Removing circular references (was Re: Editors and books)

[Aahz Maruch]

In article <20000417184833.H15664 at xs4all.nl>,
Thomas Wouters  <thomas at xs4all.net> wrote:
>
>The problem with RC is that you can create circular references:
>
>a = [some large list]
>b = [some other large list]
>a.append(b)
>b.append(a)
>
>del a
>del b

Note that you can break the circular reference if you do this between
the append and the del:

del a[-1]
del b[-1]

Similar tricks work in most other cases where circular references get
created.
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