使用python登录网站

Question

这段代码有什么问题？我尝试使用Python 3.4登录到ISP客户端页面，并返回相同的HTML页面。

import urllib.request 
import urllib.parse 
from http import cookiejar 
from bs4 import BeautifulSoup 

url = "https://www.exampe.com/login.php" 
name = "username" 
passw = "password" 

def Login(): 
    cj = cookiejar.CookieJar() 
    user_agent = 'Mozilla/4.0 (compatible; MSIE 5.5; Windows NT)' 
    headers = { 'User-Agent' : user_agent } 
    redirect =urllib.request.HTTPRedirectHandler() 
    opener = urllib.request.build_opener(urllib.request.HTTPCookieProcessor(cj)) 
    values = {'unam' : name, 'pass' : passw} 
    data = urllib.parse.urlencode(values) 
    binary_data = data.encode('utf-8') 
    login = urllib.request.Request(url,binary_data,headers) 
    login_response = opener.open(login) 
    soup = BeautifulSoup(login_response.read(),'lxml') 
    print(soup) 

Login() 

Answer 1

 import urllib.request 
     import urllib.parse 
     from http import cookiejar 
     from bs4 import BeautifulSoup 
     login = 'user' 
     password = 'password'' 
     cook = 'mfp.cookies' 
     url = "https://example/login.php" 
     cj = cookiejar.MozillaCookieJar(cook) 
     opener=urllib.request.build_opener(urllib.request.HTTPRedirectHandler(), 
     urllib.request.HTTPSHandler(),urllib.request.HTTPSHandler(debuglevel=0), 
     urllib.request.HTTPCookieProcessor(cj)) 
     opener.addheaders = [('User-agent', 'Mozilla/5.0 (X11; Linux i686)  AppleWebKit/537.36 (KHTML, like Gecko) Chrome/37.0.2062.120 Safari/537.36'Wink] 
     values = {'uname' : login,'upass' : password,'login' : 'Login'} 
     data = urllib.parse.urlencode(values) 
     binary_data = data.encode('UTF-8') 
     s = opener.open(url,binary_data) 
     main = opener.open('http://example.com/page/1/index.php') 
     soup = BeautifulSoup(main.read(),'lxml') 

     cj.save() 

Answer 2

values = {'unam' : name, 'pass' : passw}这里假定表单元素名称是unam和pass从网站到不同网站。例如，如果您尝试登录Facebook，则字段名称为email和pass。然后，该行必须修改为 values = {'email' : name, 'pass' : passw}

检查您需要登录的网页中的元素以确定名称并按照这些名称使用它们。