dict utils

dict_util.py

import json

def pprint(obj):
    print(json.dumps(obj, indent=2, sort_keys=True, default=str))

def nested_dict_recursive_with_single_key(nested_key, value):
    head, _sep, tail = nested_key.partition('.')
    return {head: (nested_dict_recursive_with_single_key(tail, value) if tail else value)}

def nested_dict_iterative_with_single_key(nested_key, value):
    data_dict = cur_dict = {}
    for key in nested_key.split('.'):
        prev_dict = cur_dict
        cur_dict = cur_dict.setdefault(key, {})
    prev_dict[key] = value  # pylint: disable=undefined-loop-variable
    return data_dict

def nested_dict(**nested_items):
    """Return a dictionary created from dot-separated arbitrarily nested keys and their values.
    Example:
    >>> nested_dict(**{'a': 1, 'b.c': 2, 'd.e.f': 3, 'd.e.g': 4})
    {'b': {'c': 2}, 'a': 1, 'd': {'e': {'f': 3, 'g': 4}}}
    """
    data_dict = cur_dict = {}
    for nested_key, val in nested_items.items():
        for key in nested_key.split('.'):
            prev_dict = cur_dict
            cur_dict = cur_dict.setdefault(key, {})
        prev_dict[key] = val
        cur_dict = data_dict
    return data_dict