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# -*- coding: utf-8 -*-

"""Payload system for IPython.

Authors:

* Fernando Perez

* Brian Granger

"""

#-----------------------------------------------------------------------------

# Copyright (C) 2008-2011 The IPython Development Team

#

# Distributed under the terms of the BSD License. The full license is in

# the file COPYING, distributed as part of this software.

#-----------------------------------------------------------------------------

#-----------------------------------------------------------------------------

# Imports

#-----------------------------------------------------------------------------

from IPython.config.configurable import Configurable

from IPython.utils.traitlets import List

#-----------------------------------------------------------------------------

# Main payload class

#-----------------------------------------------------------------------------

class PayloadManager(Configurable):

_payload = List([])

def write_payload(self, data):

if not isinstance(data, dict):

raise TypeError('Each payload write must be a dict, got: %r' % data)

self._payload.append(data)

def read_payload(self):

return self._payload

def clear_payload(self):

self._payload = []