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python抓取bing主页背景图片

时间:2017-07-10 11:15:29      阅读:178      评论:0      收藏:0      [点我收藏+]

标签:find   原因   ora   pattern   family   ace   ror   save   .com   

最初Python2写法:
#!/usr/bin/env python

# -*- coding:utf-8 -*-

# -*- author:nancy -*-

# python2抓取bing主页所有背景图片

import urllib,re,sys,os

def get_bing_backphoto():

    if (os.path.exists(‘photos‘)== False):

        os.mkdir(‘photos‘)

    for i in range(0,1000):

        url = ‘http://cn.bing.com/HPImageArchive.aspx?format=js&idx=‘+str(i)

               +‘&n=1&nc=1361089515117&FORM=HYLH1‘

        html = urllib.urlopen(url).read()

        if html == ‘null‘:

            print ‘open & read bing error!‘

            sys.exit(-1)

        reg = re.compile(‘"url":"(.*?)","urlbase"‘,re.S)

        text = re.findall(reg,html)

        #http://s.cn.bing.net/az/hprichbg/rb/LongJi_ZH-CN8658435963_1366x768.jpg

        for imgurl in text:

            right = imgurl.rindex(‘/‘)

            name = imgurl.replace(imgurl[:right+1],‘‘)

            savepath = ‘photos/‘+ name

            urllib.urlretrieve(imgurl, savepath)

            print name + ‘ save success!‘

get_bing_backphoto()

Python3与Python2的错误调整:
TypeError: can‘t use a string pattern on a bytes-like object
 原因为Python3 findall数据类型用bytes类型,因此在正则表达式前应添加html = html.decode(‘utf-8‘)。
 “AttributeError: ‘module‘ object has no attribute ‘urlopen‘”
 原因是Python3里的urllib模块已经发生改变,此处的urllib都应该改成urllib.request。
由于bing图片对外接口的图片json格式变了,python第三方库的导入格式有变化,因此代码调整如下:

#!/usr/bin/env python

# -*- coding:utf-8 -*-

# -*- author:nancy-*-

# python3抓取bing主页所有背景图片

import urllib.request,re,sys,os

def get_bing_backphoto():

    if (os.path.exists(‘photos‘)== False):

        os.mkdir(‘photos‘)

    for i in range(0,10):

        url = http://cn.bing.com/HPImageArchive.aspx?format=js&idx=+str(i)+‘&n=1&nc=1361089515117&FORM=HYLH1‘

        html = urllib.request.urlopen(url).read()

        if html == ‘null‘:

            print( ‘open & read bing error!‘)

            sys.exit(-1)

        html = html.decode(‘utf-8‘)

        html = html.replace(‘/az/‘,http://s.cn.bing.net/az/)

        reg = re.compile(‘"url":"(.*?)","urlbase"‘,re.S)

        text = re.findall(reg,html)

        for imgurl in text :

            right = imgurl.rindex(‘/‘)

            print(imgurl)

            name = imgurl.replace(imgurl[:right+1],‘‘)

            savepath = ‘photos/‘+ name

            urllib.request.urlretrieve(imgurl, savepath)

            print (name + ‘ save success!‘)

get_bing_backphoto()

python抓取bing主页背景图片

标签:find   原因   ora   pattern   family   ace   ror   save   .com   

原文地址:http://www.cnblogs.com/camilla/p/7144768.html

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