mirror of
https://github.com/aykhans/AzSuicideDataVisualization.git
synced 2025-04-22 10:28:02 +00:00
91 lines
2.5 KiB
Python
91 lines
2.5 KiB
Python
"""Code for converting notebooks to and from the v2 format."""
|
|
|
|
# Copyright (c) IPython Development Team.
|
|
# Distributed under the terms of the Modified BSD License.
|
|
|
|
from .nbbase import nbformat, nbformat_minor
|
|
|
|
|
|
def _unbytes(obj):
|
|
"""There should be no bytes objects in a notebook
|
|
|
|
v2 stores png/jpeg as b64 ascii bytes
|
|
"""
|
|
if isinstance(obj, dict):
|
|
for k, v in obj.items():
|
|
obj[k] = _unbytes(v)
|
|
elif isinstance(obj, list):
|
|
for i, v in enumerate(obj):
|
|
obj[i] = _unbytes(v)
|
|
elif isinstance(obj, bytes):
|
|
# only valid bytes are b64-encoded ascii
|
|
obj = obj.decode("ascii")
|
|
return obj
|
|
|
|
|
|
def upgrade(nb, from_version=2, from_minor=0):
|
|
"""Convert a notebook to v3.
|
|
|
|
Parameters
|
|
----------
|
|
nb : NotebookNode
|
|
The Python representation of the notebook to convert.
|
|
from_version : int
|
|
The original version of the notebook to convert.
|
|
from_minor : int
|
|
The original minor version of the notebook to convert (only relevant for v >= 3).
|
|
"""
|
|
if from_version == 2:
|
|
# Mark the original nbformat so consumers know it has been converted.
|
|
nb.nbformat = nbformat
|
|
nb.nbformat_minor = nbformat_minor
|
|
|
|
nb.orig_nbformat = 2
|
|
nb = _unbytes(nb)
|
|
for ws in nb["worksheets"]:
|
|
for cell in ws["cells"]:
|
|
cell.setdefault("metadata", {})
|
|
return nb
|
|
elif from_version == 3:
|
|
if from_minor != nbformat_minor:
|
|
nb.orig_nbformat_minor = from_minor
|
|
nb.nbformat_minor = nbformat_minor
|
|
return nb
|
|
else:
|
|
raise ValueError(
|
|
"Cannot convert a notebook directly from v%s to v3. "
|
|
"Try using the nbformat.convert module." % from_version
|
|
)
|
|
|
|
|
|
def heading_to_md(cell):
|
|
"""turn heading cell into corresponding markdown"""
|
|
cell.cell_type = "markdown"
|
|
level = cell.pop("level", 1)
|
|
cell.source = "#" * level + " " + cell.source
|
|
|
|
|
|
def raw_to_md(cell):
|
|
"""let raw passthrough as markdown"""
|
|
cell.cell_type = "markdown"
|
|
|
|
|
|
def downgrade(nb):
|
|
"""Convert a v3 notebook to v2.
|
|
|
|
Parameters
|
|
----------
|
|
nb : NotebookNode
|
|
The Python representation of the notebook to convert.
|
|
"""
|
|
if nb.nbformat != 3:
|
|
return nb
|
|
nb.nbformat = 2
|
|
for ws in nb.worksheets:
|
|
for cell in ws.cells:
|
|
if cell.cell_type == "heading":
|
|
heading_to_md(cell)
|
|
elif cell.cell_type == "raw":
|
|
raw_to_md(cell)
|
|
return nb
|