这篇文章主要介绍了Python实现登录人人网并抓取新鲜事的方法,可实现Python模拟登陆并抓取新鲜事的功能,需要的朋友可以参考下

本文实例讲述了Python实现登录人人网并抓取新鲜事的方法。分享给大家供大家参考。具体如下：

这里演示了Python登录人人网并抓取新鲜事的方法(抓取后的排版不太美观~~)

from sgmllib import SGMLParser

import sys,urllib2,urllib,cookielib

class spider(SGMLParser):

def __init__(self,email,password):

SGMLParser.__init__(self)

self.h3=False

self.h3_is_ready=False

self.div=False

self.h3_and_div=False

self.a=False

self.depth=0

self.names=""

self.dic={}

self.email=email

self.password=password

self.domain='renren.com'

try:

cookie=cookielib.CookieJar()

cookieProc=urllib2.HTTPCookieProcessor(cookie)

except:

raise

else:

opener=urllib2.build_opener(cookieProc)

urllib2.install_opener(opener)

def login(self):

url='http://www.renren.com/PLogin.do'

postdata={

'email':self.email,

'password':self.password,

'domain':self.domain

}

req=urllib2.Request(

url,

urllib.urlencode(postdata)

)

self.file=urllib2.urlopen(req).read()

#print self.file

def start_h3(self,attrs):

self.h3 = True

def end_h3(self):

self.h3=False

self.h3_is_ready=True

def start_a(self,attrs):

if self.h3 or self.div:

self.a=True

def end_a(self):

self.a=False

def start_div(self,attrs):

if self.h3_is_ready == False:

return

if self.div==True:

self.depth += 1

for k,v in attrs:

if k == 'class' and v == 'content':

self.div=True;

self.h3_and_div=True #h3 and div is connected

def end_div(self):

if self.depth == 0:

self.div=False

self.h3_and_div=False

self.h3_is_ready=False

self.names=""

if self.div == True:

self.depth-=1

def handle_data(self,text):

#record the name

if self.h3 and self.a:

self.names+=text

#record says

if self.h3 and (self.a==False):

if not text:pass

else: self.dic.setdefault(self.names,[]).append(text)

return

if self.h3_and_div:

self.dic.setdefault(self.names,[]).append(text)

def show(self):

type = sys.getfilesystemencoding()

for key in self.dic:

print ( (''.join(key)).replace(' ','')).decode('utf-8').encode(type), \

( (''.join(self.dic[key])).replace(' ','')).decode('utf-8').encode(type)

renrenspider=spider('your email','your password')

renrenspider.login()

renrenspider.feed(renrenspider.file)

renrenspider.show()

希望本文所述对大家的Python程序设计有所帮助。