code: def get_all_parts(self, max_parts=None, part_number_marker=None):
          
          self._parts = []
          query_args = 'uploadId=%s' % self.id
          if max_parts:
              query_args += '&max-parts=%d' % max_parts
          if part_number_marker:
              query_args += '&part-number-marker=%s' % part_number_marker
          response = self.bucket.connection.make_request('GET', self.bucket.name,
                                                         self.key_name,
                                                         query_args=query_args)
          body = response.read()
          if response.status == 200:
              h = handler.XmlHandler(self, self)
              xml.sax.parseString(body, h)
              return self._parts
docs: Return the uploaded parts of this MultiPart Upload.  This is
          a lower-level method that requires you to manually page through
          results.  To simplify this process, you can just use the
          object itself as an iterator and it will automatically handle
          all of the paging with S3.