Untitled

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8" />
        <title>Запрос ответа</title>
        </head>
        <body>
        <form method ="POST" action="login">
        <p><b>Хотите начать работу с сервером?</b></p>
            <p><input type="radio" name="answer" value="a1">Да<Br>
            <input type="radio" name="answer" value="a2">Нет<Br>
            <p><input type="submit"></p>
    <title>Server</title>
</form>

</body>
</html>


from flask import Flask, send_from_directory, render_template,request
import re

app = Flask(__name__)


@app.route("/login", methods=['POST', 'GET'])
def main():
    return send_from_directory('template', 'First_window.html')