Count the number of occurrences of a character in a string

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Chapters
00:00 Count The Number Of Occurrences Of A Character In A String
00:16 Answer 1 Score 61
00:26 Accepted Answer Score 1814
00:46 Answer 3 Score 197
00:55 Answer 4 Score 37
01:14 Thank you

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Full question
https://stackoverflow.com/questions/1155...

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Content licensed under CC BY-SA
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Tags
#python #string #count

#avk47

ACCEPTED ANSWER

Score 1814

str.count(sub[, start[, end]])

Return the number of non-overlapping occurrences of substring sub in the range [start, end]. Optional arguments start and end are interpreted as in slice notation.

>>> sentence = 'Mary had a little lamb'
>>> sentence.count('a')
4

ANSWER 2

Score 197

You can use .count() :

>>> 'Mary had a little lamb'.count('a')
4

ANSWER 3

Score 61

Regular expressions maybe?

import re
my_string = "Mary had a little lamb"
len(re.findall("a", my_string))

ANSWER 4

Score 37

Python-3.x:

"aabc".count("a")

str.count(sub[, start[, end]])

Return the number of non-overlapping occurrences of substring sub in the range [start, end]. Optional arguments start and end are interpreted as in slice notation.