How do I count the occurrences of a list item in Python?
You can use the
count() method of a list to count the number of occurrences of an item in the list.
my_list = ['a', 'b', 'a', 'c', 'a'] print( my_list.count('a') ) # 3
This will return 3, because the element 'a' occurs 3 times in the list.
You can also use the
Counter class to count the occurrences of items in a list.
from collections import Counter my_list = ['a', 'b', 'a', 'c', 'a'] count = Counter(my_list) print( count['a'] ) # 3
This will return a
Counter object with the count of each element in the list. You can then access the count of a specific element using the element as the key.
Note that the
count() method only works on lists, while the
Counter class can be used to count the occurrences of items in any iterable.
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