Erro ao processar retorno do PagSeguro

[osantana]

Traceback (most recent call last):

File "/python/lib/python2.7/site-packages/django/core/handlers/base.py", line 111, in get_response
response = callback(request, _callback_args, *_callback_kwargs)
File "/python/lib/python2.7/site-packages/django/views/generic/base.py", line 48, in view
return self.dispatch(request, _args, *_kwargs)
File "/python/lib/python2.7/site-packages/django/utils/decorators.py", line 25, in _wrapper
return bound_func(_args, *_kwargs)
File "/python/lib/python2.7/site-packages/django/views/decorators/csrf.py", line 77, in wrapped_view
return view_func(_args, *_kwargs)
File "/python/lib/python2.7/site-packages/django/utils/decorators.py", line 21, in bound_func
return func(self, _args2, *_kwargs2)
File "/app/payment/views.py", line 128, in dispatch
return super(NotificationView, self).dispatch(_args, *_kwargs)
File "/python/lib/python2.7/site-packages/django/views/generic/base.py", line 69, in dispatch
return handler(request, _args, *_kwargs)
File "/app/app/payment/views.py", line 133, in post
status, payment_id, price = self.transaction(self.transaction_code)
ValueError: need more than 2 values to unpack

<WSGIRequest path:/payment/notification/, GET:<QueryDict: {}>, POST:<QueryDict: {u'notificationCode': [u'XXXXX-XXXXX-XXXXX-XXXX'], u'notificationType': [u'transaction']}>, COOKIES:{}, META:{'CONTENT_LENGTH': ‘85’,