Python error on mentioned Arduino port name

[deanhystad]

It resolved the problem. Now you just have a different problem.

If your IDE is using the serial port how can your python program use the same serial port? Do you have another serial port? If not, close the IDE and try running your program.

Was just looking at this page:

https://www.learnrobotics.org/blog/commu...munication.

Under "Testing the Build"

Now before running the program, close the Arduino IDE. We need the COM port to be available for serial communication, so both programs can’t be running simultaneously.

In the future you might get a better/quicker response on an Arduino forum.