Rewrite extender as a generator #104
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List comprehensions are faster than for-loops, but extender() computes 3 comprehension lists. Its return value is used only once, and can be replaced by an iterable, extender() can be rewritten as a generator. This avoids creation of temporary lists, while still being readable.
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List comprehensions are faster than for-loops, but extender() computes
3 comprehension lists. Its return value is used only once, and can be
replaced by an iterable, extender() can be rewritten as a generator.
This avoids creation of temporary lists, while still being readable.