UnboundLocalError:赋值前引用的局部变量'request'

时间:2013-07-20 04:25:34

标签: python bottle

我使用Bottle制作了一个简单的程序。然而,我得到一个错误;

@route('/login')
def login_form():
 return '''<form method="POST" action="/login">
            What do you want to search for?<br>
            <input name="search" type="text" />
            <input type="submit" />
          </form>'''

@route('/login', method='POST')
 def PeopleSearch():
  raw = request.forms.get('search')
  query = urllib.urlencode ( { 'q' : 'who is '+raw } )


response = urllib.urlopen ( 'http://ajax.googleapis.com/ajax/services/search/web?v=1.0&' + query   ).read()                           
json = m_json.loads ( response )
results = json [ 'responseData' ] [ 'results' ]

for result in results :
    url = result['url']
    return (url)

导入是:

# -*- coding: cp1252 -*-
import codecs
from bottle import route, run, template, request
import Tkinter
from Tkinter import *
import turtle
import time
from xgoogle.search import GoogleSearch, SearchError
import urllib2
import urllib
import json as m_json
 import sys
from urllib import FancyURLopener
import time
from BeautifulSoup import BeautifulSoup
import json as simplejson

Soup = BeautifulSoup
from nltk import sent_tokenize, word_tokenize
from collections import Counter
from math import log10
# -*- coding: utf-8 *-*

现在这个程序应该返回url,但事实并非如此。它也抛出我之前提到的错误。当我不在网页上运行时,它运行得非常好。

2 个答案:

答案 0 :(得分:0)

- 道歉 - 我发现您的帖子上有bottle标记。也许您还没有从瓶子中导入request模块。确保你有:

from bottle import request, get

在脚本开头。我非常喜欢这个网页(http://bottlepy.org/docs/dev/tutorial.html)的瓶子:)


您是否导入了urllib.request库,看起来您可能没有?尝试在开始时导入:

import urllib.request

文档中有关此模块的大量信息:http://docs.python.org/3.4/library/urllib.request.html

答案 1 :(得分:0)

看起来你错过了request模块导入。

你的脚本顶部是否有这个?

from bottle import request