Чтобы создать форму звездного рейтинга в Flask, вы можете использовать различные методы. Вот несколько примеров кода:

1. Использование HTML и JavaScript:
   HTML-шаблон (rating.html):

   <form action="/submit-rating" method="POST">
    <div class="rating">
      <input type="radio" id="star5" name="rating" value="5" /><label for="star5"></label>
      <input type="radio" id="star4" name="rating" value="4" /><label for="star4"></label>
      <input type="radio" id="star3" name="rating" value="3" /><label for="star3"></label>
      <input type="radio" id="star2" name="rating" value="2" /><label for="star2"></label>
      <input type="radio" id="star1" name="rating" value="1" /><label for="star1"></label>
    </div>
    <input type="submit" value="Submit" />
   </form>

   Маршрут Flask (app.py):

   from flask import Flask, render_template, request
   app = Flask(__name__)
   @app.route('/submit-rating', methods=['POST'])
   def submit_rating():
      rating = request.form['rating']
      # Process the rating here (e.g., save it to a database)
      return 'Rating submitted: ' + rating
   @app.route('/')
   def index():
      return render_template('rating.html')
   if __name__ == '__main__':
      app.run()

2. Использование Flask-WTF и WTForms:
   Установите Flask-WTF с помощью pip: pip install Flask-WTF

   Маршрут Flask (app.py):

   from flask import Flask, render_template
   from flask_wtf import FlaskForm
   from wtforms import RadioField
   from wtforms.validators import InputRequired
   app = Flask(__name__)
   app.config['SECRET_KEY'] = 'your-secret-key'
   class RatingForm(FlaskForm):
      rating = RadioField('Rating', choices=[('5', '5 stars'), ('4', '4 stars'), ('3', '3 stars'), ('2', '2 stars'), ('1', '1 star')],
                          validators=[InputRequired()])
   @app.route('/', methods=['GET', 'POST'])
   def index():
      form = RatingForm()
      if form.validate_on_submit():
          # Process the rating here (e.g., save it to a database)
          return 'Rating submitted: ' + form.rating.data
      return render_template('rating.html', form=form)
   if __name__ == '__main__':
      app.run()

Не забудьте создать в проекте каталог «шаблоны» и поместить в него файл «rating.html».