in tk.Button(self.frame, text = text, command= lambda:self.new_window(number, _class)).grid(padx= 5, pady= 5, sticky= N + E + W + S) File "C:\Users\CSB\Desktop\python program\triple_window.py", line 50, in new_window
ParserWarning: Falling back to the 'python' engine because the 'c' engine does not support regex separators (separators > 1 char and different from '\s+' are interpreted as regex); you can avoid this warning by specifying engine='python'.
