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"""The main API for the v3 notebook format.
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Authors:
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* Brian Granger
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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 COPYING, 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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import os
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from .nbbase import (
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NotebookNode,
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new_code_cell, new_text_cell, new_notebook, new_output, new_worksheet,
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new_metadata, new_author, new_heading_cell, nbformat, nbformat_minor,
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nbformat_schema
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)
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from .nbjson import reads as reads_json, writes as writes_json
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from .nbjson import reads as read_json, writes as write_json
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from .nbjson import to_notebook as to_notebook_json
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from .nbpy import reads as reads_py, writes as writes_py
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from .nbpy import reads as read_py, writes as write_py
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from .nbpy import to_notebook as to_notebook_py
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from .convert import downgrade, upgrade
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#-----------------------------------------------------------------------------
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# Code
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#-----------------------------------------------------------------------------
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def parse_filename(fname):
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"""Parse a notebook filename.
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This function takes a notebook filename and returns the notebook
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format (json/py) and the notebook name. This logic can be
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summarized as follows:
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* notebook.ipynb -> (notebook.ipynb, notebook, json)
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* notebook.json -> (notebook.json, notebook, json)
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* notebook.py -> (notebook.py, notebook, py)
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* notebook -> (notebook.ipynb, notebook, json)
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Parameters
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----------
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fname : unicode
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The notebook filename. The filename can use a specific filename
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extention (.ipynb, .json, .py) or none, in which case .ipynb will
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be assumed.
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Returns
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-------
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(fname, name, format) : (unicode, unicode, unicode)
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The filename, notebook name and format.
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"""
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basename, ext = os.path.splitext(fname)
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if ext == u'.ipynb':
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format = u'json'
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elif ext == u'.json':
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format = u'json'
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elif ext == u'.py':
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format = u'py'
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else:
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basename = fname
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fname = fname + u'.ipynb'
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format = u'json'
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return fname, basename, format
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