@app.route('/<file_name>.txt')
def send_text_file(file_name):
    file_dot_text = '{0}.txt'.format(file_name)
    return app.send_static_file(file_dot_text)
Always returns EmptyQuerySet.
dataset/ETHPy150Open Rydgel/Fake-images-please/app.py/send_text_file--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.5/django/db/models/query.py/EmptyQuerySet.defer