[Tutor] Copying a list?

[Lloyd Kvam]

That looks OK to me.  Bob's suggestion of b = a[:] avoids importing
the copy module.  This is good, so long as you're comfortable using
slice notation to signify a copy.  Personally, I would not use list(a)
to get a copy simply because it looks more like a transformation (e.g.
turning a tuple into a list).

(I keep my pythontutor email folder sorted by thread.  When someone
simply repliese to another email - even if they change the subject,
the email gets added to the original thread.  I assume that this
would also apply to the mail-list archives.  It's better to start
a new thread with a new message.  Add tutor at python.org to your address
book if you have to.)

Zak Arntson wrote:

> import copy
> 
> class AppObject:
> 
> def handle(self, event):
>     event_children = copy.copy(self.children)
>     event_children.reverse()
> 
>     for child in event_children:
>         child.handle(event)
> 
>     self._handle(event)
> ###
> 
> Does that make sense?
> 
> ---
> Zak Arntson
> www.harlekin-maus.com - Games - Lots of 'em
> 

-- 
Lloyd Kvam
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