313     iterparts = unbundler.iterparts()

   313     iterparts = unbundler.iterparts()

   314     part = None

   314     part = None

   315     try:

   315     try:

   316         for part in iterparts:

   316         for part in iterparts:

   317             _processpart(op, part)

   317             _processpart(op, part)

   319         for part in iterparts:

   319         for part in iterparts:

   320             # consume the bundle content

   320             # consume the bundle content

   321             part.seek(0, 2)

   321             part.seek(0, 2)

   322         # Small hack to let caller code distinguish exceptions from bundle2

   322         # Small hack to let caller code distinguish exceptions from bundle2

   323         # processing from processing the old format. This is mostly

   323         # processing from processing the old format. This is mostly

   760         ## payload

   760         ## payload

   761         try:

   761         try:

   762             for chunk in self._payloadchunks():

   762             for chunk in self._payloadchunks():

   763                 yield _pack(_fpayloadsize, len(chunk))

   763                 yield _pack(_fpayloadsize, len(chunk))

   764                 yield chunk

   764                 yield chunk

   766             # backup exception data for later

   766             # backup exception data for later

   767             exc_info = sys.exc_info()

   767             exc_info = sys.exc_info()

   768             msg = 'unexpected error: %s' % exc

   768             msg = 'unexpected error: %s' % exc

   769             interpart = bundlepart('error:abort', [('message', msg)],

   769             interpart = bundlepart('error:abort', [('message', msg)],

   770                                    mandatory=False)

   770                                    mandatory=False)