如果您在开发人员工具中查看发送到该站点的请求，则将看到在选择状态后立即发送了POST。发送回的响应具有填入城市下拉列表中的值的形式。
因此，要将其复制到脚本中，您需要以下内容：
看起来像：
#!/usr/bin/env python
import re
import mechanize
from bs4 import BeautifulSoup
def select_form(form):
return form.attrs.get('id', None) == 'form1'
def get_state_items(browser):
browser.select_form(predicate=select_form)
ctl = browser.form.find_control('ctl00$ContentPlaceHolder1$ddlState')
state_items = ctl.get_items()
return state_items[1:]
def get_city_items(browser):
browser.select_form(predicate=select_form)
ctl = browser.form.find_control('ctl00$ContentPlaceHolder1$ddlCity')
city_items = ctl.get_items()
return city_items[1:]
br = mechanize.Browser()
br.open('http://www.marutisuzuki.com/Maruti-Price.aspx')
br.select_form(predicate=select_form)
br.form['ctl00$ContentPlaceHolder1$ddlmodel'] = ['AK'] # model = Maruti Suzuki Alto K10
for state in get_state_items(br):
# 1 - Submit form for state.name to get cities for this state
br.select_form(predicate=select_form)
br.form['ctl00$ContentPlaceHolder1$ddlState'] = [ state.name ]
br.submit()
# 2 - Now the city dropdown is filled for state.name
for city in get_city_items(br):
br.select_form(predicate=select_form)
br.form['ctl00$ContentPlaceHolder1$ddlCity'] = [ city.name ]
br.submit()
s = BeautifulSoup(br.response().read())
t = s.find('table', id='ContentPlaceHolder1_dtDealer')
r = re.compile(r'^ContentPlaceHolder1_dtDealer_lblName_\d+$')
header_printed = False
for p in t.findAll('span', id=r):
tr = p.findParent('tr')
td = tr.findAll('td')
if header_printed is False:
str = '%s, %s' % (city.attrs['label'], state.attrs['label'])
print str
print '-' * len(str)
header_printed = True
print ' '.join(['%s' % x.text.strip() for x in td])
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