Display objects attributes in tkinter label - python-3.x

Question

I would like a label that updates when I push a button. The label is a formated string that prints some attributes of an object.
This is what I tried. It displays properly but won't update.
from class_mnoply import *
from tkinter import *
Player1=Player("Hat")
message=str('''
____________________
{0}
Bank account: ${1}
Dice1: {2}
Dice2: {3}
____________________
'''.format(Player1.name, Player1.bank, Player1.dice1, Player1.dice2))
mainWin = Tk()
topFrame=Frame(mainWin)
topFrame.pack(side=TOP)
button1 Button(mainWin,text="ThrowDice",fg="red",command=Player1.rollDice())
button1.pack(side=BOTTOM)
plLabel = Label(mainWin, textvariable=message)
plLabel.pack()
mainWin.mainloop()

Answer 1

You have 1 typo in the following statement and 1 potential error:
button1 Button(mainWin,text="ThrowDice",fg="red",command=Player1.rollDice())
Can you guess what is the typo? If no, you are just missing the = sign.
On the other hand, you are assigning the return value of Player1.rollDice() to command, but this is not what you want. What you want is just set the Player1.rollDice method as the command that is called when button1 is pressed. Here's the correct syntax (note the absence at the end of ()):
button1 = Button(mainWin,text="ThrowDice",fg="red",command=Player1.rollDice)
Then, where is message defined in the following statement:
plLabel = Label(mainWin, textvariable=message)
There's no need to use a StringVar object, but if you want, you have first to declare it:
message = StringVar()
and finally you can use it as textvariable for your label.
Assuming you don't know what lambda is, this is a working example of what you are trying to do (without using a StringVar variable):
from tkinter import *
def set_label_text():
plLabel.config(text='Hello World!')
mainWin = Tk()
topFrame=Frame(mainWin)
topFrame.pack(side=TOP)
button1 =Button(mainWin,text="ThrowDice",fg="red",
command=set_label_text) # note the absence of ()
button1.pack(side=BOTTOM)
plLabel = Label(mainWin)
plLabel.pack()
mainWin.mainloop()