robs_favs = ['pizza', 'bacon cheeseburgers', 'cupcakes']
foods_in_common = []

f = open('myfoods.csv')

for food in f.readlines():
    food = food.strip("\n").strip("\r") # stripping invisible returns and new lines
    if food in robs_favs:
        foods_in_common.append(food)

print 'Me & Rob both like: %s' % ','.join(foods_in_common)