Astronomy Picture of the Day

apod.py

from re import search
from urllib2 import urlopen
root_url = 'http://apod.nasa.gov/apod/'
html = urlopen(root_url).read()
m = search('a href="(.+jpg)\"', html)
img = urlopen(root_url + m.groups()[0]).read()
with open(m.groups()[0].split('/')[-1], 'wb') as w:
 	w.write(img)