uniquify.py

#!/usr/bin/env python
# encoding:utf-8

import time

def uniquify(x):
    y = []
    for i in range(len(x)):
        m = x[i]
        d = False
        for j in range(i):
            if x[j] == m:
                i += 1
                d = True
                break
        if not d:
            y.append(m)
    return y
        
def main():
    x = [1, 2, 3, 4, 5, 6, 7, 8, 9, 5, 4, 2, 2, 7]
    start = time.time()
    y = uniquify(x)
    end = time.time()
    print(end - start)
    print(y)

if __name__ == "__main__":
    main()