[Tutor] viewing attributes of objects in a class

[Don Arnold]

----- Original Message -----
From: "reavey" <reavey@nep.net>
To: <tutor@python.org>
Sent: Sunday, March 09, 2003 9:31 AM
Subject: [Tutor] viewing attributes of objects in a class


> Mike Reavey wrote:
>
>  >>> class = Object:
>              pass
>  >>>personA = Object()
>  >>> personA.name = "Ann"
>  >>>personA.age = 31
> is there a list of this object with its attributes which can be retrieved,
> like personA.inspect?
> TIA
> re-v

If you're just running interactively and want to see the object's
attributes, you can use the built in dir() function:

class MyClass:
    pass

personA = MyClass()
personA.name = "Ann"
personA.age = 31

print dir(personA)

>>> ['__doc__', '__module__', 'age', 'name']

Otherwise, you can access the object's __dict__, which is the dictionary
that stores its attributes:

for attrib in personA.__dict__.keys():
    print '%s = %s' % (attrib, personA.__dict__[attrib])

>>> age = 31
>>> name = Ann

HTH,
Don