invoke javascript function when scraping the web page
<p>I am scraping a web page using python, the page has:  </p>

<pre><code>&lt;input name="Submit" type="button" class="btn" value="query"  onclick = "dataQuery();" /&gt; 
</code></pre>

<p>I want to trigger the onclick event in python, how can I do that, thanks</p>
