title: Python 3.2.1: Converting Entry to Number
body: <p>I am, on my own, trying to create somewhat of a Python "The Price is Right". My problem is, I'm trying to convert the Entry to a number. See the code below:</p>
  
  <pre><code> ...
  
   Podium1Bid = Entry(Point(42.5, 35), 4)
  Podium2Bid = Entry(Point(122.5, 35), 4)
  Podium3Bid = Entry(Point(202.5, 35), 4)
  Podium4Bid = Entry(Point(282.5, 35), 4)
  
  Bid1 = int(Podium1Bid.getText())
  Bid2 = int(Podium2Bid.getText())
  Bid3 = int(Podium3Bid.getText())
  Bid4 = int(Podium4Bid.getText())
  
   ...
  </code></pre>
  
  <p>The lines Bid1 = int(Podium1Bid.getText()), etc. through Bid4... give me the error:</p>
  
  <pre><code> Traceback (most recent call last):
      File "&lt;pyshell#8&gt;", line 1, in &lt;module&gt;
         ContestantsRow()
      File "&lt;pyshell#7&gt;", line 31, in ContestantsRow
         Bid1 = int(Podium1Bid.getText())
   ValueError: invalid literal for int() with base 10: ''
  </code></pre>
  
  <p>I have also tried using eval() and similar things, and I still get errors.</p>