--- a/day1/exercise/even_perfect_4.py Mon Jun 28 23:52:18 2010 -0500+++ b/day1/exercise/even_perfect_4.py Mon Jun 28 23:52:44 2010 -0500@@ -5,7 +5,8 @@ return i * i == n def all_digits_even(n):- if n < 0: n = -n+ if n < 0:+ n = -n while n > 0: if n % 2 == 1: return False