value count list python code example

Example 1: how to find the number of times a number appears in python

dict((i, a.count(i)) for i in a)

Example 2: count item in list python

list.count(element)

Example 3: 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 4: count number items in list python

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

print(len(mylist))

# output 6