count the number of times an item appears in a list python code example

Example 1: How to see how many times somting is in a list python

vowels = ['a', 'e', 'i', 'o', 'i', 'u']
count = vowels.count('i')

Example 2: how to find the number of times a number appears in python

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

Example 3: count occurrences of value in array python

>>> l = ["a","b","b"]
>>> l.count("a")