Pyquery： I'm using pyquery ,the HTTP_REFFER is required in this page,How can i do with it?
<p>the website needs HTTP_REFFER when i send request..
the common way to open pages in PyQuery is `</p>

<pre><code>&gt; doc=pyQuery(url=r'http://www.....')
</code></pre>

<p>how can i add HTTP_REFFER ?</p>

<p>`</p>
