def loadfile(request):                                            
    return HttpResponse(request.raw_post_data) 

class CabinetAddScan(JsonFormResponseMixIn, BaseUpdateView):
    model = Document
    form_class = ScanForm
    
class JsonFormResponseMixIn(object):
    @to_json
    def form_valid(self, form):
        self.object = form.save()
        return dict(
            success = True,
            object = self.object.__json__(),
        ) 
    
    @to_json
    def form_invalid(self, form):
        return dict(
            success = False,
            errors = [ (field.label, u", ".join(field.errors)) for field in form if field.errors],
        )
     
def to_json(func):
    def wrapper(self, *argv, **kw):
        data = json.dumps(func(self, *argv, **kw))
        return HttpResponse(data, mimetype="application/json")
    return wrapper

Key \'mypic\' not found in <MultiValueDict: {u"\'mypic\'": [<TemporaryUploadedFile: \'test.jpg\' (application/octet-stream)>]}>'

upload = request.FILES['test']
fd = open('%s/%s' % (settings.MEDIA_ROOT,upload.name), 'wb')
fd.write(upload.read())
fd.close()