ycdl/ycdl/helpers.py
2017-10-08 21:39:07 -07:00

31 lines
946 B
Python

def chunk_sequence(sequence, chunk_length, allow_incomplete=True):
'''
Given a sequence, divide it into sequences of length `chunk_length`.
:param allow_incomplete: If True, allow the final chunk to be shorter if the
given sequence is not an exact multiple of `chunk_length`.
If False, the incomplete chunk will be discarded.
'''
(complete, leftover) = divmod(len(sequence), chunk_length)
if not allow_incomplete:
leftover = 0
chunk_count = complete + min(leftover, 1)
chunks = []
for x in range(chunk_count):
left = chunk_length * x
right = left + chunk_length
chunks.append(sequence[left:right])
return chunks
def truthystring(s):
if isinstance(s, (bool, int)) or s is None:
return s
s = s.lower()
if s in {'1', 'true', 't', 'yes', 'y', 'on'}:
return True
if s in {'null', 'none'}:
return None
return False