title: How can I get the value of a <property object at 0x...> in Python
body: <p>I am new to Python and using Python 2.7 on Windows I am using Astropy library, but when I want to view an attribute on the following class:</p>
  
  <pre><code>&gt;&gt;&gt; astropy.cosmology.FlatLambdaCDM.Ok0
  </code></pre>
  
  <p>it returns:</p>
  
  <pre><code>&lt;property object at 0x7fa2c7e206d8&gt;
  </code></pre>
  
  <p>Same for other attributes on that object.  How do I access the numerical values?</p>