I am trying to parse a xml in python with lxml and elementree, but it doesn't works due to namespaces.
I tried xpath but I had no luck. 
Also, how to convert an xml document into utf-8 format because now I need to add  to xml for it to parse.
data = """<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
< 
    