IPython/nbformat/notebooknode.py

"""NotebookNode - adding attribute access to dicts"""

from IPython.utils.ipstruct import Struct

class NotebookNode(Struct):
    """A dict-like node with attribute-access"""
    pass

def from_dict(d):
    """Convert dict to dict-like NotebookNode
    
    Recursively converts any dict in the container to a NotebookNode
    """
    if isinstance(d, dict):
        return NotebookNode({k:from_dict(v) for k,v in d.items()})
    elif isinstance(d, (tuple, list)):
        return [from_dict(i) for i in d]
    else:
        return d