Execution error on library startup

Question

import sys
import tkinter

counter = 0

def update():
    global count, b
    counter += 1
    b.config(text = "click cont = " + str(count))
    print("updating")

root = tkinter.Tk()
b = tkinter.Button(root)
b.configure(background="yellow", text="click count = 0", command=update)
b.pack()
root.mainloop()

Traceback (most recent call last):
  File "C:/Users/miopo/untitled-1.py", line 12, in <module>
    root = tkinter.Tk()
  File "C:\Users\miopo\AppData\Local\Programs\Python\Python36-32\Lib\tkinter\__init__.py", line 2012, in __init__
    baseName = os.path.basename(sys.argv[0])
builtins.IndexError: list index out of range

Answer 1

I posted as an answer because I still can not comment on other people’s questions

Ever tried to use
from tkinter import *
root = Tk() ?

I made some adaptations to the code that made it run smoothly here for me:

The update method (here on my machine) could not access the variable counter, so I put her in a class along with the responsibility of increment.

import sys
import tkinter

class Contador():
    def __init__(self):
        self.valor = 0

    def incrementa(self):
        self.valor += 1

contador = Contador()

def update():
    global count, b
    contador.incrementa()
    count = str(contador.valor)
    b.config(text = "click cont = " + count)
    print("updating")

root = tkinter.Tk()
b = tkinter.Button(root)
b.configure(background="yellow", text="click count = 0", command=update)
b.pack()
root.mainloop()