Global VS Local Subroutines
Rob Cliffe
rob.cliffe at btinternet.com
Thu Feb 10 17:32:08 EST 2022
On 10/02/2022 21:43, Friedrich Rentsch wrote:
> I believe to have observed a difference which also might be worth
> noting: the imbedded function a() (second example) has access to all
> of the imbedding function's variables, which might be an efficiency
> factor with lots of variables. The access is read-only, though. If the
> inner function writes to one of the readable external variables, that
> variable becomes local to the inner function.
You can make it continue to refer to the variables of the imbedding
function, i.e. b(), by declaring them non-local, e.g.
nonlocal c
Rob Cliffe
>
>
> Frederic
>
> On 2/10/22 1:13 PM, BlindAnagram wrote:
>> Is there any difference in performance between these two program
>> layouts:
>>
>> def a():
>> ...
>> def(b):
>> c = a(b)
>>
>> or
>>
>> def(b):
>> def a():
>> ...
>> c = a(b)
>>
>> I would appreciate any insights on which layout to choose in which
>> circumstances.
>>
>
More information about the Python-list
mailing list