How to find all divs who's class starts with a string in BeautifulSoup? : <p>In BeautifulSoup, if I want to find all div's where whose class is span3, I'd just do:</p>

<pre><code>result = soup.findAll("div",{"class":"span3"})
</code></pre>

<p>However, in my case, I want to find all div's whose class starts with span3, therefore, BeautifulSoup should find:</p>

<pre><code>&lt;div id="span3 span49"&gt;
&lt;div id="span3 span39"&gt;
</code></pre>

<p>And so on...</p>

<p>How do I achieve what I want? I am familiar with regular expressions; however I do not know how to implement them to beautiful soup nor did I find any help by going through BeautifulSoup's documentation.</p>
