title: Make Entry Widget Active
body: <p>I am trying to change my window so that the Entry Widget is "active": without clicking in the widget, you can type and it goes directly into the box (same as IDLE's <kbd>Alt</kbd> + <kbd>M</kbd> window --- when the window opens, without having to click into the Entrybox, you can type into it).</p>
  
  <p>I tried using <code>entry.icursor()</code>:</p>
  
  <pre><code>from Tkinter import *
  class GetFileName:
      def __init__(self, master):
          self.frame = Frame(master)
          self.entryFrame = Frame(self.frame)
          self.fEntry = Entry(self.entryFrame, width = 50, justify = CENTER)
          self.fEntry.icursor(0) # thought this would make it "active"
          # a bunch of other widgets
          self.fEntry.grid(row = 1, column = 2, padx = 5, pady = 5)
          self.entryFrame.grid(row = 1)
          self.frame.grid()
  
  root = Tk(className = ' Module Opener')
  app = GetFileName(root)
  root.rowconfigure(0, weight = 1)
  root.columnconfigure(0, weight = 1)
  root.mainloop()
  </code></pre>
  
  <p>How can I fix this so that it is the active window? Thanks!</p>