Python Communication to UDOO Dual from Windows

Hi I'm having an issue communicating with the UDOO Dual from Windows. I am able to upload a sketch via the IDE on Windows using a port that shows up as 'COM3'. However, the below code triggers a port error (I've commented out the linux portion of the code).

Code:

import time
import serial
import threading

#port = serial.Serial('/dev/ttyS1', 115200)
port = serial.Serial('COM3', 115200)

 

So the issue, it turns out, was that the Arduino IDE must be closed in order to access the same serial connection (on a Windows system). The above code should work at opening a connection if you get pyserial installed correctly.