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Date: Tue, 6 Dec 2011 03:06:04 -0800 (PST)
From: Yingjie Lan <lanyjie@yahoo.com>
Subject: the deceptive continuous assignments
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Xref: x330-a1.tempe.blueboxinc.net comp.lang.python:16717

Hi, I just figured out this with Python3.2 IDLE:=0A=0A>>> class k: pass=0A>=
>> x=3Dk()=0A>>> x.thing =3D 1=0A>>> x.thing=0A1=0A>>> x =3D x.thing =3D 1=
=0ATraceback (most recent call last):=0A=A0 File "<pyshell#7>", line 1, in =
<module>=0A=A0 =A0 x =3D x.thing =3D 1=0AAttributeError: 'int' object has n=
o attribute 'thing'=0A>>> x=0A1=0A>>>=0A=0A=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=0Awhen I do x=3Dx.thing=3D1, I thought it would=0Abe lik=
e in C, 1 is first assigned to x.thing,=0Athen it is further assigned to x.=
=0A=0ABut what seems to be going on here is=0Athat 1 is first assigned to x=
, then=0Ato x.thing (which causes an error).=0A=0AAny reason why would Pyth=
on deviate=0Afrom C in this regard?=0A=0AThanks!=0A=0AYingjie