class_docstr: An implementation of BaseGUITestRunner using Tkinter.
      
class_docstr_tok: ["An","implementation","of","BaseGUITestRunner","using","Tkinter","."]
code: def notifyRunning(self):
      self.runCountVar.set(0)
      self.failCountVar.set(0)
      self.errorCountVar.set(0)
      self.remainingCountVar.set(self.totalTests)
      self.errorInfo = []
      while self.errorListbox.size():
          self.errorListbox.delete(0)
      # Stopping seems not to work, so simply disable the start button
      # self.stopGoButton.config(command=self.stopClicked, text="Stop")
      self.stopGoButton.config(state=tk.DISABLED)
      self.progressBar.setProgressFraction(0.0)
      self.top.update_idletasks()
  
imports: import sys
  import traceback
  import unittest
  import tkinter
  from tkinter import messagebox
  from tkinter import filedialog
  from tkinter import simpledialog
label_desc: Use image node_id 7 for calling the TkTestRunner obj's underlying member method code with example usage: obj.notifyRunning() without return types