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Question

我在写这段代码时遇到了一个错误。我该如何重写它？我正在看这本书，它正在说明问题。 从sys import argv

script, user_name = argv
prompt = '> '

print "Hi %s, I'm the %s script." % (user_name, script)
print "I'd like to ask you a few questions."
print "Do you like me %s?" % user_name
likes = raw_input(prompt)

print "Where do you live %s?" % user_name
lives = raw_input(prompt)

print "What kind of computer do you have?"
computer = raw_input(prompt)

print """
Alright, so you said %r about liking me. 
You live in %r. Not sure where that is. 
And you have a %r computer. Nice. 
""" % (likes, lives, computer) 

错误

Traceback (most recent call last):
  File "C:\python-files\ex14.py", line 5, in <module>
    script, user_name = argv
ValueError: need more than 1 value to unpack