python: comparing values string/integer
<p>i will be comparing two values like this:\</p>

<pre><code>value1&gt;value2
</code></pre>

<p>i know that value2 is always an integer, but sometimes value1 is None or a string, how do force the comparison ONLY if value1 is numerical?</p>

<p><strong>value1 is a decimal</strong></p>
