A defaultdict like dictionary that allows accessing nested keys without getting KeyErrors or TypeErrors

ndict.py

# Required: boltons, nested_dict
from boltons.iterutils import remap
from nested_dict import nested_dict

def ndict(data):
    """
    Create a defaultdict-like dictionary that allows accessing nested keys without getting
    KeyErrors or TypeErrors.

    Regular dict:
    {'a': 'a', 'b': None}['c'] => KeyError
    {'a': 'a', 'b': None}['b']['c'] => TypeError

    ndict:
    {'a': 'a', 'b': None}['c'] => {}
    {'a': 'a', 'b': None}['b']['c'] => {}

    :param data: dictionary data to convert
    :type data: dict
    :return:
    """
    data = remap(data, lambda p, k, v: v is not None)
    return nested_dict(data)