Is in the Python something like method findNext() in string?

Question

E.g. I have got text:

"John got up. John went to the cinema. John washed his hand."

Now I would like to find first "John" and do something, then I would like to go to next "John" and do something, so I need to use something like findNext(), which considers the actual position, so it will not be finding from the beginning, but from the actual position.

Solution

The find-Method has a start-argument:

text = "John got up. John went to the cinema. John washed his hand."
pos = -1 
while True:
    pos = text.find('John', pos + 1)
    if pos == -1:
        break
    do_something