vercel.json

{

  "builds": [{

      "src": "projectsite/wsgi.py",

      "use": "@vercel/python",

      "config": { "maxLambdaSize": "15mb", "runtime": "python3.9" }

  }],

  "routes": [

      {

          "src": "/(.*)",

          "dest": "projectsite/wsgi.py"

      }

  ]

}