python - Control the iteration range of the generator? -

is there way can control iteration range of python generator object?

example: generator consists of 2000 items, want 1 loop iterate 1 100, , 101 200, on.

a simple for item in generator loop deplete generator

itertools.islice(generator, start, stop, step) want use.

for example:

def generator():   n = 1   while n:     yield n     n += 1  items = generator() item in itertools.islice(items, 100):   print ('first', item) item in itertools.islice(items, 100):   print ('second', item) 

edit: above of course lets take 1 hundred each time. if know generator finite make list , iterate on ranges of it. have arbitrary , overlapping ranges.