python设置windows桌面壁纸

每天换一个壁纸，每天好心情。

 

# -*- coding: UTF-8 -*- 

from __future__ import unicode_literals
import Image
import datetime
import win32gui,win32con,win32api
import re
from HttpWrapper import SendRequest

StoreFolder = "c:\\dayImage"

def setWallpaperFromBMP(imagepath) :
    k = win32api.RegOpenKeyEx(win32con.HKEY_CURRENT_USER, "Control Panel\\Desktop", 0,win32con.KEY_SET_VALUE)
    win32api.RegSetValueEx(k, "WallpaperStyle", 0, win32con.REG_SZ, "2") #2拉伸适应桌面,0桌面居中
    win32api.RegSetValueEx(k, "TileWallpaper", 0, win32con.REG_SZ, "0")
    win32gui.SystemParametersInfo(win32con.SPI_SETDESKWALLPAPER,imagepath, 1 + 2)

def setWallPaper(imagePath) :
     "" "
    Given a path to an image, convert it to bmp and set it as wallpaper
    " ""
    bmpImage = Image. open(imagePath)
    newPath = StoreFolder + '\\mywallpaper.bmp'
    bmpImage.save(newPath, "BMP")
    setWallpaperFromBMP(newPath)

def getPicture() :
    url = "http://photography.nationalgeographic.com/photography/photo-of-the-day/"
    h = SendRequest(url)
     if h.GetSource() :
        r = re.findall( '<div class="download_link"><a href="(.*?)">Download',h.GetSource())
         if r :
             return SendRequest(r[ 0]).GetSource()
         else :
             print "解析图片地址出错，请检查正则表达式是否正确"
             return None


def setWallpaperOfToday() :
    img = getPicture()
     if img :
        path = StoreFolder + "\\%s.jpg" % datetime.date.today()
        f = open(path, "wb")
        f.write(img)
        f.close()
        setWallPaper(path)

setWallpaperOfToday()
print 'Wallpaper set ok!'

 

 

其中的httpwrapper是我写的一个http访问的封装：

 

#!/usr/bin/env python 
# -*- coding: UTF-8 -*-
#-------------------------------------------------------------------------------
# Name: 对http访问的封装
#
# Author: qianlifeng
#
# Created: 10-02-2012
#-------------------------------------------------------------------------------

import base64
import urllib
import urllib2
import time
import re
import sys

class SendRequest :
   "" "
  网页请求增强类
  SendRequest('http://xxx.com',data=dict, type='POST', auth='base',user='xxx', password='xxx')
  " ""
   def __init__( self, url, data = None, method = 'GET', auth = None, user = None, password = None, cookie = None, **header) :
     "" "
    url: 请求的url，不能为空
    date: 需要post的内容，必须是字典
    method: Get 或者 Post，默认为Get
    auth: 'base' 或者 'cookie'
    user: 用于base认证的用户名
    password: 用于base认证的密码
    cookie: 请求附带的cookie，一般用于登录后的认证
    其他头信息:
    e.g. referer='www.sina.com.cn'
    " ""

     self.url = url
     self.data = data
     self.method = method
     self.auth = auth
     self.user = user
     self.password = password
     self.cookie = cookie

     if 'referer' in header :
         self.referer = header[referer]
     else :
         self.referer = None

     if 'user-agent' in header :
         self.user_agent = header[user -agent]
     else :
## self.user_agent = 'Mozilla/5.0 (Windows NT 5.1; rv:8.0) Gecko/20100101 Firefox/8.0'
         self.user_agent = 'Mozilla/5.0 (iPhone; U; CPU iPhone OS 3_0 like Mac OS X; en-us) AppleWebKit/528.18 (KHTML, like Gecko) Version/4.0 Mobile/7A341 Safari/528.16'

     self.__SetupRequest()
     self.__SendRequest()

   def __SetupRequest( self) :

     if self.url is None or self.url == '' :
         raise 'url 不能为空!'

     #访问方式设置
     if self.method.lower() == 'post' :
         self.Req = urllib2.Request( self.url, urllib.urlencode( self.data))

     elif self.method.lower() == 'get' :
         if self.data == None :
             self.Req = urllib2.Request( self.url)
         else :
             self.Req = urllib2.Request( self.url + '?' + urllib.urlencode( self.data))

     #设置认证信息
     if self.auth == 'base' :
         if self.user == None or self.password == None :
             raise 'The user or password was not given!'
         else :
            auth_info = base64.encodestring( self.user + ':' + self.password).replace( '\n', '')
            auth_info = 'Basic ' + auth_info
             self.Req.add_header( "Authorization", auth_info)

     elif self.auth == 'cookie' :
         if self.cookie == None :
             raise 'The cookie was not given!'
         else :
             self.Req.add_header( "Cookie", self.cookie)


     if self.referer :
         self.Req.add_header( 'referer', self.referer)
     if self.user_agent :
         self.Req.add_header( 'user-agent', self.user_agent)


   def __SendRequest( self) :

     try :
       self.Res = urllib2.urlopen( self.Req)
       self.source = self.Res.read()
       self.code = self.Res.getcode()
       self.head_dict = self.Res.info().dict
       self.Res.close()
     except :
       print "Error: HttpWrapper=>_SendRequest ", sys.exc_info()[ 1]


   def GetResponseCode( self) :
     "" "
    得到服务器返回的状态码(200表示成功,404网页不存在)
    " ""
     return self.code

   def GetSource( self) :
     "" "
    得到网页源代码，需要解码后在使用
    " ""
     if "source" in dir( self) :
         return self.source
     return u ''

   def GetHeaderInfo( self) :
     "" "
    u'得到响应头信息'
    " ""
     return self.head_dict

   def GetCookie( self) :
     "" "
    得到服务器返回的Cookie，一般用于登录后续操作
    " ""
     if 'set-cookie' in self.head_dict :
       return self.head_dict[ 'set-cookie']
     else :
       return None

   def GetContentType( self) :
     "" "
    得到返回类型
    " ""
     if 'content-type' in self.head_dict :
       return self.head_dict[ 'content-type']
     else :
       return None

   def GetCharset( self) :
     "" "
    尝试得到网页的编码
    如果得不到返回None
    " ""
    contentType = self.GetContentType()
     if contentType is not None :
        index = contentType. find( "charset")
         if index > 0 :
            return contentType[index + 8 :]
     return None

   def GetExpiresTime( self) :
     "" "
    得到网页过期时间
    " ""
     if 'expires' in self.head_dict :
       return self.head_dict[ 'expires']
     else :
       return None

   def GetServerName( self) :
     "" "
    得到服务器名字
    " ""
     if 'server' in self.head_dict :
       return self.head_dict[ 'server']
     else :
       return None

__all__ = [SendRequest,]

if __name__ == '__main__' :
    b = SendRequest( "http://www.baidu.com")
     print b.GetSource()