Remove duplicates from list of numbers

removeDuplicatesInList.py

#!/usr/bin/env python
#
# Remove duplicates from list of numbers
#
# @author tblong
#
# 2016-08-26: Added dictionary lookup insead of walking
# the entire list each time. The list will still maintain
# its original order.
#

list_0f_nums = [1, 2, 2, 3, 5, 6, 8, 8]


def remove_duplicates(numbers):
    result = []
    lookup = {}

    for num in numbers:
        if lookup.get(num) is None:
            lookup[num] = num
            result.append(num)

    return result


def main():
    print "List with duplicates removed:", str(remove_duplicates(list_0f_nums))

if __name__ == '__main__':
    main()