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2012-11-30 02:48:24 -0500	received badge	● Popular Question (source)
2012-11-30 02:48:24 -0500	received badge	● Notable Question (source)
2012-11-30 02:48:24 -0500	received badge	● Famous Question (source)
2011-11-18 05:47:17 -0500	marked best answer	cannot run ros commands Are you sure that your ROS binaries actually use Python 2.6? The Syntax Error exception indicates otherwise. Do you have Python 3.x installed? - Röhling (Oct 10) I think it's due to a Python 2.6 -3 conflict. Röhling maybe you should post your comment as an answer. - Lorenzo Riano (Oct 10) I just installed Python3.2 (Ubuntu 11.04), ran some ROS stuff with it, and I got an AttributeError exception. So while I agree with Lorenzo that this looks like some sort of Python version conflict, I am unable to reproduce the same error. - Röhling (Oct 10)
2011-10-09 16:12:03 -0500	commented question	cannot run ros commands i'm using Ubunthu 10.10 and ros electric package. not only ros core..all the roscommands like rosdep, roswtf also giving me the same error.it was working fine last time. i didnt even update the versions. but since it's not working i tried updating the ubunthu, python version and ros package. but i still hav the same problem.
2011-10-08 22:31:39 -0500	asked a question	cannot run ros commands Hi! whenever i try to run ros commands such as roscore or rosmake, it keeps popping up >> File "/opt/ros/electric/ros/bin/roscore", line 34, in <module> from ros import roslaunch File "/opt/ros/electric/ros/core/roslib/src/ros/__init__.py", line 55 except roslib.packages.InvalidROSPkgException as e: ^ SyntaxError: invalid syntax I would b glad if any of you can solve this problem.my default python version is 2.6.6. thanks in advance!