是否可以向Flash发送POST请求？

I'm trying to make uploaded.net file uploader using python. I understand that uploading is just sending a POST request with the info needed, but in uploaded.net there's a flash file uploader:

<embed type="application/x-shockwave-flash" src="misc/uploader.swf" width="100%" 
    height="100%" style="undefined" id="yuigen1" name="yuigen1" bgcolor="#ffffff" 
quality="high" allowscriptaccess="always" wmode="transparent" menu="false" 
flashvars="allowedDomain=uploaded.net&amp;elementID=yuigen1&amp;
        eventHandler=YAHOO.widget.FlashAdapter.eventHandler">

The flash uploader is: misc/uploader.swf.
How can I make the uploader work without a form?