Line too long (118 > 79 characters):
13 return [[[[] if c == ' ' else int(c) for c in vii.split(',')] for vii in vi.split(',,')] for vi in v.split(',,,')]Line too long (88 > 79 characters):
17 return [[[] if c == ' ' else int(c) for c in vi.split(',')] for vi in v.split(',,')]