Python Variable in tkinter window - python-3.x

Question

I am building a device that counts how many parts are made off a machine and then turns the machine off at a specific number. I am using an Arduino for all the I/O work and then importing the serial data into Python as variable partCount. I would like to create a simple GUI in tkinter to show the number of parts that have been made and the total number needed. The problem is that I keep getting an error on the label lines that include a variable instead of just a text. I've done a lot of research on it, but I just can't get it for some reason. Any advice would be appreciated.
import serial
import csv
import datetime
import tkinter
#Part Variables
partNumber = "A-33693" #Part Number
stockupTotal = 10
arduinoSerialData = serial.Serial('com3',9600) #Serial Variable
now = datetime.datetime.now()
#GUI
window = tkinter.Tk()
window.title("Troy Screw Products")
titleLabel = tkinter.Label(window, text="Davenport Machine Control")
partNumberLabel = tkinter.Label(window, text="Part #:")
stockUpTotalLabel = tkinter.Label(window, text="Stockup Total:")
partCountLabel = tkinter.Label(window, text="Current Part Count:")
partNumberInfo = tkinter.Label(window, partNumber)
stockUpTotalInfo = tkinter.Label(window, stockupTotal)
partCountInfo = tkinter.Label(window, partCount)
titleLabel.pack()
partNumberLabel.pack()
partNumberInfo.pack()
stockUpTotalLabel.pack()
stockUpTotalInfo.pack()
partCountLabel.pack()
partCountInfo.pack()
window.mainloop()
#Write to CSV File
def writeCsv():
with open("machineRunData.csv", "a") as machineData:
machineDataWriter = csv.writer(machineData)
machineDataWriter.writerow([partNumber, "Stockup Complete",now.strftime("%Y-%m-%d %H:%M")])
machineData.close()
#Serial Import
while (1==1):
if (arduinoSerialData.inWaiting()>0):
partCount = arduinoSerialData.readline()
partCount = int(partCount)
if partCount == 999999:
writeCsv()
print(partCount)

Answer 1

There are several options you can give to a Label widget, as you can see here. You should specify all parameters after the first by name:
partNumberInfo = tkinter.Label(window, text=PartNumber)
To use Python variables in Tkinter you need to special Tk objects, of which there are four: BooleanVar, DoubleVar, IntVar, and StringVar. See this answer for a good example.

Answer 2

So after a ton of research over the last week, I found a solution. The problem was that the program would run the GUI, but not run the code for the serial import until the GUI window was closed. I needed a way to get both the GUI running and updated and get the serial data importing at the same time. I resolved this by creating a thread for both operations. There's probably an easier way to do this, but this what I came up with. The code is below for anyone having a similar problem.
import serial
import time
import threading
from tkinter import *
#Part Variables
partNumber = "A-33693" #Part Number
stockupTotal = 10
partCount = 0
def countingModule():
global partCount
while (1==1):
time.sleep(2)
partCount += 1
print(partCount)
def gui():
global partCount
root = Tk()
pc = IntVar()
pc.set(partCount)
titleLabel = Label(root, text="Machine Control")
partNumberLabel = Label(root, text="Part #:")
stockUpTotalLabel = Label(root, text="Stockup Total:")
partCountLabel = Label(root, text="Current Part Count:")
partNumberInfo = Label(root, text=partNumber)
stockUpTotalInfo = Label(root, text=stockupTotal)
partCountInfo = Label(root, textvariable=pc)
titleLabel.pack()
partNumberLabel.pack()
partNumberInfo.pack()
stockUpTotalLabel.pack()
stockUpTotalInfo.pack()
partCountLabel.pack()
partCountInfo.pack()
def updateCount():
pc.set(partCount)
root.after(1, updateCount)
root.after(1, updateCount)
root.mainloop()
op1 = threading.Thread(target = countingModule)
op2 = threading.Thread(target = gui)
op1.start()
op2.start()