[Python-ideas] A more readable way to nest functions

[Mikhail V]

On 30 January 2017 at 21:25, David Mertz <mertz at gnosis.cx> wrote:

> On Mon, Jan 30, 2017 at 11:52 AM, Mikhail V <mikhailwas at gmail.com> wrote:
>
>> *Theoretically* I see a solution by 'inlined' statements.
>> Take a long example:
>>
>>     print ( merge (a, b, merge ( long_variable2, long_variable2 ) )
>>
>> Now just split it in 2 lines:
>>
>>     tmp <> merge ( long_variable2, long_variable2 )
>>     print ( merge (a, b, tmp )  )
>>
>> So I'd for example invent a special sign which just marks
>> statements that will be first collected as inline text, sort of macros.
>>
>
> I have a great idea for this special sign.  We could use the equal sign
> '=' for this purpose of assigning a value into a temporary name. :-)
>
> tmp = merge(long_variable2, long_variable2)
> print (merge(a, b, tmp) )
>
>
>
Great idea :)  But actually that was my idea initially, so just breaking it
into two lines solves the readability issue perfectly with long
expressions. Although if one is chasing some kind of optimisations... I
don't know, I see very often people want to stick everything in one big
expression.
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