wesley chun wrote:
>> 3)is there a special method for `is'.
> 
> no, not really. you can use id() and '==' to proxy for is:
> 
> a is b <==> id(a) == id(b)

No, not necessarily. id's are recycled which can lead to unexpected 
behaviour when comparing them. See for example this thread on c.l.py:
http://tinyurl.com/yflknx

Kent

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