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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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Hi, I just figured out this with Python3.2 IDLE: >>> class k: pass >>> x=k() >>> x.thing = 1 >>> x.thing 1 >>> x = x.thing = 1 Traceback (most recent call last): File "<pyshell#7>", line 1, in <module> x = x.thing = 1 AttributeError: 'int' object has no attribute 'thing' >>> x 1 >>> ================ when I do x=x.thing=1, I thought it would be like in C, 1 is first assigned to x.thing, then it is further assigned to x. But what seems to be going on here is that 1 is first assigned to x, then to x.thing (which causes an error). Any reason why would Python deviate from C in this regard? Thanks! Yingjie
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the deceptive continuous assignments Yingjie Lan <lanyjie@yahoo.com> - 2011-12-06 03:06 -0800
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