python下载文件

from flask import Flask,request,Response

app = Flask(__name__)

@app.route('/', methods=["GET"])
def download():
    file = request.args.get("file", 0)
    f = open(file,'r')
    data = f.read()
    f.close()

    return Response(data, content_type='application/octet-stream',headers={
        'Content-Disposition':'attachment; filename={}'.format(f.name)
    })

if __name__ == '__main__': 
    app.run(host='0.0.0.0',
            threaded=True,
            debug=False,
            port=8080)