find all occurrences of an element in a list python

1indices = [i for i, x in enumerate(my_list) if x == "whatever"]

1student_grades = [9.1, 8.8, 10.0, 7.7, 6.8, 8.0, 10.0, 8.1, 10.0, 9.9]
2
3samebnumber = student_grades.count(10.0)
4
5print(samebnumber)

1>>> [1, 2, 3, 4, 1, 4, 1].count(1)
23

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

1indices = list(filter(lambda x: x == 'whatever', my_list))