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Doctests + typehints in cocktail shaker sort #2061

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Merged
merged 3 commits into from
Jun 2, 2020
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Doctests + typehints in cocktail shaker sort #2061

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976e79f
Doctests in cocktail shaker sort
l3str4nge Jun 2, 2020
eec8b5f
import doctest
poyea Jun 2, 2020
829e8fa
print(f"{cocktail_shaker_sort(unsorted) = }")
cclauss Jun 2, 2020
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25 changes: 22 additions & 3 deletions sorts/cocktail_shaker_sort.py
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Original file line number Diff line number Diff line change
@@ -1,6 +1,23 @@
def cocktail_shaker_sort(unsorted):
""" https://en.wikipedia.org/wiki/Cocktail_shaker_sort """


def cocktail_shaker_sort(unsorted: list) -> list:
"""
Pure implementation of the cocktail shaker sort algorithm in Python.
>>> cocktail_shaker_sort([4, 5, 2, 1, 2])
[1, 2, 2, 4, 5]

>>> cocktail_shaker_sort([-4, 5, 0, 1, 2, 11])
[-4, 0, 1, 2, 5, 11]

>>> cocktail_shaker_sort([0.1, -2.4, 4.4, 2.2])
[-2.4, 0.1, 2.2, 4.4]

>>> cocktail_shaker_sort([1, 2, 3, 4, 5])
[1, 2, 3, 4, 5]

>>> cocktail_shaker_sort([-4, -5, -24, -7, -11])
[-24, -11, -7, -5, -4]
"""
for i in range(len(unsorted) - 1, 0, -1):
swapped = False
Expand All @@ -20,7 +37,9 @@ def cocktail_shaker_sort(unsorted):


if __name__ == "__main__":
import doctest

doctest.testmod()
user_input = input("Enter numbers separated by a comma:\n").strip()
unsorted = [int(item) for item in user_input.split(",")]
cocktail_shaker_sort(unsorted)
print(unsorted)
print(f"{cocktail_shaker_sort(unsorted) = }")