add CSRF middlewares to avoid errors when submitting forms

pyweb/settings.py

@@ -207,6 +207,8 @@ TEMPLATE_LOADERS = (
 MIDDLEWARE_CLASSES = (
     'django.middleware.common.CommonMiddleware',
     'django.contrib.sessions.middleware.SessionMiddleware',
+    'django.middleware.csrf.CsrfViewMiddleware',
+    'django.middleware.csrf.CsrfResponseMiddleware',
     'django.middleware.locale.LocaleMiddleware',
     'django.contrib.auth.middleware.AuthenticationMiddleware',
 )