python

mylist = ["abc", "def", "ghi", "jkl", "mno", "pqr"]

print(len(mylist))

# output 6

Example 4: python count value in list

from collections import Counterli = ['blue', 'pink', 'green', 'green', 'yellow', 'pink', 'orange']Counter(li)#=> Counter({'blue': 1, 'pink': 2, 'green': 2, 'yellow': 1, 'orange': 1})