SyntaxError：无效的语法，但遵循 WTF 文档，但仍然不接受

Question

Learning python flask and WTF. Been working on the code below based of the documentation and tutorials however cannot seem to locate the error.

Controller.py

from flask import Flask, escape, request, render_template, url_for, flash, redirect, send_from_directory, json, jsonify

from flask_wtf import FlaskForm
from wtforms import (StringField, PasswordField, SubmitField, BooleanField, DateTimeField, 
                        RadioField, SelectField, TextField, TextAreaField, SubmitField)

from wtforms.validators import DataRequired, Length, Email, EqualTo
from form import infoForm


app = Flask(__name__)
app.config['SECRET_KEY'] = 'asdfghjklqwertyuiop1234567890'

@app.route('/test', methods=['GET','POST'])
def test():
    breed = False 
    form = infoForm()
    if form.validate_on_submit():
        session['breed'] = form.breed.data
        session['neutered'] = form.neutered.data 
        session['mood'] = form.mood.data 
        session['food_option'] = form.food_option.data 
#       breed = form.breed.data
#       form.breed.data = ''
#   return render_template('test.html', form = form, breed = breed)
        return redirect(url_for('/'))
    return render_template('test.html', form = form) 

forms.py

class infoForm(FlaskForm):

    # Used by forms.py essentially  
    breed = StringField("What breed are you?", validators = [DataRequired()])
    neutered = BooleanField("Have you been neutered?"), choices = ['Yes'])
    mood = RadioField('Please choose your mood: '),choices = [('mood_one','Happy'), ('mood_2','Sad')]
    food_option = SelectField(u'Pick your fav food: '), choices = [('chic','Chicken') , ('bf','beef') , ('fish','fish')])   
    submit = SubmitField('Submit')

Response I get on my terminal is:

Traceback (most recent call last):
  File "/Users/himanshu/Documents/MasterInt/HMSpython/controller.py", line 21, in <module>
    from form import infoForm
  File "/Users/himanshu/Documents/MasterInt/HMSpython/form.py", line 22
    food_option = SelectField(u'Pick your fav food: ', choices = [('chic','Chicken') , ('bf','beef') , ('fish','fish')])    
              ^

The arrow is under - after the word 'chic',

Would like to understand where am I going wrong as I did follow the documentation?

Thank you!

Answer 1

You got closing parenthesis ')' in wrong place on radiofields and booleanfield. You close the parenthesis before choices. Maybe that's the problem. And put a space after comma, not before. You can see what i mean down below.

class infoForm(FlaskForm):

    # Used by forms.py essentially  
    breed = StringField("What breed are you?", validators=[DataRequired()])
    neutered = BooleanField("Have you been neutered?", choices=['Yes'])
    mood = RadioField('Please choose your mood:', choices=[('mood_one', 'Happy'), ('mood_2', 'Sad')])
    food_option = SelectField(u'Pick your fav food:', choices=[('chic', 'Chicken'), ('bf', 'beef'), ('fish', 'fish')])   
    submit = SubmitField('Submit')