Grab current price of bitcoin in USD from coinbase.com.

coinbase_price.py

#!/usr/bin/env python
from bs4 import BeautifulSoup
import urllib2

site = "https://coinbase.com/"

# Coinbase judges you.
hdr = {
    'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.11 (KHTML, like Gecko) Chrome/23.0.1271.64 Safari/537.11',
    'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
    'Accept-Charset': 'ISO-8859-1,utf-8;q=0.7,*;q=0.3',
    'Accept-Encoding': 'none',
    'Accept-Language': 'en-US,en;q=0.8',
    'Connection': 'keep-alive'
}
req = urllib2.Request(site,  headers=hdr)

try:
    page = urllib2.urlopen(req)
except urllib2.HTTPError, e:
    print e.fp.read()

soup = BeautifulSoup(page.read())

print soup.find_all("li", class_="top-balance")[0].a.text.strip("Current Buy Price: ")