New to Python - block grouping (spaces)

Antoon Pardon antoon.pardon at rece.vub.ac.be
Thu Apr 16 13:07:22 CEST 2015


On 04/16/2015 12:43 PM, Steven D'Aprano wrote:
> On Thursday 16 April 2015 20:09, Antoon Pardon wrote:
>
>> I beg to differ. The most common occurence is a loop with a break
>> condition in the middle I would prefer such a loop to be written as
>> follows:
>>
>> repeat:
>>     some
>>     code
>> break_when condition:
>>     more
>>     code
>
> That structure makes no sense to me. Why is the "break_when" *outside* of 
> the loop? Why does the "break_when condition" introduce a new block?

How do you mean outside the loop? Do you consider the "else" outside the
if statement?

>> Actually I would prefer a more elaborate scheme but would be contend with
>> a possibility like the above. IMO this is the most occuring pattern where
>> the logical structure doesn't match the physical structure and it is not
>> occuring relevantly less now.
>
> Judging by the above example, I think it may be a good thing that Python 
> doesn't allow "more elaborate" indentation schemes.
>
> repeat:
>     do this
>     do that
>                   do something else important
>           and this
> sometimes this
>           also this
>                              but don't do this
>   unless today is Tuesday
>                # end loop
>
>
>
> Simplicity is a virtue.

As is argueing against a real position instead of making something up.
Nobody is argueing for arbitrary indentation.




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