count number of occurrences of all elements in list python
import collections
a_list = ["a", "b", "a"]
occurrences = collections.Counter(a_list)
print(occurrences)
count number of occurrences of all elements in list python
import collections
a_list = ["a", "b", "a"]
occurrences = collections.Counter(a_list)
print(occurrences)
python count occurrences of an item in a list
>>> [1, 2, 3, 4, 1, 4, 1].count(1)
3
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