On Sun, Aug 22, 2010 at 11:19 PM, zpcspm <[email protected]> wrote:
>for p in c.all_positions():
> if p.headString() == 'sorted':
> children = list(p.children())
> headlines = [x.headString() for x in children]
> print headlines
> break
You need to copy positions if you save them in a list. If you don't,
they will move, eventually becoming 'None'. The following is
expected:
> AttributeError: 'NoneType' object has no attribute 'headString'
So this isn't a trivial script :-)
This works::
children = [z.copy() for z in p.children()]
Edward
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