[Python-Dev] switch-based programming in Python (original) (raw)

Barry Scott barry.alan.scott@ntlworld.com
Fri, 9 Nov 2001 01:11:37 -0000

The fall through is the source of too many defects in C/C++ code. And its rarely used in the wild according to report on this subject a few years ago.

Goto in python would be a terrible thing.

    BArry

-----Original Message----- From: python-dev-admin@python.org [mailto:python-dev-admin@python.org]On Behalf Of Paul Svensson Sent: 08 November 2001 17:44 To: python-dev@python.org Subject: Re: [Python-Dev] switch-based programming in Python

On Thu, 8 Nov 2001, Eric S. Raymond wrote:

Skip Montanaro <montanaro@tttech.com>:

One other post I saw in this thread used explicit breaks as is required in C. I would get rid of that. When the current case's code ends, control flow should just jump to the end of the switch. I disagree. Such fallthrough is very useful when writing state machines, which is a significant part of the utility of a case statement.

+0 on the idea of some kind of switch statement, but -1 on bringing C's glorified computed GOTO into Python.

Maybe it would be a good idea to use some other keyword(s), so as to avoid confusion with C altogether, e.g select/when instead of switch/case.

/Paul

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