gistfile1.py

def is_palindrome(number):
    s = str(number)
    r = list(s)
    r.reverse()
    return "".join(r) == s

results = []
for num_1 in range(999, 99, -1):
    for num_2 in range(999, 99, -1):
        if is_palindrome(num_1 * num_2):
            results.append(num_1 * num_2)
results.sort()
print results[-1]