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Lists & loops

Iterate, transform, and combine sequences with readable loop patterns.

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Lists & loops easy

How to Partition a List Around a Pivot in Python

This code splits a list into three parts—elements less than, equal to, and greater than a pivot—then concatenates them to produce a partitioned list while preserving the original order within each group.

partition list pivot
Python 
def partition_list(lst, pivot):
    less = []
    equal = []
    greater = []
    for item in lst:
        if item < pivot:
            less.append(item)
        elif item == pivot:
            equal.append(item)
        else:
            greater.append(item)
    return less + equal + greater

if __name__ == "__main__…
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