Django :: Flash - Iterate Over Chunks() With Request.POST?

I'm trying to optimize a site I'm building with Django/Flash and am having a problem using Django's iterate over chunks() feature. I'm sending an image from Flash to Django using request.POST data rather than through a form (using request.FILES). The problem I foresee is that if there is large user volume, I could potentially kill memory. But it seems that Django only allows iterating over chunks with request.FILES. Is there a way to:

1) wrap my request.POST data into a request.FILES (thus spoofing Django)

or

2) use chunks() with request.POST data