python - Database query in django -

i creating simple quiz app using django. when user submits answer question, answer checked using correct answer present in database.

views.py

from django.shortcuts import render,get_object_or_404 .models import question django.http import httpresponseredirect, httpresponse django.core.urlresolvers import reverse  def detail(request, question_id):     ques = get_object_or_404(question, pk=question_id)     return render(request, 'detail.html', {'ques': ques})  def index(request):     questions = question.objects.all()     return render(request,"question.html",{"questions":questions})  def vote(request,question_id):     p = get_object_or_404(question, pk=question_id)     selected_choice = p.choice_set.get(pk = request.post['choice'])     print selected_choice,p.answer_text     if(selected_choice == p.answer_text):         print "yes"     x = int(question_id) + 1     return httpresponseredirect(reverse('detail', args=(str(x)))) 

the vote function called after user clicks submit button. check performed here. when print selected_choice , p.answer_text, show correct values. when compare them using equal operator, doesn't return true when both same.

models.py     django.db import models      class question(models.model):         question_text = models.charfield(max_length = 400)         answer_text = models.charfield(max_length = 400,default = "name")         def __unicode__(self):             return self.question_text,self.answer_text     class choice(models.model):         question = models.foreignkey(question)         choice_text = models.charfield(max_length = 200)         def __unicode__(self):             return self.choice_text