Serial port monitor

[federicomassimi]

hi, I would like to create a small software that can monitor data from ant to serial port.
In practice I have a hardware device that communicates with its software through the serial port, I would like to create a small tool to log (bidirectional) this communication.
I tried with pySerial, but if I try to open a serial port that is already in use by another software it gives me an error.
Can anyone help me?

Thanks in advance.

[buran]

Post your code in python tags.
You can handle the error using try/except block