gistfile1.py

try: 
    import lxml.etree as ET
except:
    import xml.etree.ElementTree as ET
import requests

def getRss():
    lang = "fi"
    url = "http://feeds.yle.fi/areena/v1/series/1-1440981.rss?lang={0}".format(lang)
    return requests.get(url).content

def getAudioUrl():
    channel = "Yle Radio Suomi"
    
    rssdoc = getRss()
    #ET.register_namespace("media", "http://search.yahoo.com/mrss/")
    rssEt = ET.fromstring(rssdoc)

    prefixes = {"media": "http://search.yahoo.com/mrss/"}
    xpath = "./rss/channel/item[media:credit='{0}'][1]/enclosure".format(channel)
    for elem in rssEt.findall(xpath, namespaces=prefixes):
        print (elem)