Toni Fuente via Tutor wrote:
> strings_chunk = list(itertools.chain.from_iterable(chunk))
> for item in strings_chunk:
...
Note that if you are iterating over strings_chunk just once there is no need
to create an in-memory list.
for item in itertools.chain.from_iterable(chunk):
...
will work, too, without the consumption of time and memory needed to build
the list.
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