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Showing content from https://mail.python.org/pipermail/python-dev/2003-April/035215.html below:

[Python-Dev] 2.3b1, and object()

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Mathieu Fenniak <laotzu@pobox.com>:

> >>> class A(object): pass
> >>> a = A()
> >>> a.i = 5
> >>> a.i
> 5
> >>>
>
> >>> a = object()
> >>> a.i = 5
> Traceback (most recent call last):
>    File "<stdin>", line 1, in ?
> AttributeError: 'object' object has no attribute 'i'

I think this is because object is a built-in type, and
as such doesn't allow attributes to be added, unless you
create a Python subclass of it.

Greg Ewing, Computer Science Dept, +--------------------------------------+
University of Canterbury,	   | A citizen of NewZealandCorp, a	  |
Christchurch, New Zealand	   | wholly-owned subsidiary of USA Inc.  |
greg@cosc.canterbury.ac.nz	   +--------------------------------------+

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