bindings and visualizer not enabled for ns3-3.33 on Linux CentOS

I’ve had some problems with ns3 on Mac and so now am trying with a CentOS system. I have installed all of the necessary packages, but when I try to configure, I get the following output:

PyViz visualizer : not enabled (Python Bindings are needed but not enabled)

Python Bindings : not enabled (Python library or headers missing)

I received help before and was told to specify where my modules are installed by specifying in the command line using:

-DPython3_LIBRARY_DIRS=

-DPython3_INCLUDE_DIRS=

-DPython3_EXECUTABLE=

but I get the same output. Any help on how to debug this?

Thanks,

Joe