Python实现设置windows桌面壁纸代码分享

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()