added some stuff to wsgi.py file

app.py

@@ -91,3 +91,6 @@ def download_assessment(filename):
         print(f"Error serving assessment file: {str(e)}")
         app.logger.exception(f"Error serving assessment file: {str(e)}")
         abort(500) 
+
+if __name__ == '__main__':
+    app.run(debug=True, port=int(os.environ.get('PORT', 5000)))
\ No newline at end of file

wsgi.py

 import sys
 import logging
+from app import app as application
+
 logging.basicConfig(stream=sys.stderr)
 
-from app import app as application
 if __name__ == '__main__':
-    application.run(host='0.0.0.0', port=8080)
+    application.run(host='0.0.0.0', port=int(os.environ.get('PORT', 8080)))