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 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 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"