from BeautifulSoup import BeautifulStoneSoup

f = open('wunderdata.xml', 'r')
fout = open('wunderdatacsv.txt', 'w')

xml = f.read()

soup = BeautifulStoneSoup(xml)
observations = soup.findAll('observation')
for o in observations
	outLine = o.date.string + "," + o.max_temperature.string
	fout.write(outLine, "\n")

f.close()
fout.close()