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Date: Fri, 22 May 2015 15:55:16 -0500
From: Tim Chase <python.list@tim.thechases.com>
To: python-list@python.org
Subject: Re: Ah Python, you have spoiled me for all other languages
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Xref: csiph.com comp.lang.python:91074

On 2015-05-22 23:34, Marko Rauhamaa wrote:
> >>> object().x = 3
> Traceback (most recent call last):
> File "<stdin>", line 1, in <module>
> AttributeError: 'object' object has no attribute 'x'
> 
> Why are object instances immutable in Python?

I've wondered this on multiple occasions, as I've wanted to just make
an attribute bag and have to do something like

  class AttrBag(object): pass
  ab = AttrBag()
  ab.x = 42
  ab.y = "some other value"

because just doing

  ab = object()

raises the AttributeError Marko highlights. :-/

-tkc