Antoon Pardon <[email protected]> writes:
> Op 20-11-15 om 08:49 schreef dieter:
>> In addition, the last few days have had two discussions in this list
>> demonstrating the conceptial difficulties of late binding -- one of them:
>>
>> Why does "[lambda x: i * x for i in range(4)]" gives
>> a list of essentially the same functions?
>
> Can you (or someone else) explain what a list comprehension is equivallent of.
> Especially in python3.
I am not sure about "Python3" (never used it), but in Python 2,
the simple list comprehension "[x for x in l]" is roughly equivalent to:
result = []
for x in l: result.append(x)
... the list comprehension result is in "result" which (however) is not
bound ...
In Python 3, "x" might not be bound as well - to harmonise list comprehension
with generator expressions (and avoid the confusion, that a local
(temporary) binding can change the value of a global binding).
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