<!doctype html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Upload File</title> </head> <body> <h1>Upload new File</h1> <form method="post" enctype="multipart/form-data"> <input type="file" name="file"> <input type="submit" value="Upload"> </form> {% with messages = get_flashed_messages() %} {% if messages %} <ul> {% for message in messages %} <li>{{ message }}</li> {% endfor %} </ul> {% endif %} {% endwith %} </body> </html>