D&D Die Roller - My most recent finished project

I wrote a die rolling program in Python 3's tkinter library, mainly intended for D&D and other D20 systems.

Here is the code:

from tkinter import *

class RollTheDice:
   def __init__(self, parent):
       self.dieParent = parent
       self.dieContainer = Frame(parent).pack()

       self.dieLabel = Label(self.dieContainer, text="Number of Dice you will be rolling:")
       self.dieLabel.pack(side=TOP)

       self.dieEntry = Entry(self.dieContainer)
       self.dieEntry.pack(side=TOP)

       self.sideLabel = Label(self.dieContainer, text="Number of Sides per Die:")
       self.sideLabel.pack(side=TOP)

       self.sideEntry = Entry(self.dieContainer)
       self.sideEntry.pack(side=TOP)

       self.modLabel = Label(self.dieContainer, text="Number you will be adding to the roll (modifier):")
       self.modLabel.pack(side=TOP)

       self.modEntry = Entry(self.dieContainer)
       self.modEntry.pack(side=TOP)

       global rolldisp
       rolldisp = StringVar()
       self.rollResult = Label(self.dieContainer, textvariable=rolldisp)
       self.rollResult.pack(side=TOP)

       self.diceButton = Button(self.dieContainer)
       self.diceButton.configure(text="Roll the Dice!", background="green")
       self.diceButton.pack(side=LEFT)
       self.diceButton.bind("<Button-1>", self.diceButtonClick)
       self.diceButton.bind("<Return>", self.diceButtonClick)

       self.quitButton = Button(self.dieContainer)
       self.quitButton.configure(text="Quit", background="red")
       self.quitButton.pack(side=RIGHT)
       self.quitButton.bind("<Button-1>", self.quitButtonClick)
       self.quitButton.bind("<Return>", self.quitButtonClick)

   def diceButtonClick(self, event):
       die = int(self.dieEntry.get())
       side = int(self.sideEntry.get())
       mod = int(self.modEntry.get())
       DieRoll(die, side, mod)

   def quitButtonClick(self, event):
       self.dieParent.destroy()

def DieRoll(dice, sides, mods):
   import random
   rollnumber = 1
   runningtotal = 0
   endresult = ""
   while rollnumber <= dice:
       roll = random.randint(1, sides)
       endresult += "Roll #"
       endresult += str(rollnumber)
       endresult += ": "
       endresult += str(roll)
       endresult += "\n"
       runningtotal += roll
       rollnumber += 1
   total = runningtotal + mods
   finalresult = "Your Roll:\n"
   finalresult += endresult
   finalresult += "Total:"
   finalresult += str(total)
   rolldisp.set(finalresult)

root = Tk()
root.title("GUI Die Roller by MoosePasteInventor")
myapp = RollTheDice(root)
root.mainloop()

I'd love some feedback, so what do you think about my first real programming project?