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Loading a file from a python ros node

rospy

asked 2011-06-17 09:59:02 -0500

andrew-unit
283 ●11 ●14 ●21

Hello, I'm writing a python node and I need to load an XML file. I want to try to keep the XML file in my package so that way it travels with the ROS package. However, since I typically launch nodes from my home directory, and the node is in my ROS development area, it seems I have to specify a full path in order to load the XML file. Is there a way to ask python to give me the relative path to the current package?

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answered 2011-06-17 10:23:32 -0500

flag of United States of America

4119 ●27 ●62 ●83 http://www.cs.duke.edu/~mac

updated 2011-06-17 10:54:11 -0500

flag of United States of America

58457 ●128 ●550 ●526 http://www.ros.org/

The Best Way To Do This (tm) is probably to use a rosparam to set the path to the file, and then load it that way.

If you really just want the path to the file, a proper call to roslib.rospack modulefind the directory for you.

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answered 2011-06-17 10:51:40 -0500

Straszheim
426 ●3 ●8

you also could use roslaunch and the $(find) mechanism:

http://www.ros.org/wiki/roslaunch/XML

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Asked: 2011-06-17 09:59:02 -0500

Seen: 1,905 times

Last updated: Jun 17 '11

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