The rospkg module provides basic utilities for querying information about ROS packages and stacks. There are several basic APIs: ROS environment, RosPack/RosStack, and OS detection. The environment APIs enable access to environment settings that defines the ROS package/stack filesystem configuration. The RosPack and RosStack APIs are similar to the rospack and rosstack command-line tools and provide information about dependency, location, and other package/stack metadata. The Manifest class provides access to a specific package/stack’s manifest information.
Example:
import rospkg
ros_root = rospkg.get_ros_root()
r = rospkg.RosPack()
depends = r.get_depends('roscpp')
path = r.get_path('rospy')
Requested resource (e.g. package/stack) could not be found.
rospkg is available on pypi and can be installed via pip
pip install rospkg
or easy_install:
easy_install rospkg
The rospkg module is meant to be used as a normal Python module. After it has been installed, you can import it normally and do not need to declare as a ROS package dependency.