How to select the download location in flask send

I am working on a flask based UI and there I am downloading a text file using send_file function.

This is my directory setup:

    /static
      /design.css
    /templates
      /index.html
      /upload.html
      /engine.html
   /output
      /text_file.txt
    /main.py

Below is the code:

@app.route('/download')
def download_file():
    path = "output\\text_file.txt"
    return send_file(path, as_attachment=True)

And below is related html button which is initiating the download:

 <button>
        <a href="{{ url_for('.download_file') }}" style="color: white; text-decoration: none;">Download Source Text
        </a>
 </button>

Now this function is directly downloading the file in downloads folder of my local C drive. But I want to get an option to select the location like below:

(image taken from google)

How can I achieve this?

CodePudding user response：

The path to save the downloaded file is decided by a browser and server-side application cannot change this--and this is a feature, not a bug.

You think about it--say a server application can pick a location to save a file, what if my website saves an exe file to your C:\Windows folder? The consequence is disastrous...

Some modern browsers allow users to set a default download path. If you discover that your file is saved to a folder, such as Downloads, without asking you, most likely you have this browser feature enabled.