449         """return a tuple (type, source, extid) for the entity with id <eid>"""

   449         """return a tuple (type, source, extid) for the entity with id <eid>"""

   450         sql = 'SELECT type, source, extid FROM entities WHERE eid=%s' % eid

   450         sql = 'SELECT type, source, extid FROM entities WHERE eid=%s' % eid

   451         try:

   451         try:

   452             res = session.system_sql(sql).fetchone()

   452             res = session.system_sql(sql).fetchone()

   453         except:

   453         except:

   454             raise UnknownEid(eid)

   455             raise UnknownEid(eid)

   455         if res is None:

   456         if res is None:

   456             raise UnknownEid(eid)

   457             raise UnknownEid(eid)

   457         return res

   458         return res

   458 

   459