python - Django csrf token missing or incorrect error 403 -

when submit form following error:

csrf verification failed

reason given failure:

csrf token missing or incorrect. 

my views.py is:

def name(request):    if request.method == 'post':         form=nameform(request.post)         if form.is_valid():             name=form.cleandata['your_name']             return httpresponseredirect('/thanks/',requestcontext(request))      else:         form=nameform()     return render_to_response('contact.html') 

my setting.py file:

middleware = [ 'django.middleware.security.securitymiddleware', 'django.contrib.sessions.middleware.sessionmiddleware', 'django.middleware.common.commonmiddleware', 'django.middleware.csrf.csrfviewmiddleware', 'django.contrib.auth.middleware.authenticationmiddleware', 'django.contrib.messages.middleware.messagemiddleware', 'django.middleware.clickjacking.xframeoptionsmiddleware', ] 

my forms.py file is:

class nameform(forms.form):     your_name=forms.charfield(initial='your name',max_length=100) 

my contact.html is:

<form action="/your-name/" method="post"> {% csrf_token %} {{form}} <input type="submit" value="submit" /> </form> 

urls.py is:

urlpatterns = [ url(r'^admin/', admin.site.urls), url(r'^search/$', search),url(r'^contact/$',contact), url(r'^name/$',name),url(r'^your-name',name),url(r'^thanks/$',thank) ] 

use render function render template, instead of render_to_response.

from django.shortcuts import render  def name(request):   if request.method == 'post':     form = nameform(request.post)     if form.is_valid():         name = form.cleaned_data['your_name']         return httpresponseredirect('/thanks/', requestcontext(request))     else:         form = nameform()     return render(request, 'contact.html')