Day 61 L464 - Installing Flask-WTF

main.py

from flask import Flask, render_template

app = Flask(__name__)


@app.route("/")
def home():
    return render_template('index.html')


@app.route("/login")
def login():
    return render_template("login.html")


if __name__ == '__main__':
    app.run(debug=True)

Thank you so much it help me out .

so there is a problem with how the login button behave. aperrantly "button" tags dont accept href, to fix this all you neeed to do is to seperate them, like that:

	<a href="{{ url_for('login') }}">
            <button class="btn btn-primary btn-lg">Login</button>
            </a>
`This works thank you

<button onclick="window.location.href='{{ url_for('login') }}';">Login</button>

This also seems to work.

I received this: from jinja2 import Markup, escape ImportError: cannot import name 'Markup' from 'jinja2'

Tried the methods above but it did not work. What should I do?

Hi,
try this on your terminal: pip install --upgrade flask jinja2

For everyone who suffers from ImportError:
type this code below in your Terminal.

pip install Flask==2.0.3

This worked for me. Good Luck!

app = Flask(__name__)

@app.route("/")
def login():
    return render_template("login.html")

app.run()

I still have this error message after upgrading the framworks.

I still have this error message after upgrading the framworks.

Add Werkzeug==2.2.2 to your requirements.txt

I still have error on "address already in use and start with a new server port"

For people who see this part in December 2022 and receive error : ImportError: cannot import name 'Markup' from 'jinja2', put below codes inside of requirement.txt. Good luck!.

click==8.0.4 Flask==2.0.3 itsdangerous==2.1.2 Jinja2==3.1.1 MarkupSafe==2.1.1 Werkzeug==2.0.3

Thanks man this works.