Simple example of using a RadioField in Flask-WTForms to generate a form.

example.html

<form method="post">
    {{ form.hidden_tag() }}
    {{ form.example }}
    <input type="submit">
</form>

siecje.py

from flask import Flask, render_template
from flask.ext.wtf import Form, RadioField

SECRET_KEY = 'development'

app = Flask(__name__)
app.config.from_object(__name__)
class SimpleForm(Form):
    example = RadioField('Label', choices=[('value','description'),('value_two','whatever')])


@app.route('/',methods=['post','get'])
def hello_world():
    form = SimpleForm()
    if form.validate_on_submit():
        print form.example.data
    else:
        print form.errors
    return render_template('example.html',form=form)

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