Chek this out, might help you:

http://py-yaml.darwinports.com/

:)
Keep Creating,

Pablo




On 29 August 2010 15:45, Billy Okal <b.okal@jacobs-university.de> wrote:

> Dear all,
>
> I am experiencing the following problem with Cturtle installation on Snow
> leopard. I have followed the standard osx guide on the wiki and installed
> py25-yaml correctly, but still I get this,
>
> rosinstall ~/ros http://ros.org/rosinstalls/cturtle_pr2all.rosinstall
> Traceback (most recent call last):
>   File "/usr/local/bin/rosinstall", line 5, in <module>
>     pkg_resources.run_script('rosinstall==0.5.6', 'rosinstall')
>   File
> "/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/pkg_resources.py",
> line 442, in run_script
>     self.require(requires)[0].run_script(script_name, ns)
>   File
> "/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/pkg_resources.py",
> line 1167, in run_script
>     exec script_code in namespace, namespace
>   File
> "/Library/Python/2.6/site-packages/rosinstall-0.5.6-py2.6.egg/EGG-INFO/scripts/rosinstall",
> line 23, in <module>
>
> ImportError: No module named yaml
>
> Has anybody seen this, what what could be the remedy for it?
>
>
> Billy Okal.
> "sure vi is user friendly, its just particular about who to be friends
> with"
>
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>