interesting.py

#!/usr/bin/env python3

def interesting(num):
    # palindrome
    if num == num[::-1]:
        return True

    # alternating
    if num[0] == num[2] and num[2] == num[4]:
        return True

    if num[1] == num[3] and num[3] == num[5]:
        return True

    # first half same as last
    if num[0:3] == num[3:6]:
        return True

    # repeat 3
    if num[0] == num[1] == num[2]:
        return True

    if num[1] == num[2] == num[3]:
        return True

    if num[2] == num[3] == num[4]:
        return True

    if num[3] == num[4] == num[5]:
        return True

    # repeat 4
    if num[0] == num[1] == num[2] == num[3]:
        return True

    if num[1] == num[2] == num[3] == num[4]:
        return True

    if num[2] == num[3] == num[4] == num[5]:
        return True

    # repeat 5
    if num[0] == num[1] == num[2] == num[3] == num[4]:
        return True

    if num[1] == num[2] == num[3] == num[4] == num[5]:
        return True

    # repeat 6
    if num[0] == num[1] == num[2] == num[3] == num[4] == num[5]:
        return True

    # 1/2 match; 4/5 match
    if num[1] == num[2] and num[4] == num[5]:
        return True

    # 0/1 match; 3/4 match
    if num[0] == num[1] and num[3] == num[4]:
        return True

    # sequential run up or down
    if int(num[0]) + 1 == int(num[1]) and int(num[1]) + 1 == int(num[2]) and int(num[2]) + 1 == int(num[3]) and \
        int(num[3]) + 1 == int(num[4]) and int(num[4]) + 1 == int(num[5]):
        return True

    if int(num[0]) - 1 == int(num[1]) and int(num[1]) - 1 == int(num[2]) and int(num[2]) - 1 == int(num[3]) and \
        int(num[3]) - 1 == int(num[4]) and int(num[4]) - 1 == int(num[5]):
        return True

    # XXYYZZ
    if num[0] == num[1] and num[2] == num[3] and num[4] == num[5]:
        return True

    # XXnnYY
    if num[0] == num[1] and num[4] == num[5]:
        return True

    # XYX ZYZ
    if num[0] == num[2] and num[3] == num[5] and num[1] == num[4]:
        return True

    # first or last three are sequential runs up or down
    if int(num[0]) + 1 == int(num[1]) and int(num[1]) + 1 == int(num[2]) and int(num[2]) + 1 == int(num[3]):
        return True

    if int(num[0]) - 1 == int(num[1]) and int(num[1]) - 1 == int(num[2]) and int(num[2]) - 1 == int(num[3]):
        return True

    if int(num[3]) + 1 == int(num[4]) and int(num[4]) + 1 == int(num[5]):
        return True

    if int(num[3]) - 1 == int(num[4]) and int(num[4]) - 1 == int(num[5]):
        return True


    # first half and second half are anagrams
    if ''.join(sorted(num[0:3])) == ''.join(sorted(num[3:6])):
        return True

    return False

interesting_list = []
boring_list = []

for i in range(1000000):
    num = str(i).zfill(6)

    if interesting(num):
        interesting_list.append(num)
    else:
        boring_list.append(num)

    if int(num) % 100000 == 0:
        print("At %s" % (num))

# print(boring_list)
print("%i interesting entries" % (len(interesting_list)))
print("%f%% interesting" % ((len(interesting_list) / 1000000) * 100))

No sassing the terrible code please -- I wanted answers; not to be clever ;D