How to slice a generator object or iterator?

Question

I would like to loop over a \"slice\" of an iterator. I\'m not sure if this is possible as I understand that it is not possible to slice an iterator. What I would like to do

Answer 1

You can't slice a generator object or iterator using a normal slice operations. Instead you need to use itertools.islice as @jonrsharpe already mentioned in his comment.

import itertools    

for i in itertools.islice(x, 95)
    print(i)

Also note that islice returns an iterator and consume data on the iterator or generator. So you will need to convert you data to list or create a new generator object if you need to go back and do something or use the little known itertools.tee to create a copy of your generator.

from itertools import tee


first, second = tee(f())