for -- else: what was the motivation?

[Weatherby,Gerard]

try:
                open(disk)
except:
                error(“Can’t open disk”)
lots of things

From: Python-list <python-list-bounces+gweatherby=uchc.edu at python.org> on behalf of Karsten Hilbert <Karsten.Hilbert at gmx.net>
Date: Monday, October 10, 2022 at 5:46 AM
To: python-list at python.org <python-list at python.org>
Subject: Re: for -- else: what was the motivation?
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Am Sun, Oct 09, 2022 at 09:58:14AM +0000 schrieb Stefan Ram:

>   I often follow this rule. For me, it's about readability. Compare:
>
> if not open( disk ):
>     error( "Can't open disk" )
> else:
>     printf( "now imagine there's some larger block here" )
                ... ad infinitum ....

Should this not be

        if not open( disk ):
            error( "Can't open disk" )
        else:
                do_lots_of_things_with(disk)

as for readability ?

Or even

        if not open( disk ):
            error( "Can't open disk" )
            return what_needs_to_be_returned

        do_lots_of_things_with(disk)

The latter version may need some code reorganization, though.

Karsten
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