Python 尝试输入字符串时出现名称错误
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Getting a name error when trying to input a string
提问by user2975703
import pickle
import os
import time
class Person():
def __init__(self, number, address):
self.number = number
self.address = address
def save():
with open('mydict.pickle', 'wb') as f:
pickle.dump(mydict, f)
mydict = {}
mydict['Avi'] = ['347-000-0000', 'Oceanview']
mydict['Alan'] = ['347-000-0000', 'Brighton']
mydict['Frank'] = ['718-000-0000', 'Brighton']
print('add a name to the database.')
name = input('Name:')
number = input('Digits:')
address = input('Address:')
mydict[name] = [number, address]
-------------------------------------------------------
ERROR: If I try to add a name to the database I get a nameerror. NameError: name 'alan' is not defined. What's weird is that strings won't work but numbers will. Sorry if my question is unclear.
错误：如果我尝试向数据库添加名称，则会出现名称错误。NameError: name 'alan' 未定义。奇怪的是，字符串不起作用，但数字会起作用。对不起，如果我的问题不清楚。
Traceback (most recent call last):
File "C:/Python33/ss", line 21, in <module>
name = input('Name:')
File "<string>", line 1, in <module>
NameError: name 'alan' is not defined
>>>
回答by falsetru
It seems like you're using Python 2.x.
您似乎在使用 Python 2.x。
Use raw_inputinstead of inputto get string from user.
If you're reading book/material that assume the reader is using Python 3.x, it's better to use Python 3.x instead of Python 2.x.
如果您正在阅读假定读者使用 Python 3.x 的书籍/材料，则最好使用 Python 3.x 而不是 Python 2.x。
BTW, dictionary keys are case-sensitive.
顺便说一句，字典键区分大小写。
>>> d = {'Avi': 1, 'Alan': 2}
>>> d['alan']
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
KeyError: 'alan'
>>> d['Alan']
2
