What is the best way to generate multiple generators from generator based on length in Python

Asked Jan 02 '18 at 15:26

Active Jan 02 '18 at 15:36

Viewed 48 times

I create a generator and from that I would like to get subgenerators based on a given length. I have one function but I would like to know if there any more pythonic ways maybe in the itertools module:

def create_sub_generators(generator, length=10):
    to_return = []
    for index, element in enumerate(generator):
        if (index % length) == 0 and index > 0:
            yield iter(to_return)
            to_return = []
        to_return.append(element)
    yield iter(to_return)

a = (i for i in range(100))

for index, lengh in enumerate(create_sub_generators(a, 22)):
     print(f'generator num: {index}  lenght: {len([i for i in lengh])}')

generator num: 0  lenght: 22
generator num: 1  lenght: 22
generator num: 2  lenght: 22
generator num: 3  lenght: 22
generator num: 4  lenght: 12

edited Jan 02 '18 at 15:36

srikavineehari

2,502
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asked Jan 02 '18 at 15:26

pax80

1

Possible duplicate: https://stackoverflow.com/questions/24527006/split-a-generator-into-chunks-without-pre-walking-it – DeepSpace Jan 02 '18 at 15:31
How can you get those results? Shouldn't the last print line be something like `'generator num: {} lenght: {}'.format(index, len([i for i in lengh]))`? – FatihAkici Jan 02 '18 at 16:18
Using python 3.6 f-string – pax80 Jan 02 '18 at 16:23
The difference is that The chuncks will be consumed by different tasks that will run in async – pax80 Jan 02 '18 at 16:43
Oh I see, makes sense. – FatihAkici Jan 02 '18 at 19:01

What is the best way to generate multiple generators from generator based on length in Python

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