diff --git a/cas_server/tests.py b/cas_server/tests.py
index 222596e..710b890 100644
--- a/cas_server/tests.py
+++ b/cas_server/tests.py
@@ -10,25 +10,25 @@ from cas_server import utils
 
 
 def get_login_page_params():
-        client = Client()
-        response = client.get('/login')
-        form = response.context["form"]
-        params = {}
-        for field in form:
-            if field.value():
-                params[field.name] = field.value()
-            else:
-                params[field.name] = ""
-        return client, params
+    client = Client()
+    response = client.get('/login')
+    form = response.context["form"]
+    params = {}
+    for field in form:
+        if field.value():
+            params[field.name] = field.value()
+        else:
+            params[field.name] = ""
+    return client, params
 
 
 def get_auth_client():
-        client, params = get_login_page_params()
-        params["username"] = settings.CAS_TEST_USER
-        params["password"] = settings.CAS_TEST_PASSWORD
+    client, params = get_login_page_params()
+    params["username"] = settings.CAS_TEST_USER
+    params["password"] = settings.CAS_TEST_PASSWORD
 
-        client.post('/login', params)
-        return client
+    client.post('/login', params)
+    return client
 
 
 def get_user_ticket_request(service):
diff --git a/cas_server/utils.py b/cas_server/utils.py
index 8a2a040..bd7e273 100644
--- a/cas_server/utils.py
+++ b/cas_server/utils.py
@@ -30,7 +30,7 @@ def context(params):
     return params
 
 
-def JsonResponse(request, data):
+def json_response(request, data):
     data["messages"] = []
     for msg in messages.get_messages(request):
         data["messages"].append({'message': msg.message, 'level': msg.level_tag})
@@ -146,16 +146,16 @@ def gen_saml_id():
 class PGTUrlHandler(BaseHTTPServer.BaseHTTPRequestHandler):
     PARAMS = {}
 
-    def do_GET(s):
-        s.send_response(200)
-        s.send_header(b"Content-type", "text/plain")
-        s.end_headers()
-        s.wfile.write(b"ok")
-        url = urlparse(s.path)
+    def do_GET(self):
+        self.send_response(200)
+        self.send_header(b"Content-type", "text/plain")
+        self.end_headers()
+        self.wfile.write(b"ok")
+        url = urlparse(self.path)
         params = dict(parse_qsl(url.query))
         PGTUrlHandler.PARAMS.update(params)
 
-    def log_message(self, template, *args):
+    def log_message(self, *args):
         return
 
     @staticmethod
diff --git a/cas_server/views.py b/cas_server/views.py
index 37fe179..2b33a6c 100644
--- a/cas_server/views.py
+++ b/cas_server/views.py
@@ -35,7 +35,7 @@ import cas_server.utils as utils
 import cas_server.forms as forms
 import cas_server.models as models
 
-from .utils import JsonResponse
+from .utils import json_response
 from .models import ServiceTicket, ProxyTicket, ProxyGrantingTicket
 from .models import ServicePattern
 
@@ -154,13 +154,13 @@ class LogoutView(View, LogoutMixin):
                         'url': url,
                         'session_nb': session_nb
                     }
-                    return JsonResponse(request, data)
+                    return json_response(request, data)
                 else:
                     return redirect("cas_server:login")
             else:
                 if self.ajax:
                     data = {'status': 'success', 'detail': 'logout', 'session_nb': session_nb}
-                    return JsonResponse(request, data)
+                    return json_response(request, data)
                 else:
                     return render(
                         request,
@@ -253,7 +253,7 @@ class LoginView(View, LogoutMixin):
             raise EnvironmentError("invalid output for LoginView.process_post")
         return self.common()
 
-    def process_post(self, pytest=False):
+    def process_post(self):
         if not self.check_lt():
             values = self.request.POST.copy()
             # if not set a new LT and fail
@@ -330,7 +330,7 @@ class LoginView(View, LogoutMixin):
                 )
                 if self.ajax:
                     data = {"status": "error", "detail": "confirmation needed"}
-                    return JsonResponse(self.request, data)
+                    return json_response(self.request, data)
                 else:
                     warn_form = forms.WarnForm(initial={
                         'service': self.service,
@@ -357,7 +357,7 @@ class LoginView(View, LogoutMixin):
                     return HttpResponseRedirect(redirect_url)
                 else:
                     data = {"status": "success", "detail": "auth", "url": redirect_url}
-                    return JsonResponse(self.request, data)
+                    return json_response(self.request, data)
         except ServicePattern.DoesNotExist:
             error = 1
             messages.add_message(
@@ -401,7 +401,7 @@ class LoginView(View, LogoutMixin):
             )
         else:
             data = {"status": "error", "detail": "auth", "code": error}
-            return JsonResponse(self.request, data)
+            return json_response(self.request, data)
 
     def authenticated(self):
         """Processing authenticated users"""
@@ -423,7 +423,7 @@ class LoginView(View, LogoutMixin):
                     "detail": "login required",
                     "url": utils.reverse_params("cas_server:login", params=self.request.GET)
                 }
-                return JsonResponse(self.request, data)
+                return json_response(self.request, data)
             else:
                 return utils.redirect_params("cas_server:login", params=self.request.GET)
 
@@ -433,7 +433,7 @@ class LoginView(View, LogoutMixin):
         else:
             if self.ajax:
                 data = {"status": "success", "detail": "logged"}
-                return JsonResponse(self.request, data)
+                return json_response(self.request, data)
             else:
                 return render(
                     self.request,
@@ -476,7 +476,7 @@ class LoginView(View, LogoutMixin):
                 "detail": "login required",
                 "url": utils.reverse_params("cas_server:login",  params=self.request.GET)
             }
-            return JsonResponse(self.request, data)
+            return json_response(self.request, data)
         else:
             return render(
                 self.request,