Python输入错误 [英] Python input error

问题描述

我在Mac OSX 10.9.5m上运行python 2.7.10，但无法正常工作.这是代码:

I'm running python 2.7.10 on Mac OSX 10.9.5m and it's not working. Here's the code:

# YourName.py
name = input("What is your name?\n")
print("Hi, ", name)

这是错误:

Python 2.7.10 (v2.7.10:15c95b7d81dc, May 23 2015, 09:33:12) 
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
Type "copyright", "credits" or "license()" for more information.
>>> ================================ RESTART ================================
>>> 
What is your name?
Ella
Traceback (most recent call last):
  File "/Users/CentCom/Downloads/code/ch01/YourName.py", line 2, in <module>
    name = input("What is your name?\n")
  File "<string>", line 1, in <module>
NameError: name 'Ella' is not defined
>>> 

推荐答案

在python 2.7.1中使用raw_input:

use raw_input in python 2.7.1:

name = raw_input("What is your name?\n")

否则，您必须依靠用户知道足够的内容来输入带引号的字符串.例如"David"，或者输入尝试评估名称(变量/对象/等)，如果范围内没有该名称，则会出现错误.

Otherwise you have to rely on the user to know well-enough to input in quoted string. like "David", or the input attempts to evaluate a name (variable/object/etc) and if there is no such name in scope, you'll get the error.

或者，使用异常处理:

name = input("What is your name?\n")
try:
    print("Hi, ", name)
except NameError, e:
    print("Please enclose your input with quotes")

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