import requests
import lxml.html
def parse(url):
api = requests.get(url)
tree = lxml.html.document_fromstring(api.text)
text_original = tree.xpath('//*[@id="market_commodity_forsale"]/span[2]')
print(text_original)
parse('https://steamcommunity.com/market/listings/730/Shattered%20Web%20Case')