def from_dict(cls, file_dict):
        return cls(file_dict['filename'],
                   file_dict['content'],
                   file_dict.get('content-type', 'text/plain'))
Creates a SimpleUploadedFile object from
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.5/django/core/files/uploadedfile.py/SimpleUploadedFile.from_dict