Number of occurrences of a substring in a string

Question

I need to count the nunber of times the substring \'bob\' occurs in a string.

Example problem: Find the number of times \'bob\' occurs in string s such

Answer 1

Here you have an easy function for the task:

def countBob(s):
number=0
while s.find('Bob')>0:
    s=s.replace('Bob','',1)
    number=number+1        
return number

Then, you ask countBob whenever you need it:

countBob('This Bob runs faster than the other Bob dude!')