Dear Sir,
 
I succesfully configured mu pycraft for ESP 8266 and it is working fine with ESP 8266 at COM9 for one board and at at COM3 for another board. 
 
But I am not able to configure nypycraft for ESP32 it is fiving the following error. 
 
open serial error, please try again.
serial not open
could not open port ‘COM9’: PermissionError(13, ‘Access is denied.’, None, 5)

Hi.
That error means that the program is not able to open the serial port. Probaably because it is already being used by another program.
Make sure you close any other programs that may be using that board.
Regards,
Sara