code: def rfc2426(self):
          
          return rfc2425encode("adr",u';'.join(quote_semicolon(val) for val in
                  (self.pobox,self.extadr,self.street,self.locality,
                          self.region,self.pcode,self.ctry)),
                  {"type":",".join(self.type)})
docs: RFC2426-encode the field content.
  
          :return: the field in the RFC 2426 format.
          :returntype: `str`