python 错误。我不明白我做错了什么

我对自己做错了什么很迷茫...我已经在网上搜索了几个小时，尝试重新格式化我的代码，但现在我只是觉得卡住了。

这是我的代码:

import httplib 
import json 
 
urlBase = 'amoeba.im' 
token = False 
username = raw_input('Username? ') 
 
connection = httplib.HTTPConnection(urlBase) 
 
def get(url): 
    connection.request("GET", url) 
    response = connection.getresponse() 
    print response.status, response.reason 
    print response.read(); 
    if token == False: 
        token = response.read() 
        token = token.split('"token":"')[1] 
        token = token.split('","')[0] 
        print token 
 
get('/api/login?username=' + username) 
 
get('/api/rooms/join?room=#lobby&token=' + token) 
 
get('/api/postmessage?message=hello%20world&token=' + token) 
 
connection.close() 

这是终端输出:

Tyler-Keohanes-MacBook-Pro:~ tylerkeohane$ clear && '/usr/bin/pythonw' '/Users/tylerkeohane/Desktop/chatbot.py' 
Username? TgwizBot 
200 OK 
{"success":true,"username":"TgwizBot","token":"103f6a2809eafb6","users":[{"username":"razerwolf","seen":1338582178260},{"username":"tonynoname","seen":1338582178028},{"username":"arrum","seen":1338582177804},{"username":"Valerio","seen":1338582177504},{"username":"Tgwizman","seen":1338582177258},{"username":"tonynoname2","seen":1338582178004},{"username":"TgwizBot","seen":1338582182219}],"time":1338582182219} 
Traceback (most recent call last): 
  File "/Users/tylerkeohane/Desktop/chatbot.py", line 21, in <module> 
    get('/api/login?username=' + username) 
  File "/Users/tylerkeohane/Desktop/chatbot.py", line 15, in get 
    if token == False: 
UnboundLocalError: local variable 'token' referenced before assignment 
Tyler-Keohanes-MacBook-Pro:~ tylerkeohane$  

有人可以帮忙吗？ :(

请您参考如下方法:

线索在这里:

UnboundLocalError: local variable 'token' referenced before assignment 

您需要将 token 声明为全局的:

def get(url): 
    global token 
    ... 

您可能还想考虑避免使用全局变量，因为它们通常被认为是一种不好的做法。