common mistakes in this simple program

Joel Goldstick joel.goldstick at gmail.com
Mon Feb 29 15:26:16 EST 2016


On Mon, Feb 29, 2016 at 2:49 PM, Ganesh Pal <ganesh1pal at gmail.com> wrote:

> On Mar 1, 2016 12:06 AM, "Chris Angelico" <rosuav at gmail.com> wrote
> >
> > You're falling into the trap of assuming that the only exception you
> > can ever get is the one that you're planning for, and then handling.
>
> Ok sure !
>
> > ALL exceptions as though they were that one. Instead catch ONLY the
> > exception that you're expecting to see, and ignore everything else. Do
> > not use a bare "except:" clause, nor even "except Exception:", for
> > this. You will appreciate it later on.
>
> What option do I have now in  so ensure that I loop over the For loop. Try
> except is ruled out ?
>

Its not ruled out.  It is pointless.  Look at the documents.  Here is a
start: https://wiki.python.org/moin/HandlingExceptions

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Joel Goldstick
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