Easy dot notation with a dictionary using a context manager

named.py

# -*- coding: utf-8 -*-
"""
Uses a context manager to provide a dictionary as a 'namespace' of sorts,
allowing you to use dot notation to work with the dictionary. Example:

d = {'a': 5, 'b': 10}
with named(d) as n:
  # prints 5
  print n.a
  # reassignment changes both n and d
  n.a = 'hello'
  # n still has all the nice dict features:
  for k, v in n.iteritems():
     print k, v

# prints {'a': 'hello', 'b': 10}
print d
"""
from contextlib import contextmanager

@contextmanager
def named(_dict):
    class named_dict(dict):
        def __init__(self, d):
            [setattr(self, k, v) for k, v in d.items()]
            super(named_dict, self).__init__(_dict)
        def __setattr__(self, name, value):
            _dict[name] = value
            super(named_dict, self).__setattr__(name, value)
    yield named_dict(_dict)