每天换一个新桌面的python

This is a python snippet to set wallpaper as the photo of the day in national geographic.

1. install python form http://www.python.org/download/
2. install python image library(PLI) from http://www.pythonware.com/products/pil/
3. say the code below and run it by python

python 代码

"""
Set the wallpaper as the picture got from national geographic picture of the day
by seasons@gmail.com
"""
import ctypes
import Image
import calendar
import urllib
import socket

STOREDIR = 'C:/lg_wallpaper/pod/'

def setWallpaperFromBMP(imagepath):
    SPI_SETDESKWALLPAPER = 20 # According to http://support.microsoft.com/default.aspx?scid=97142
    ctypes.windll.user32.SystemParametersInfoA(SPI_SETDESKWALLPAPER, 0, imagepath , 0) #SPIF_UPDATEINIFILE | SPIF_SENDWININICHANGE

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

def getPicture(fname):
    sock = urllib.urlopen("http://lava.nationalgeographic.com/pod/index.html")
    htmlSource = sock.read()
    sock.close()
    pos1 = htmlSource.find('sm_wallpaper')
    pos2 = htmlSource.find('/pod/pictures/normal')
    filename = htmlSource[pos1+13:pos2-12]
    fileurl = 'http://lava.nationalgeographic.com/pod/pictures/lg_wallpaper/'+filename
    urllib.urlretrieve(fileurl, fname)
    print 'got the picture from ' + fileurl

def setWallpaperOfToday():
    filename = STOREDIR + str(calendar.datetime.date.today()) + '.jpg'
    print filename
    getPicture(filename)
    setWallPaper(filename)

setWallpaperOfToday()
print 'Wallpaper set ok!'