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| -rw-r--r-- | Doc/tut/tut.tex | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/Doc/tut/tut.tex b/Doc/tut/tut.tex index 76663a7..d78b112 100644 --- a/Doc/tut/tut.tex +++ b/Doc/tut/tut.tex @@ -4117,11 +4117,10 @@ Instance method objects have attributes, too: \code{m.im_self} is the object of which the method is an instance, and \code{m.im_func} is the function object corresponding to the method. -\subsection{Exceptions Can Be Classes \label{exceptionClasses}} +\subsection{Exceptions Are Classes Too\label{exceptionClasses}} -User-defined exceptions are no longer limited to being string objects ---- they can be identified by classes as well. Using this mechanism it -is possible to create extensible hierarchies of exceptions. +User-defined exceptions are identified by classes as well. Using this +mechanism it is possible to create extensible hierarchies of exceptions. There are two new valid (semantic) forms for the raise statement: @@ -4139,8 +4138,7 @@ shorthand for: raise instance.__class__, instance \end{verbatim} -An except clause may list classes as well as string objects. A class -in an except clause is compatible with an exception if it is the same +A class in an except clause is compatible with an exception if it is the same class or a base class thereof (but not the other way around --- an except clause listing a derived class is not compatible with a base class). For example, the following code will print B, C, D in that @@ -4199,13 +4197,16 @@ world, such as Europe, Japan, and Australia; a mirror may be faster than the main site, depending on your geographical location. A more informal site is \url{http://starship.python.net/}, which contains a bunch of Python-related personal home pages; many people have -downloadable software there. +downloadable software there. Many more user-created Python modules +can be found in a third-party repository at +\url{http://www.vex.net/parnassus}. For Python-related questions and problem reports, you can post to the newsgroup \newsgroup{comp.lang.python}, or send them to the mailing list at \email{python-list@python.org}. The newsgroup and mailing list are gatewayed, so messages posted to one will automatically be -forwarded to the other. There are around 120 postings a day, +forwarded to the other. There are around 120 postings a day (with peaks +up to several hundred), % Postings figure based on average of last six months activity as % reported by www.egroups.com; Jan. 2000 - June 2000: 21272 msgs / 182 % days = 116.9 msgs / day and steadily increasing. |