[Tutor] newbie 'while' question

[Kalle Svensson]

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[Matthew Richardson]
> s = raw_input('Enter a name: ')
> x = 0
> while x >= 0:
>     print s[x]
>     x += 1
> 
> The error is expected because the counter goes on beyond the number of
> characters in the string and runs out of stuff to print.  Got that part
> of it.  How can I count the number of characters in the string?  Then
> the while statement could be changed to
> 
> while x <= NumOfChar:
>     dosomestuff

This is very close to the correct solution.  You get the number of
characters in the string with the len() built-in function.  But

  s = raw_input('Enter a name: ')
  x = 0
  while x <= len(s):
      print s[x]
      x += 1

will still result in an IndexError (even though it's close to being
correct).  Do you see why?

Peace,
  Kalle
- -- 
Kalle Svensson, http://www.juckapan.org/~kalle/
Student, root and saint in the Church of Emacs.
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