def using_builtins():
    x = range(10000)
    a = min(x)
    b = max(x)
    avg = sum(x) / len(x)

def manual_search():
    x = range(10000)
    a = x[0]
    b = x[0]
    total = 0
    for item in x:
        if item < a: a = item
        if item > b: b = item
        total += item
    avg = total / len(x)

import timeit
print timeit.timeit(using_builtins, number=10000)
print timeit.timeit(manual_search, number=10000)