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我正在尝试在网站 (http://www.proxy-listen.de/Proxy/Proxyliste.html) 上获取表单的控件信息。（其实我是想填表，提交，得到代理服务器列表）。我正在使用此代码来读取表单元素：

 for control in br.form.controls:
     if not control.name:
         print " - (type) =", (control.type)
         continue  
     print " - (name, type, value) =", (control.name, control.type, br[control.name])

出于某种原因，mechanize 没有列出单选按钮（即“type”和“liststyle”，我通过源代码发现的），因此当我提交表单时，我神秘地回到了主页（http://www.代理-listen.de)。这是我的完整代码：

 #!/usr/bin/env python
 #-*- coding: utf-8 -*-

 import mechanize

 br = mechanize.Browser()
 br.addheaders = [("Content-type", "text/html, charset=utf-8")]
 br.addheaders = [('User-agent', 'Mozilla/5.0 (Windows NT 5.2; WOW64) AppleWebKit/536.11 (KHTML, like Gecko) Chrome/20.0.1132.47 Safari/536.11')]
 br.set_handle_robots(False)

 url = 'http://www.proxy-listen.de/Proxy/Proxyliste.html'
 br.open(url)
 response1 = br.response()
 print response1

 ## Show me the forms of the website!
 for form in br.forms():
     print form

 ## Select form Nr 0, as this is the one and only form I am looking for
 br.select_form(nr=0)
 br.form.set_all_readonly(False)

 ## Fill the form
 br.form['filter_country'] = ['DE']
 br.form['filter_http_anon'] = ['3']
 br.form['filter_http_gateway'] = ['']
 br.form['filter_port'] = ['']
 br.form['filter_response_time_http'] = ['1']
 br.form['filter_timeouts1'] = ['10']
 br.form['proxies'] = ['300']


 ## I already tried adding two radio buttons manually, but even this doesnt help!
 '''
 br.form.new_control('radio','liststyle',{'value': ['info', 'leech']})
 br.form.new_control('radio','type',{'value':['http', 'https', 'socks4', 'socks5']})
 br.form.fixup()
 br.form['liststyle'] = ['leech']
 br.form['type'] = ['http']
 '''

 ## just to double-check the values, loop through controls!
 for control in br.form.controls:
     if not control.name:
         print " - (type) =", (control.type)
         continue  
     print " - (name, type, value) =", (control.name, control.type, br[control.name])

 resp2 = br.submit()
 page = resp2.read()
 print page

我已经用萤火虫检查了与 POST 请求一起发送的变量，单选按钮并不奇怪地是 POST 请求的一部分。

任何指针都非常感谢！非常感谢。

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