Question

以下是练习中的代码：

from 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)

现在我正在运行Windows 7，我正在使用代码

运行CMD行

python ex14.py myname

我收到此错误：

File "ex14.py", line 3
Python ex14.py, user_name
SyntaxError: invalid syntax

Answer 1

可见字符中有nothing wrong with the script。

检查源中没有Unicode空格，例如NO-BREAK SPACE个字符。在同一目录中创建一个新脚本：

with open('ex14.py', 'rb') as file:
     s = file.read()
     print(repr(s)[:60])
     u = s.decode('ascii') # this line should raise an error
                           # if there are bytes outside ascii

检查Python版本以确保它是2.7（正确解释错误消息）：
```
$ python -V
```
检查文件是否使用utf-16/32编码保存（@ abarnert在评论中的建议）。

在这种情况下，您应该在'\x00'结果中看到许多零字节repr()。

Answer 2

安装python2并在终端类型

python2 ex14.py myname

将解决问题您正在运行最新的python版本的脚本并且您的代码的语法是针对python版本2的这就是你得到语法错误的原因

锻炼14学习python的难点

2 个答案: