Python/sorts/recursive-quick-sort.py

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def quick_sort(data: list) -> list:
"""
>>> for data in ([2, 1, 0], [2.2, 1.1, 0], "quick_sort"):
... quick_sort(data) == sorted(data)
True
True
True
"""
if len(data) <= 1:
return data
else:
return (
quick_sort([e for e in data[1:] if e <= data[0]])
+ [data[0]]
+ quick_sort([e for e in data[1:] if e > data[0]])
)
if __name__ == "__main__":
import doctest
doctest.testmod()