Derived class and deepcopy

[Fredrik Lundh]

Philip Smith wrote:

> In the given example I want to apply deepcopy() to the Matrix instance (on initialisation) to 
> ensure that the list part is not affected by subsequent changes to the initialising list or Matrix 
> but this gives me a string of errors (some of which imply I'm trying to copy the class rather than 
> the instance).
>
> Anyone got any thoughts on this????

where's the example?  what errors do you get?

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