Arduino IDE display DEBUG PORT Serial1 output

How can I display / capture Arduino IDE's Serial1 output? Can I display it using Arduino IDE or using a script in Python?

This python script (courtesy of Chad G) works for the Serial:

#!/usr/bin/env python3


import serial 
import sys

if len(sys.argv)<2:
    print("Please give serial port number")
    exit()
port=sys.argv[1]
ser= serial.Serial('/dev/ttyUSB'+port,9600,timeout=5)

while True:
    try:
    stringMe = str(ser.readline().strip())
    if len(stringMe)>3:
        print(stringMe)

    except:
    print(sys.exc_info())
    ser.close()
    exit()

called as (for USB0):

python3 Arduino/tools/multiMonitor/monitorUsb1.py 0

or, if I want to save to a log file:

python3 Arduino/tools/multiMonitor/monitorUsb1.py 0 >> Arduino/tools/multiMonitor/log/usb00.txt