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Hello,
is there any equivalent python code for <arg = value=> that is used in launch files?
Is there a way to know how roslaunch works internally?
I tried with sys.argv.append() but this doesn´t work when you load a yaml.file that also need this arguments.
Thanks in Advance for help.
If I understand you correctly, you're trying set/get a parameter to/from the parameter server using rospy (if this isn't correct then please update your question with more details about what you're doing, what you expect, and what your results are). Luckily, rospy has this built-in so it's straightforward.
To set a parameter use
rospy.set_param(param_name, param_value)
and to get a parameter use
param_value = rospy.get_param(param_name)
You can get more information from the tutorials on the wiki.
I want to do the same thing that a launch file does in a python script. <arg name="package" value="$(find rospackage)"/> <rosparam command="load" file="$(find rospackage)/example.yaml" subst_value="true"/> <nodename="something" pkg="package" type="package"> And in yaml file this arg will also be used like this packagedetails: packageinput: $(arg package)/config How can i implement this in a python script. If i try this with sys.argv.append() the yaml file will not find the arg but if i launch the launch file it will find the arg that is the problem.
Asked: 2020-06-04 04:43:34 -0500
Seen: 258 times
Last updated: Jun 04 '20
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