How exactly does a generator comprehension work?

Question

What does generator comprehension do? How does it work? I couldn\'t find a tutorial about it.

Answer 1

Generators are same as lists only, the minor difference is that in lists we get all the required numbers or items of the list at ones, but in generators the required numbers are yielded one at a time. So for getting the required items we have to use the for loop to get all the required items.

#to get all the even numbers in given range
 
def allevens(n):
    for x in range(2,n):
        if x%2==0:
            yield x

for x in allevens(10)
print(x)

#output
2
4
6
8