# mydict2.py

class Dict(dict):

    '''

    Simple dict but also support access as x.y style.

    >>> d1 = Dict()

    >>> d1['x'] = 100

    >>> d1.x

    100

    >>> d1.y = 200

    >>> d1['y']

    200

    >>> d2 = Dict(a=1, b=2, c='3')

    >>> d2.c

    '3'

    >>> d2['empty']

    Traceback (most recent call last):

        ...

    KeyError: 'empty'

    >>> d2.empty

    Traceback (most recent call last):

        ...

    AttributeError: 'Dict' object has no attribute 'empty'

    '''

    def __init__(self, **kw):

        super(Dict, self).__init__(**kw)

    def __getattr__(self, key):

        try:

            return self[key]

        except KeyError:

            raise AttributeError(r"'Dict' object has no attribute '%s'" % key)

    def __setattr__(self, key, value):

        self[key] = value

if __name__=='__main__':

    import doctest

    doctest.testmod()

>>>

**********************************************************************

File "C:\Users\SQD\Desktop\Git\Python\doctest\mydict2.py", line 12, in __main__.Dict

Failed example:

    d1['y']

Exception raised:

    Traceback (most recent call last):

      File "C:\Python34\lib\doctest.py", line 1324, in __run

        compileflags, 1), test.globs)

      File "<doctest __main__.Dict[4]>", line 1, in <module>

        d1['y']

    KeyError: 'y'

**********************************************************************

1 items had failures:

   1 of   9 in __main__.Dict

***Test Failed*** 1 failures.