Kefkius

import argparse
from lxml import html
import requests
import re
import sys

class CoinMarketCap(object):
    def __init__(self, currency):
        self.tree = html.fromstring(requests.get('http://coinmarketcap.com').text)
        data = self.tree.xpath('//div[@id="currency-exchange-rates"]/@data-{}'.format(currency))