Need a Python Pyserial Communication Example Program

Using excellent help from JohnnyK of this forum, I wrote an Mbed C++ program that uses UART USB to read & write full duplex exchanges of text strings between Nucleo 429 micro controller and a Windows laptop.

For tasks that perform heavy duty data processing, I need to write a simple command line multit-threaded Python program (that runs on Windows laptop Python Command prompt) using PySerial library, that communicates with above C++ program of Micro Controller Nucleo 429.

Is there a URL link to a such an example Python program source code file please?

Thanks and best regards,