AttributeError: 'unicode' object has no attribute 'get'

#-*- coding: utf-8 -*-
from __future__ import unicode_literals
from django.http import HttpResponse, Http404, HttpResponseRedirect
from django.core.exceptions import ObjectDoesNotExist
 
from django.shortcuts import render_to_response, redirect
from models import News, Comments
from form import Commentform
from django.template.context_processors import csrf
import datetime
 
def main(request):
    return render_to_response('index.html')
def allarticles(request):
    return render_to_response('articl.html', {'article': News.objects.all().order_by('-news_time')[:15]})
def articles(request, id_num):
    com_form = Commentform
    args = {}
    args.update(csrf(request))
    args['articles'] = News.objects.get(id=id_num)
    args['comments'] = Comments.objects.filter(comments_News_id = id_num)
    args['form'] = com_form
    return render_to_response ('article.html', args)
def like(request, id_number):
    try:
        if request.session.[B]get[/B] ('id', False):
            redirect('/steal_site/allnews/')
        else:
            article = News.objects.get(id= id_number)
            article.news_sub +=1
            article.save()
            request.session['id'] = True
            return ('/steal_site/allnews/')
    except ObjectDoesNotExist:
        raise Http404
    return redirect ('/steal_site/allnews/')
def comment(request, id_num):
    if request.POST and ('pause' not in request.session):
        forms = Commentform(request.POST)
        if forms.is_valid():
            comment = forms.save(commit = False)
            comment.comments_News = News.objects.get(id = id_num )
            comment.save()
            request.session.set_expiry(60)
            request.session['pause'] = True
    a = '/steal_site/news/get/%s/' % id_num
    return redirect (a)
 
def contacts(request):
    return render_to_response('contacts.html')
def condition(request):
    return render_to_response('condition.html')

from django.conf.urls import url, include
 
from steal_site.views import main, allarticles, articles, contacts, condition, like, comment
 
urlpatterns = [
    url(r'^$', main),
    url(r'^allnews/$', allarticles),
    url(r'^news/get/(?P<id_num>\d+)/$', articles),
    url(r'^news/like/(?P<id_number>\d+)/$', like),
    url(r'^news/com/(?P<id_num>\d+)/$', comment),
    url(r'^contacts/', contacts),
    url(r'^condition/', condition),
    
]

comment.comments_News = News.objects.get(id = id_num )

comment.comments_News_id = id_num

render_to_response(<path_to_html_template>)

HttpResponse(b'content', content_type, status)

render(request, 'path_to_html_template')

    a = '/steal_site/news/get/%s/' % id_num