I am new in Panda3D and Python. I want to use steering wheel as input device. From manual, Panda3D supports mouse, keyboard, joystick and VR Helmets now. 
Will Panda3D provide it later?
If not, is it easy to extend if I use Python only? Or Do I need to extend from source code (c++) ?
Sophia
Does the steering wheel in question connect via a USB port?
Yes, I wil use USB steering wheel.
Check this code snippet 
https://discourse.panda3d.org/viewtopic.php?t=2305
It requires pygame library.
dunno if it really requires pygame. panda has tons of build-in stuff which is less known.
for example https://www.panda3d.org/apiref.php?page=AnalogNode might be of interest for you.
Thanks for your promptly reply!
I will have a look and try. Thanks