Python - "learnpythonthehardway" 第26节。代码报错invalid syntax.

Question

题目要求从http://learnpythonthehardway.org/book/exercise26.txt下载代码，修正后运行。

本人使用的学习网站：http://www.kancloud.cn/kancloud/learn-python-hard-way/49902

我下载之后，修正错误，在Windows PowerShell 运行 ，报错

这是我修正后的代码：
def break_words(stuff):

"""This function will break up words for us."""
words = stuff.split(' ')
return words

def sort_words(words):

"""Sorts the words."""
return sorted(words)

def print_first_word(words):

"""Prints the first word after popping it off."""
word = words.pop(0)
print (word)

def print_last_word(words):

"""Prints the last word after popping it off."""
word = words.pop(-1)
print (word)

def sort_sentence(sentence):

"""Takes in a full sentence and returns the sorted words."""
words = break_words(sentence)
return sort_words(words)

def print_first_and_last(sentence):

"""Prints the first and last words of the sentence."""
words = break_words(sentence)
print_first_word(words)
print_last_word(words)

def print_first_and_last_sorted(sentence):

"""Sorts the words then prints the first and last one."""
words = sort_sentence(sentence)
print_first_word(words)
print_last_word(words)

print ("Let's practice everything.")
print ('You\'d need to know \'bout escapes with \\ that do \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 explantion
\n\t\twhere there is none.
"""

print ("--------------")
print (poem)
print ("--------------")

five = 10 - 2 + 3 - 6
print ("This should be five: %s" % 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: %d" % start_point)
print ("We'd have %d jeans, %d jars, and %d crates." % (beans, jars, crates))

start_point = start_point / 10

print ("We can also do that this way:")
print ("We'd have %d beans, %d jars, and %d crabapples." % secret_formula(start_point)

sentence = "All god\tthings come to those who weight."

words = break_words(sentence)
sorted_words = sort_words(words)

print_first_word(words)
print_last_word(words)
print_first_word(sorted_words)
print_last_word(sorted_words)
sorted_words = sort_sentence(sentence)
print (sorted_words)

print_first_and_last(sentence)

print_first_and_last_sorted(sentence)

望各位给予指点。

Answer 1

=_=

72行漏了右括号

另: 请修改排版