[ben@skylab:~]% python3                                                                                                                     [0]
Python 3.8.8 (default, Feb 19 2021, 16:53:21) [GCC] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import control
>>> control.__version__
'0.9.0'
>>> sys = control.drss(1,2,3)
>>> sys.dt
0
>>>