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First solution in Creative category for Median by el_pollo_loco
def checkio(data):
# sort data
dt = sorted(data);
# return semi-sum of two middle numbers if length is even
return dt[len(dt)//2] * 0.5 + dt[len(dt) // 2 - (len(dt) % 2 == 0)] * 0.5
#These "asserts" using only for self-checking and not necessary for auto-testing
if __name__ == '__main__':
assert checkio([1, 2, 3, 4, 5]) == 3, "Sorted list"
assert checkio([3, 1, 2, 5, 3]) == 3, "Not sorted list"
assert checkio([1, 300, 2, 200, 1]) == 2, "It's not an average"
assert checkio([3, 6, 20, 99, 10, 15]) == 12.5, "Even length"
print("Start the long test")
assert checkio(list(range(1000000))) == 499999.5, "Long."
print("The local tests are done.")
Jan. 16, 2015