Python 使用Mechanize修改表单

我正在使用Python2.7修改URL表单，但它不允许我这样做。请帮忙

这就是我到目前为止所尝试的

#@PydevCodeAnalysisIgnore
import re
import mechanize
import cookielib
## //*[@id="license"]
## //*[@id="state"] 

# Browser
br = mechanize.Browser()

# Cookie Jar
cj = cookielib.LWPCookieJar()
br.set_cookiejar(cj)

# Browser options
br.set_handle_equiv(True)
br.set_handle_gzip(True)
br.set_handle_redirect(True)
br.set_handle_referer(True)
br.set_handle_robots(False)

# Follows refresh 0 but not hangs on refresh > 0
br.set_handle_refresh(mechanize._http.HTTPRefreshProcessor(), max_time=1)

# User-Agent (this is cheating, ok?)
br.addheaders = [('User-agent', 'Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.0.1) Gecko/2008071615 Fedora/3.0.1-1.fc9 Firefox/3.0.1')]

# The site we will navigate into, handling it's session
br.open("http://www.autoreturn.com/app/search")

# Select the first (index zero) form
print [form for form in br.forms()][0]

plate = "GEL997" 
# User credentials
# br.select_form(id="searchParameters")

br.form['license'] = plate
br.form['licenseState'] = 'MD'


#response = br.response()
#a = response.read()
#print a
for f in br.forms():
    print f.name


response = br.submit() 
content = response.read() 
result = re.findall(r'[Ss]earch', content) 
print result[0]

---

没有所谓的

许可证

或

许可证日期

。以下代码将成功提交查询：

import mechanize
br = mechanize.Browser()
res = br.open('http://www.autoreturn.com/app/search')

br.form = list(br.forms())[0]
br.form['l'] = 'GEL997'
br.form['region'] = ['BCO-MD']
br.form['s'] = ['MD']
r = br.submit()
print r.read()

使用以下代码的打印输出获取下拉菜单的有效值：

for control in br.form.controls:
    print control
    print "type=%s, name=%s value=%s" % (control.type, control.name, br[control.name])

---

由于只有一个表单且表单没有名称，因此可以执行以下操作以获取表单：

#Change this
print [form for form in br.forms()][0]
#to
br.form = [form for form in br.forms()][0]

还有一些变化是：

#Change this
br.form['license'] = plate
br.form['licenseState'] = 'MD'
#To
br.form['l'] = plate
br.form['s'] = ['MD',]

编辑：我认为您也缺少第一个字段下拉列表“region”的值。 许可证字段似乎有多个带有“license”和“l”的名称标记，与“licenseState”相同

---

然后再次尝试提交，看看您得到了什么。

您使用的是

浏览器.forms（）

，我想您是想用

br.forms（）

来代替它？是的，对不起，让我来解决。同样，它仍然不起作用：（请帮助