main.py 文件源码

def get_coffee_image(coffee_id):
    """Gets the image attached to the coffee"""
    coffee_int_id = int(coffee_id)
    coffee = memcache.get("coffee_image_{}".format(coffee_int_id))
    if not coffee:
        coffee = Coffee.get_by_id(coffee_int_id)
        memcache.set("coffee_image_{}".format(coffee_int_id), coffee)
    if coffee:
        if coffee.image:
            return send_file(io.BytesIO(coffee.image))
    return app.send_static_file('coffee.png')