Count the number occurrences of a character in a string

python string count
Mat picture Mat · Jul 20, 2009 · Viewed 1M times · Source

What's the simplest way to count the number of occurrences of a character in a string?

e.g. count the number of times 'a' appears in 'Mary had a little lamb'

Answer

Ogre Codes picture Ogre Codes · Jul 20, 2009

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

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