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To: python-list@python.org
From: Dennis Lee Bieber <wlfraed@ix.netcom.com>
Subject: Re: Efficency help for a Calculator Program
Date: Thu, 03 Oct 2013 19:15:44 -0400
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On Thu, 3 Oct 2013 10:25:47 +1000, Chris Angelico <rosuav@gmail.com>
declaimed the following:

>On Thu, Oct 3, 2013 at 9:47 AM, Dennis Lee Bieber <wlfraed@ix.netcom.com> wrote:
>>     try:
>>         numItems = int(raw_input("\n\nHow many values? "))
>>     except:     #naked exception is not really good programming
>>         print "Invalid input, exiting..."
>>         sys.exit(1)
>
>Please don't _ever_ advocate this programming style! Wrapping
>something in a try/except that emits a generic message and terminates
>is a bad idea - the default behaviour, if you simply let the exception
>happen, is to emit a very useful message and terminate. Never test for
>any error condition you're not prepared to handle, as the BOFH advised
>his boss.
>
	Note: I DID include a comment that this was NOT good style.
-- 
	Wulfraed                 Dennis Lee Bieber         AF6VN
    wlfraed@ix.netcom.com    HTTP://wlfraed.home.netcom.com/