Hi all, I am stuck at and getting error message below. I'm assuming this is resulting in pythonpath setting but I'm not sure since I'm new to it yet. I appreciate if anyone gives me an idea. - Phenomenon % ~/rosinstall ~/ros http://ros.org/rosinstalls/boxturtle_base.rosinstall Traceback (most recent call last): File "/home/robot/rosinstall", line 25, in import yaml # 10Jun15/Isao; rosnstall still stuck here ImportError: No module named yaml - Environement Redhat Linux version 2.6.29.4 gcc version 4.4.1 20090725 (Red Hat 4.4.1-2) (GCC) Type of ROS: I'm referring to "Fedora 11 Installation Instructions" (http://www.ros.org/wiki/ROS/Installation/Fedora) # Using Redhat 2.6 is required the robot - Workaround tried (all of these didn't have effect) W-1. Copy /usr/lib/python2.6/site-packages/yaml/cyaml.py* to %HOME_PYTHON%/ . Modify rosinstall to "import cyaml" W-2. Copy /usr/share/doc/PyYAML-3.08/examples/pygments-lexer/yaml.py to %HOME_PYTHON%/ - Result of "locate yaml" https://docs.google.com/View?id=dfcq779r_271f5bt6gff Best regards, Isaac