# list_differences.py

# list_differences.py

color_list1 = ["red","green","blue","purple","yellow","violet","white","cyan",
   "magenta","turquoise","black","lightblue","grey","lightgrey","darkgrey",
   "lightgreen","teal","pink","darkblue","darkred","darkgreen","orchid","beige"]

color_list2 = ["red","green","blue","purple","yellow","orchid","grey","white",
   "cyan","turquoise","limegreen","lightblue","lightgrey","darkgrey","violet",
   "lightgreen","tan","darkblue","darkred","darkgreen","pink"]

print "color_list1 =", color_list1
print "-"*70  # 70 dashes
print "color_list2 =", color_list2
print "-"*70

# convert lists to sets
color_set1 = set(color_list1)
color_set2 = set(color_list2)
print "These are the colors of color_list1 that are not in color_list2:"
print color_set1 - color_set2
print "-"*70
print "These are the colors of color_list2 that are not in color_list1:"
print color_set2 - color_set1