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count how many times a value shows in python list

#use count():
>>> my_list = [1, 2, 3, 1, 4]
>>> print(my_list.count(1))
2

#OR, you can also use counter:
>>> from collections import Counter
>>> z = ['blue', 'red', 'blue', 'yellow', 'blue', 'red']
>>> Counter(z)
Counter({'blue': 3, 'red': 2, 'yellow': 1})

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count how many times a value shows in python list

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