title: How to construct a PythonTuple from C#
body: <p>I want to construct an IronPython tuple from C#. These are PythonTuple's public constructors:</p>
  
  <pre><code>    public PythonTuple();
      public PythonTuple(object o);
  </code></pre>
  
  <p>How would I construct, for example, the tuple (1, 2, 3)?</p>