Count number of occurrences of a given substring in a string

Question

How can I count the number of times a given substring is present within a string in Python?

For example:

>>> \'foo bar foo\'.numberOfOccurre         


        

Answer 1

You could use the startswith method:

def count_substring(string, sub_string):
    x = 0
    for i in range(len(string)):
        if string[i:].startswith(sub_string):
            x += 1
    return x