Python dict, dot notation support

better_dict.py

class Map(dict):
    """
    Example:
    m = Map({'first_name': 'Eduardo'}, last_name='Pool', age=24, sports=['Soccer'])
    """
    def __init__(self, *args, **kwargs):
        self.update(*args,**kwargs)

        if kwargs:
            for k, v in kwargs.items():
                self[k] = v

    def __getattr__(self, attr):
        return self.get(attr)

    def __setattr__(self, key, value):
        self.__setitem__(key, value)

    def __setitem__(self, key, value):
        super(Map, self).__setitem__(key, value)
        self.__dict__.update({key: value})
        
    def __missing__(self,key):
        value=self[key]= type(self)()
        return value

    def __delattr__(self, item):
        self.__delitem__(item)

    def __delitem__(self, key):
        super(Map, self).__delitem__(key)
        del self.__dict__[key]

m = Map({'first_name': 'Eduardo'}, last_name='Pool', age=24, sports=['Soccer'])

# Add new key
m.new_key = 'Hello world!'
# Or
m['new_key'] = 'Hello world!'
print(m.new_key)

# Missing key returns empty dict
print(m['abc'])

# Update values
m.new_key = 'Yay!'
# Or
m['new_key'] = 'Yay!'

# Delete key
del m.new_key # Or del m['new_key']

credits.md

Based on the StackOverflow answer

Try it out