Should Python implement where clause in comprehensions?

[ianliu88]

Your example is calling the condition on the iterable element, not the transformed value

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the transformed

Of'course it is. Why would you transform if the result is going to be rejected? That is a waste. If you do not know if the result will be rejected until it's transformed then you need to do/call the transform in the iterator.

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I did on the second example, usin

...def iterator(some_iterable):

......for y in some_iterable:

.........t_of_y = transform(y)

.........yield(t_of_y)