from flask import Flask, render_template, redirect, url_for from flask_wtf import FlaskForm from wtforms import StringField, SubmitField from wtforms.validators import DataRequired, Email app = Flask(__name__) app.config['SECRET_KEY'] = 'your_secret_key_here' class EditProfileForm(FlaskForm): username = StringField('Username', validators=[DataRequired()]) email = StringField('Email', validators=[DataRequired(), Email()]) submit = SubmitField('Save Changes') @app.route('/edit_profile', methods=['GET', 'POST']) def edit_profile(): form = EditProfileForm() if form.validate_on_submit(): # Save changes to database return redirect(url_for('profile')) return render_template('edit_profile.html', form=form)In the above example, the EditProfileForm is created and included in the edit_profile view function. When the user submits the form, the validate_on_submit method is called to ensure that the form inputs are valid. If they are, the changes are saved to the database and the user is redirected to their profile page. The package/library used in this example is Flask-WTF, which is a Flask extension that integrates the WTForms library with Flask.