When I should implement string.index() and where I should implemend string.find() method ?

Question

Both index and string method is returning the same value.
string = 'hello world'
print(string.index('wo'))
print(string.find('wo'))

Answer 1

well i guess it is up to u which one u prefer..both do the same thing..the only difference is find() will return -1 if it fails to find ,but index() will raise an exception