Bug?

[Erik Max Francis]

Ricardo Correia wrote:

> ---------------------------------------------------
> mainlist = [1, 2, 3, 4, 5]
> copy = mainlist
> 
> for item in copy:
>  print item,
>  mainlist.remove(item)
> ---------------------------------------------------
> 
> Shouldn't this produce '1 2 3 4 5'?
> 
> I only get '1 3 5' and unfortunately because of this my program
> doesn't work.

The problem is that the variable named copy isn't a copy, it's a
reference.  Try instead:

	copy = mainlist[:] # now copy is truly a copy

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