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53 lines
1.3 KiB
Python
53 lines
1.3 KiB
Python
"""
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This is pure python implementation of bubble sort algorithm
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For doctests run following command:
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python -m doctest -v bubble_sort.py
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or
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python3 -m doctest -v bubble_sort.py
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For manual testing run:
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python bubble_sort.py
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"""
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from __future__ import print_function
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def bubble_sort(collection):
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"""Pure implementation of bubble sort algorithm in Python
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:param collection: some mutable ordered collection with heterogeneous
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comparable items inside
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:return: the same collection ordered by ascending
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Examples:
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>>> bubble_sort([0, 5, 3, 2, 2])
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[0, 2, 2, 3, 5]
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>>> bubble_sort([])
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[]
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>>> bubble_sort([-2, -5, -45])
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[-45, -5, -2]
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"""
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length = len(collection)
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for i in range(length):
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swapped = False
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for j in range(length-1):
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if collection[j] > collection[j+1]:
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swapped = True
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collection[j], collection[j+1] = collection[j+1], collection[j]
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if not swapped: break # Stop iteration if the collection is sorted.
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return collection
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if __name__ == '__main__':
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try:
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raw_input # Python 2
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except NameError:
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raw_input = input # Python 3
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user_input = raw_input('Enter numbers separated by a comma:\n').strip()
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unsorted = [int(item) for item in user_input.split(',')]
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print(bubble_sort(unsorted))
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