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65 lines
2.0 KiB
Python
65 lines
2.0 KiB
Python
"""Code for converting notebooks to and from the v2 format.
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Authors:
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* Brian Granger
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* Jonathan Frederic
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"""
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# -----------------------------------------------------------------------------
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# Copyright (C) 2008-2011 The IPython Development Team
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#
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# Distributed under the terms of the BSD License. The full license is in
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# the file LICENSE, distributed as part of this software.
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# -----------------------------------------------------------------------------
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# -----------------------------------------------------------------------------
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# Imports
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# -----------------------------------------------------------------------------
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from __future__ import annotations
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from .nbbase import new_code_cell, new_notebook, new_text_cell, new_worksheet
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# -----------------------------------------------------------------------------
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# Code
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# -----------------------------------------------------------------------------
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def upgrade(nb, from_version=1):
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"""Convert a notebook to the v2 format.
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Parameters
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----------
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nb : NotebookNode
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The Python representation of the notebook to convert.
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from_version : int
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The version of the notebook to convert from.
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"""
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if from_version == 1:
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newnb = new_notebook()
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ws = new_worksheet()
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for cell in nb.cells:
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if cell.cell_type == "code":
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newcell = new_code_cell(
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input=cell.get("code"), prompt_number=cell.get("prompt_number")
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)
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elif cell.cell_type == "text":
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newcell = new_text_cell("markdown", source=cell.get("text"))
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ws.cells.append(newcell)
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newnb.worksheets.append(ws)
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return newnb
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raise ValueError("Cannot convert a notebook from v%s to v2" % from_version)
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def downgrade(nb):
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"""Convert a v2 notebook to v1.
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Parameters
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----------
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nb : NotebookNode
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The Python representation of the notebook to convert.
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"""
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msg = "Downgrade from notebook v2 to v1 is not supported."
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raise Exception(msg)
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