update a currently displayed variable
<p>I am writing some Python code, which will in the end will display something which looks like:</p>

<pre><code>Volt1:  3.1V  
Volt2:  2.6V  
Volt3:  5.6V  
</code></pre>

<p>I am constantly monitoring some register values which will give me the current values of Volt1,Volt2,Volt3.  As I read in the new values I want to update the field next to the variable name (i.e 3.1V becomes 3.12V), but without just simply printing a new line, but updated the old value.</p>

<p>I am just not sure how to do it, can someone point me in the right direction?</p>

<p>Thanks</p>
