title: Creating StringVar() class variables
body: <p>I'm building a GUI using Tkinter and I've to create class <code>StringVar</code> atributes depending on a variable called <code>initial_numbers</code>. If <code>initial_numbers</code> is 5, I've to create 5 <code>StringVars()</code> with the name <code>self.string_var</code> plus a number so I can identify them.</p>
  
  <p>If:</p>
  
  <pre><code>self.initial_numbers = 5
  </code></pre>
  
  <p>I've to create</p>
  
  <pre><code>self.string_var0 = StringVar()
  self.string_var1 = StringVar()
  self.string_var2 = StringVar()
  self.string_var3 = StringVar()
  self.string_var4 = StringVar()
  </code></pre>
  
  <p>After creating them, I want to add them to a list called <code>stringList</code></p>
  
  <p>What I've tryed this, but of course it's not working.</p>
  
  <pre><code>self.initial_numbers = 5
  stringList = []
  for i in xrange(int(self.initial_numbers)):
      self.string_var+str(i) = StringVar()
      self.string_var+str(i).set("test")
      stringList.append(self.date_string+str(i))
  </code></pre>
  
  <p>Thanks in advance.</p>