title: opening a main window in python
body: <p>I have the following code. It should open a window of some sort, but nothing happens when i run it or press enter or whatever. what am i doing wrong or what did i forgot?</p>
  
  <pre><code>import sys
  import tkinter
  def main():
  root= tkinter.Tk()
  root.title('Reminder')
  root.resizable(width=False, height=False)
    tkinter.mainloop()
    if __name__ == '_ _main_ _': 
     main()
   tkinter.mainloop()
  </code></pre>