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Find all occurrences of an element in a list python

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)

14

Get all indices of a value in list python

indices = [i for i, x in enumerate(my_list) if x == "whatever"]

3

Source: stackoverflow.com

Count number of occurrences of all elements in list python

import collections

a_list = ["a", "b", "a"]
occurrences = collections.Counter(a_list)
print(occurrences)

1

Source: kite.com

Find all occurrences of an element in a list python

indices = [index for index, element in enumerate(a_list) if element == 1]

0

Source: kite.com

Python index for all matches

indices = list(filter(lambda x: x == 'whatever', my_list))

-1

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