Python3 roscpp_init: dynamic module does not define module export function

[a-z-e-r-i-l-a]

Is your feature request related to a problem? Please describe.
I would like to invoke roscpp_init('node_name', []) that is mentioned here in Python3.

If I do so however I get the following error:

    from moveit_ros_planning_interface._moveit_roscpp_initializer import roscpp_init
ImportError: dynamic module does not define module export function (PyInit__moveit_roscpp_initializer)

I thought if I build moveit from source in my workspace with cmake arguments corresponding python3 it may fix the problem, but even without these arguments haven't been able to build the planning_interface package without error.

I would be glad if you could kindly help me about this issue.

[welcome]

Thanks for reporting an issue. Because we're a volunteer community, providing a pull request with suggested changes is always welcomed.

[IndustrialEngStudent]

I have the same error when trying to import moveit_commander in the python based move group interface. Did you solve your issue?

[a-z-e-r-i-l-a]

@IndustrialEngStudent not through moveit. but in the end I made a package that would initialize the node handle similar to how it's done in moveit_ros_planning_interface._moveit_roscpp_initializer import roscpp_init , and then built this package with python3 cmake args.

[rhaschke]

Building and using MoveIt's python API with Python3 works as far as I know. Of course, you need to build your whole ROS environment with Python3 support - as done in Noetic.