SF bug #699237: Tutorial uses omitted slice indices before explaining them
Moved up the explanation of slice default arguments.
diff --git a/Doc/tut/tut.tex b/Doc/tut/tut.tex
index a9fb325..71d3f60 100644
--- a/Doc/tut/tut.tex
+++ b/Doc/tut/tut.tex
@@ -640,6 +640,17 @@
'lp'
\end{verbatim}
+Slice indices have useful defaults; an omitted first index defaults to
+zero, an omitted second index defaults to the size of the string being
+sliced.
+
+\begin{verbatim}
+>>> word[:2] # The first two characters
+'He'
+>>> word[2:] # All but the first two characters
+'lpA'
+\end{verbatim}
+
Unlike a C string, Python strings cannot be changed. Assigning to an
indexed position in the string results in an error:
@@ -664,17 +675,6 @@
'SplatA'
\end{verbatim}
-Slice indices have useful defaults; an omitted first index defaults to
-zero, an omitted second index defaults to the size of the string being
-sliced.
-
-\begin{verbatim}
->>> word[:2] # The first two characters
-'He'
->>> word[2:] # All but the first two characters
-'lpA'
-\end{verbatim}
-
Here's a useful invariant of slice operations:
\code{s[:i] + s[i:]} equals \code{s}.