"""The basic dict based notebook format.

The Python representation of a notebook is a nested structure of
dictionary subclasses that support attribute access
(IPython.utils.ipstruct.Struct). The functions in this module are merely
helpers to build the structs in the right form.
"""

# Copyright (c) IPython Development Team.
# Distributed under the terms of the Modified BSD License.

import pprint
import uuid

from IPython.utils.ipstruct import Struct
from IPython.utils.py3compat import cast_unicode, unicode_type


# Change this when incrementing the nbformat version
nbformat = 4
nbformat_minor = 0
nbformat_schema = 'v4.withref.json'

class NotebookNode(Struct):
    pass


def from_dict(d):
    if isinstance(d, dict):
        newd = NotebookNode()
        for k,v in d.items():
            newd[k] = from_dict(v)
        return newd
    elif isinstance(d, (tuple, list)):
        return [from_dict(i) for i in d]
    else:
        return d