Python 3 and tkinter open a new window by clicking a button

Question

How to open a new window when a user clicks a button in Tkinter and Python 3?

Answer 1

You can open a new window by creating a new instance of the Tkinter Toplevel class.

For instance:

import Tkinter as tk class View(tk.Frame): count = 0 def __init__(self, *args, **kwargs): tk.Frame.__init__(self, *args, **kwargs) b = tk.Button(self, text="Open new window", command=self.new_window) b.pack(side="top") def new_window(self): self.count += 1 id = "New window #%s" % self.count window = tk.Toplevel(self) label = tk.Label(window, text=id) label.pack(side="top", fill="both", padx=10, pady=10) if __name__ == "__main__": root = tk.Tk() view = View(root) view.pack(side="top", fill="both", expand=True) root.mainloop()