Tim Chase <python.l...@tim.thechases.com> writes: > if portion is None: > content = iter(f)
iter(f) will iterate over lines in the file, which doesn't fit with the
rest of the algorithm. Creating an iterator that iterates over
fixed-size file chunks (in this case of length 1) is where the
two-argument form of iter comes in handy:
content = iter(lambda: f.read(1), '')
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