def saveFile()

in application.py [0:0]


def saveFile():
    f = request.files['filename']
    application.config['UPLOAD_FILE_PATH'] = os.path.join(application.config['UPLOAD_FOLDER'], f.filename)
    f.save(application.config['UPLOAD_FILE_PATH'])

    # reset output data when a new file is uploaded
    global data_output
    data_output = {}

    return redirect("/dashboard", code=302)