Something

#!/usr/bin/python
import urllib2
import sys
from sys import argv
from BeautifulSoup import BeautifulSoup

def urlGet(url,valAmount,valFrom,valTo):
  request = urllib2.Request(url, None, {'Amount':valAmount, 'From':valFrom, 'To':valTo, 'User-agent'
: 'Firefox/2.0.0.3',})
  return urllib2.urlopen(request)

def processPage(page):
  soup = BeautifulSoup(page)
  print soup.prettify()

def main():
  page = urlGet("http://www.xe.com/ucc/convert.cgi",argv[1],argv[2],argv[3])
  processPage(page)