You get that message because "leo" is not an attribute or module of "c", ie:
This line is wrong:

 c.leo.setPri(20)

I just checked your link, and there is a mistake in your code, in the
original this is the line:

"c.cleo.setPri(20)"

Please replace that line, check it, and come back with the results :)

On Tue, Sep 23, 2014 at 11:33 AM, Huesing, Johannes <
[email protected]> wrote:

> I am trying to set a priority of a node and all its ancestors. After
> reading the documentation in http://leo.zwiki.org/Todo, I am still
> uncertain what the object is the method should be applied to.
>
> Here's my code
>
> def markUpwards(p):
>     for ancestor in p.self_and_parents():
>         g.es(ancestor.headString())
>         c.selectPosition(ancestor)
>         c.leo.setPri(20)
>
> (following the code suggested in
> http://osdir.com/ml/python-leo-general/2009-03/msg00532.html)
>
> But I get the message:
> AttributeError: 'Commands' object has no attribute 'leo'
>
> Sorry if my attempt to use the program causes me to flood this list with
> newbie questions.
> --
> Dr. rer. medic. Johannes Hüsing
> Leiter Biometrie
> Koordinierungszentrum für Klinische Studien
> Universitätsklinikum Heidelberg
> Besuchsadresse:
> Voßstraße 2/ Gebäude 4410
> 69115 Heidelberg
> Tel: +49-6221-56-34506
> Fax: +49-6221-56-33508
> E-mail: [email protected]
> http://www.kks-hd.de
>
>
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