Python – Find number of occurrences of substring in a string

Find number of occurrences of substring in a string

To find the number of occurrences of a substring in a string in Python, call count() method on the string, and pass the substring as argument.

The syntax to find the number of occurrences of substring search in string x is

x.count(search)

The method returns an integer representing the number of occurrences of the given argument in the string.

Examples

1. Find number of occurrences of the search string “apple”

In the following program, we take a string x, and a search string search. We find the number of occurrences of search string in the string x.

x = 'apple is red. some apples are green.'
search = 'apple'

n = x.count(search)

print('Number of occurrences :', n)

Output

Number of occurrences : 2

2. Find number of occurrences of the search string “banana”

In the following program, we take a string x, and a search string search such that search string is not present in the string. string.count() method must return zero for the given data.

x = 'apple is red. some apples are green.'
search = 'banana'

n = x.count(search)

print('Number of occurrences :', n)

Output

Number of occurrences : 0

Summary

In this tutorial of Python Examples, we learned how to find the number of occurrences of a search string or substring in a given string using string.count() method, with the help of well detailed examples.