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Change "for" explanation slightly based on comment passed along by 

Blake Winton <BlakeW@pcdocs.com>.
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Fred Drake 1998-11-30 20:37:24 +00:00
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@ -878,13 +878,16 @@ if', and is useful to avoid excessive indentation. An
\section{\keyword{for} Statements \label{for}}
The \keyword{for} statement in Python differs a bit from what you may be
used to in \C{} or Pascal. Rather than always iterating over an
arithmetic progression of numbers (like in Pascal), or leaving the user
completely free in the iteration test and step (as \C{}), Python's
\keyword{for} statement iterates over the items of any sequence (e.g., a
list or a string), in the order that they appear in the sequence. For
example (no pun intended):
The \keyword{for}\stindex{for} statement in Python differs a bit from
what you may be used to in \C{} or Pascal. Rather than always
iterating over an arithmetic progression of numbers (like in Pascal),
or giving the user the ability to define both the iteration step and
halting condition (as \C{}), Python's \keyword{for}\stindex{for}
statement iterates over the items of any sequence (e.g., a list or a
string), in the order that they appear in the sequence. For example
(no pun intended):
% One suggestion was to give a real C example here, but that may only
% serve to confuse non-C programmers.
\begin{verbatim}
>>> # Measure some strings: