Revert the change of revision 1.30. While it's in general a laudable

goal to use isinstance(x, y) instead of comparing type(x) to y, it
doesn't make sense to change this in the example code for the type()
builtin...

Doc/lib/libfuncs.tex

@@ -602,7 +602,7 @@ For instance:
 
 \begin{verbatim}
 >>> import types
->>> if isinstance(x, types.StringType): print "It's a string"
+>>> if type(x) == types.StringType: print "It's a string"
 \end{verbatim}
 \end{funcdesc}