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Hi, I am installing ROS1 on Ubuntu 16.04. I have followed the steps up to Section 3. Create a ROS Workspace of the installation tutorial.

http://wiki.ros.org/ROS/Tutorials/InstallingandConfiguringROSEnvironment#Install_ROS

I have executed:

$ mkdir -p ~/catkin_ws/src

$ cd ~/catkin_ws/

$ catkin_make

If I stay with Python 2.7, do I still need to execute the following two commands after catkin_make?

$ source devel/setup.bash

$ echo $ROS_PACKAGE_PATH

Originally posted by new_to_ros on ROS Answers with karma: 17 on 2020-04-06

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Comment by new_to_ros on 2020-04-06:
Thank you.

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The command:

$ echo $ROS_PACKAGE_PATH

It is not needed, however, always when you're going to use a workspace you must source the setup.bash

"This command tells which packages are inside the workspace."

And it is not directly connected with your Python Version.

Originally posted by Teo Cardoso with karma: 378 on 2020-04-06

This answer was ACCEPTED on the original site

Post score: 1

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Comment by new_to_ros on 2020-04-06:
Thank you.

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