from eulexistdb import db
from eulexistdb.models import XmlModel
from eulexistdb.query import QuerySet

db = db.ExistDB(server_url=EXISTDB_SERVER_URL,username='user1',password='password1')
qs = QuerySet(using=db,model=XmlModel,xpath="//tag1")

<tag1>
  <tag2>value2</tag2>
  <tag3>value3</tag3>
</tag1>