title: Tkinter grid() with negative padding
body: <p>Is there a way to add negative padding when placing a Tkinter widget in a grid ?
  Things such as <code>myWidget.grid(padx=-10)</code> do not work.</p>
  
  <p>I am trying to display a Radiobutton and a Label side-by-side, my problem is the gap between the radio's text and the label's text is too wide, hence my question on adding a negative padding to the label.<br>
  Code:</p>
  
  <pre><code>rb = Radiobutton(text="foo") 
  rb.grid(row=row, column=0, sticky=W) 
  l = Label(text="bar") 
  l.grid(column=1, sticky=W)
  </code></pre>
  
  <p>Thanks !</p>