I'm working with LabelledRootedTree but my problem is that I need to
create first all the nodes and then an algorithm creates connection
parent-child. It is something like that:

for v in g.vertices():
    nodes[v] = LabelledRootedTree([], v;label) # labelled tree node
with no child

for ... :


2012/9/3 Nicolas M. Thiery <[email protected]>:
> On Mon, Sep 03, 2012 at 06:57:44PM +0200, Viviane Pons wrote:
>> I'm trying to work with trees but I find them quite difficult to use.
>> I have a simple question : how can I crate a temporary mutable
>> labelled rooted tree and set it to be immutable after the construction
>> is finished ?
>>
>> I have found no way of doing this and this would be necessary for what
>> I'm doing now. If someone know how it works, it would be great.
>
> Just a suggestion: could you post a sample piece of code that you
> would want to write?
>
> Cheers,
>                                 Nicolas
> --
> Nicolas M. Thiéry "Isil" <[email protected]>
> http://Nicolas.Thiery.name/
>
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