How can I render WTForms in my Flask application?

How can I render WTForms in my Flask application?

To render WTForms in Flask, you need to create a form class and then use it in your route. Do you have a specific form in mind?

Yes, I want to create a simple login form with username and password fields.

You can create a form class like this:

from flask_wtf import FlaskForm
from wtforms import StringField, PasswordField, SubmitField
from wtforms.validators import DataRequired

class LoginForm(FlaskForm):
    username = StringField('Username', validators=[DataRequired()])
    password = PasswordField('Password', validators=[DataRequired()])
    submit = SubmitField('Login')

Would you like to know how to render this form in a template?

Yes, how do I render it in a Jinja2 template?

In your Jinja2 template, you can render the form like this:

<form method="POST">
    {{ form.hidden_tag() }}
    {{ form.username.label }} {{ form.username(size=32) }}
    {{ form.password.label }} {{ form.password(size=32) }}
    {{ form.submit() }}
</form>

This will create a simple login form. Do you need help with anything else?