count occurrences in array 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")

Example 4: python find number of occurrences in list

student_grades = [9.1, 8.8, 10.0, 7.7, 6.8, 8.0, 10.0, 8.1, 10.0, 9.9]

samebnumber = student_grades.count(10.0)

print(samebnumber)

Example 5: python count occurrences of an item in a list

>>> [1, 2, 3, 4, 1, 4, 1].count(1)
3

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Misc Example