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"""NotebookExporter class"""
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# Copyright (c) IPython Development Team.
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# Distributed under the terms of the Modified BSD License.
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from .exporter import Exporter
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from IPython.nbformat import current as nbformat
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from IPython.utils.traitlets import Enum
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class NotebookExporter(Exporter):
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"""Exports to an IPython notebook."""
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nbformat_version = Enum(list(range(2, nbformat.current_nbformat + 1)),
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default_value=nbformat.current_nbformat,
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config=True,
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help="""The nbformat version to write.
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Use this to downgrade notebooks.
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"""
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)
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def _file_extension_default(self):
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return 'ipynb'
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output_mimetype = 'application/json'
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def from_notebook_node(self, nb, resources=None, **kw):
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nb_copy, resources = super(NotebookExporter, self).from_notebook_node(nb, resources, **kw)
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if self.nbformat_version != nbformat.current_nbformat:
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resources['output_suffix'] = '.v%i' % self.nbformat_version
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else:
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resources['output_suffix'] = '.nbconvert'
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output = nbformat.writes(nb_copy, version=self.nbformat_version)
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return output, resources
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