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"""The basic dict based notebook format.
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The Python representation of a notebook is a nested structure of
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dictionary subclasses that support attribute access
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(IPython.utils.ipstruct.Struct). The functions in this module are merely
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helpers to build the structs in the right form.
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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 pprint
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import uuid
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from IPython.utils.ipstruct import Struct
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from IPython.utils.py3compat import cast_unicode
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#-----------------------------------------------------------------------------
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# Code
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#-----------------------------------------------------------------------------
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# Change this when incrementing the nbformat version
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nbformat = 3
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nbformat_minor = 0
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class NotebookNode(Struct):
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pass
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def from_dict(d):
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if isinstance(d, dict):
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newd = NotebookNode()
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for k,v in d.items():
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newd[k] = from_dict(v)
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return newd
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elif isinstance(d, (tuple, list)):
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return [from_dict(i) for i in d]
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else:
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return d
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def new_output(output_type=None, output_text=None, output_png=None,
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output_html=None, output_svg=None, output_latex=None, output_json=None,
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output_javascript=None, output_jpeg=None, prompt_number=None,
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ename=None, evalue=None, traceback=None, stream=None, metadata=None):
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"""Create a new code cell with input and output"""
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output = NotebookNode()
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if output_type is not None:
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output.output_type = unicode(output_type)
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if metadata is None:
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metadata = {}
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if not isinstance(metadata, dict):
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raise TypeError("metadata must be dict")
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output.metadata = metadata
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if output_type != 'pyerr':
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if output_text is not None:
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output.text = cast_unicode(output_text)
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if output_png is not None:
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output.png = cast_unicode(output_png)
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if output_jpeg is not None:
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output.jpeg = cast_unicode(output_jpeg)
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if output_html is not None:
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output.html = cast_unicode(output_html)
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if output_svg is not None:
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output.svg = cast_unicode(output_svg)
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if output_latex is not None:
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output.latex = cast_unicode(output_latex)
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if output_json is not None:
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output.json = cast_unicode(output_json)
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if output_javascript is not None:
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output.javascript = cast_unicode(output_javascript)
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if output_type == u'pyout':
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if prompt_number is not None:
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output.prompt_number = int(prompt_number)
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if output_type == u'pyerr':
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if ename is not None:
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output.ename = cast_unicode(ename)
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if evalue is not None:
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output.evalue = cast_unicode(evalue)
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if traceback is not None:
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output.traceback = [cast_unicode(frame) for frame in list(traceback)]
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if output_type == u'stream':
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output.stream = 'stdout' if stream is None else cast_unicode(stream)
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return output
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def new_code_cell(input=None, prompt_number=None, outputs=None,
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language=u'python', collapsed=False, metadata=None):
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"""Create a new code cell with input and output"""
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cell = NotebookNode()
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cell.cell_type = u'code'
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if language is not None:
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cell.language = cast_unicode(language)
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if input is not None:
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cell.input = cast_unicode(input)
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if prompt_number is not None:
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cell.prompt_number = int(prompt_number)
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if outputs is None:
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cell.outputs = []
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else:
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cell.outputs = outputs
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if collapsed is not None:
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cell.collapsed = bool(collapsed)
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cell.metadata = NotebookNode(metadata or {})
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return cell
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def new_text_cell(cell_type, source=None, rendered=None, metadata=None):
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"""Create a new text cell."""
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cell = NotebookNode()
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# VERSIONHACK: plaintext -> raw
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# handle never-released plaintext name for raw cells
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if cell_type == 'plaintext':
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cell_type = 'raw'
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if source is not None:
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cell.source = cast_unicode(source)
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if rendered is not None:
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cell.rendered = cast_unicode(rendered)
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cell.metadata = NotebookNode(metadata or {})
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cell.cell_type = cell_type
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return cell
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def new_heading_cell(source=None, rendered=None, level=1, metadata=None):
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"""Create a new section cell with a given integer level."""
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cell = NotebookNode()
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cell.cell_type = u'heading'
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if source is not None:
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cell.source = cast_unicode(source)
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if rendered is not None:
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cell.rendered = cast_unicode(rendered)
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cell.level = int(level)
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cell.metadata = NotebookNode(metadata or {})
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return cell
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def new_worksheet(name=None, cells=None, metadata=None):
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"""Create a worksheet by name with with a list of cells."""
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ws = NotebookNode()
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if name is not None:
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ws.name = cast_unicode(name)
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if cells is None:
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ws.cells = []
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else:
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ws.cells = list(cells)
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ws.metadata = NotebookNode(metadata or {})
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return ws
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def new_notebook(name=None, metadata=None, worksheets=None):
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"""Create a notebook by name, id and a list of worksheets."""
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nb = NotebookNode()
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nb.nbformat = nbformat
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nb.nbformat_minor = nbformat_minor
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if worksheets is None:
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nb.worksheets = []
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else:
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nb.worksheets = list(worksheets)
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if metadata is None:
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nb.metadata = new_metadata()
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else:
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nb.metadata = NotebookNode(metadata)
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if name is not None:
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nb.metadata.name = cast_unicode(name)
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return nb
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def new_metadata(name=None, authors=None, license=None, created=None,
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modified=None, gistid=None):
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"""Create a new metadata node."""
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metadata = NotebookNode()
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if name is not None:
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metadata.name = cast_unicode(name)
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if authors is not None:
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metadata.authors = list(authors)
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if created is not None:
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metadata.created = cast_unicode(created)
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if modified is not None:
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metadata.modified = cast_unicode(modified)
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if license is not None:
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metadata.license = cast_unicode(license)
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if gistid is not None:
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metadata.gistid = cast_unicode(gistid)
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return metadata
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def new_author(name=None, email=None, affiliation=None, url=None):
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"""Create a new author."""
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author = NotebookNode()
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if name is not None:
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author.name = cast_unicode(name)
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if email is not None:
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author.email = cast_unicode(email)
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if affiliation is not None:
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author.affiliation = cast_unicode(affiliation)
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if url is not None:
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author.url = cast_unicode(url)
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return author
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