Python POST:提交按钮表单

Question

我使用的是PythonRequests库，它支持NTLM身份验证

import requests
from requests_ntlm import HttpNtlmAuth


url = 'http://ManufacturingRequests/AllItems.aspx'
username = 'domain\user'
password = 'pass'

r = requests.get(url,auth=HttpNtlmAuth(username,password))
print r.text.encode('utf-8')

我得到的URL的HTML看起来像

^{pr2}$

如何单击按钮（提交按钮表单）？在

toPost = {'Button': 'submitForm'}
r = requests.post(url, data=toPost)