String Slicing Python
<p>I have a string, example:</p>

<pre><code>s = "this is a string, a"
</code></pre>

<p>where ','(comma) will always be the 3rd last character, aka s[-3].</p>

<p>I am thinking of ways to remove the ',' but can only think of converting the string into a list, deleting it, and converting it back to a string. This however seems a bit too much for simple task. </p>

<p>How can i accomplish this in a simpler way?</p>
