class object's attribute is also the instance's attribute?

Newsgroups	comp.lang.python
Date	2012-08-30 03:55 -0700
Message-ID	<3830e549-cb6d-4bcf-af45-f7c83ad2b65e@googlegroups.com> (permalink)
Subject	class object's attribute is also the instance's attribute?
From	陈伟 <chenwei.address@gmail.com>

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when i write code like this:

class A(object):
     
    d = 'it is a doc.'
    

t = A()

print t.__class__.d
print t.d

the output is same.

so it means class object's attribute is also the instance's attribute. is it right? i can not understand it.

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class object's attribute is also the instance's attribute? 陈伟 <chenwei.address@gmail.com> - 2012-08-30 03:55 -0700
  Re: class object's attribute is also the instance's attribute? Dave Angel <d@davea.name> - 2012-08-30 07:53 -0400
    Re: class object's attribute is also the instance's attribute? 陈伟 <chenwei.address@gmail.com> - 2012-08-30 05:57 -0700
    Re: class object's attribute is also the instance's attribute? 陈伟 <chenwei.address@gmail.com> - 2012-08-30 05:57 -0700
  Re: class object's attribute is also the instance's attribute? Ulrich Eckhardt <ulrich.eckhardt@dominolaser.com> - 2012-08-30 13:22 +0200
  Re: class object's attribute is also the instance's attribute? Marco Nawijn <nawijn@gmail.com> - 2012-08-30 05:34 -0700
    Re: class object's attribute is also the instance's attribute? Oscar Benjamin <oscar.j.benjamin@gmail.com> - 2012-08-30 13:52 +0100
    Re: class object's attribute is also the instance's attribute? Hans Mulder <hansmu@xs4all.nl> - 2012-08-30 15:25 +0200
      Re: class object's attribute is also the instance's attribute? Marco Nawijn <nawijn@gmail.com> - 2012-08-30 07:11 -0700
        Re: class object's attribute is also the instance's attribute? Dave Angel <d@davea.name> - 2012-08-30 10:30 -0400
          Re: class object's attribute is also the instance's attribute? Marco Nawijn <nawijn@gmail.com> - 2012-08-30 07:48 -0700
            Re: class object's attribute is also the instance's attribute? Dave Angel <d@davea.name> - 2012-08-30 11:18 -0400
          Re: class object's attribute is also the instance's attribute? Marco Nawijn <nawijn@gmail.com> - 2012-08-30 07:48 -0700
            Re: class object's attribute is also the instance's attribute? Hans Mulder <hansmu@xs4all.nl> - 2012-08-30 17:20 +0200
              Re: class object's attribute is also the instance's attribute? Ben Finney <ben+python@benfinney.id.au> - 2012-08-31 09:58 +1000

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