python 3 the hard way exe 24

#learn python the hard way http://learnpythonthehardway.org/book/ex24.html
#I get a tuple error when I run this
#don't know why and I'm done searching for the time being
#
print ("Let's practice everything.")

print ("You\'d need to know \'bout escapes \\ that create \n newlines and \t tabs.")

poem = """
\tThe lovely world
with logic so firmly planted
cannot discern \n the needs of love
nor comprehend passion from intuition
and requires an explanation
\n\t where there is none.
"""

print ("-"*50)
print (poem)
print ("-"*50)


five = 10-2+3-6
print ("This should be five: {}".format(five))

def secret_formula(started):
    jelly_beans= started *500
    jars = jelly_beans / 1000
    crates = jars / 100
    return jelly_beans, jars, crates

start_point = 10000
beans, jars, crates = secret_formula(start_point)

print ("With a starting point of: {}".format(start_point))
print ("We'd have {} beans, {} jars, and {} crates.".format(beans, jars, crates))

start_point = (start_point /10)

print ("We can also do that this way: ")
print ("Start point",start_point)
print ("secret formula", str(secret_formula))
print ("We'd have {} beans, {} jars, and {} crates.".format(secret_formula(start_point)))