There are many way for Counting the occurrence of unique letters in a string in Python 3. I just wanna know what is the best way for this job. Thanks.
if you need to count characters in string, try the following
a = "aaabbcccd" b = dict.fromkeys(a, 0) for i in a: b[i] += 1
b now holds the counts you require:
{'a': 3, 'c': 3, 'b': 2, 'd': 1}
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