voussoirkit/voussoirkit/gentools.py

15 lines
476 B
Python

import itertools
def chunk_generator(sequence, chunk_length):
'''
Given any sequence input, yield lists of length <= `chunk_length`.
Note: this generator always yields lists, even if the input was a string.
I don't want to deal with special cases of types that return differently.
'''
iterator = iter(sequence)
while True:
chunk = list(itertools.islice(iterator, chunk_length))
if not chunk:
break
yield chunk