On Sat, 22 Oct 2005, Shi Mu wrote:
> what is the difference between index and find in the module of string?
> for both "find" and "index", I got the position of the letter.
index raises a ValueError if the string isn't found:
>>> s = "spam"
>>> s.find('m')
3
>>> s.index('m')
3
>>> s.find('z')
-1
>>> s.index('z')
Traceback (most recent call last):
File "<stdin>", line 1, in ?
ValueError: substring not found
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