Question 10: Consider the following flask application. If the applica…

1from flask import Flask, abort
2app = Flask(__name__)
3
4users = ["admin", "user_1", "user_2", "user_3"]
5
6@app.route('/home/<string:username>', methods = ['POST'])
7def home(username):
8    if username in users:
9        return f"<h1>Hello {username}, Welcome!</h1>"
10    else:
11        abort(407)
12
13@app.errorhandler(404)
14def user_error_1(error):
15    return "<h1>The user you are looking for is invalid.</h1>"
16
17@app.errorhandler(405)
18def user_error_2(error):
19    return "<h1>Please check the web request.</h1>"
20
21@app.errorhandler(407)
22def user_error_4(error):
23    return "<h1>Proxy authentication required.</h1>"
24
25app.run()