diff --git a/calsocial/config_testing.py b/calsocial/config_testing.py
index 0580273..6f98dcf 100644
--- a/calsocial/config_testing.py
+++ b/calsocial/config_testing.py
@@ -8,7 +8,7 @@ REGISTRATION_ENABLED = True
 DEFAULT_TIMEZONE = 'Europe/Budapest'
 
 DEBUG = False
-TESTING=True
+TESTING = True
 SQLALCHEMY_DATABASE_URI = 'sqlite:///'
 SQLALCHEMY_TRACK_MODIFICATIONS = False
 SECRET_KEY = 'WeAreTesting'
diff --git a/calsocial/forms.py b/calsocial/forms.py
index 4d2ed3a..23150c0 100644
--- a/calsocial/forms.py
+++ b/calsocial/forms.py
@@ -31,7 +31,7 @@ from wtforms.widgets import TextArea
 from calsocial.models import EventVisibility, EVENT_VISIBILITY_TRANSLATIONS
 
 
-class UsernameAvailable(object):  # pylint: disable=too-few-public-methods
+class UsernameAvailable:  # pylint: disable=too-few-public-methods
     """Checks if a username is available
     """
 
@@ -62,7 +62,7 @@ class UsernameAvailable(object):  # pylint: disable=too-few-public-methods
         raise StopValidation(message)
 
 
-class EmailAvailable(object):  # pylint: disable=too-few-public-methods
+class EmailAvailable:  # pylint: disable=too-few-public-methods
     """Checks if an email address is available
     """
 
@@ -408,5 +408,6 @@ class ProfileForm(FlaskForm):
             })
         FlaskForm.__init__(self, *args, **kwargs)
 
-        self.builtin_avatar.choices = [(name, name) for name in current_app.config['BUILTIN_AVATARS']]
+        self.builtin_avatar.choices = [(name, name)
+                                       for name in current_app.config['BUILTIN_AVATARS']]
         self.profile = profile
diff --git a/calsocial/models.py b/calsocial/models.py
index 457f611..7442b08 100644
--- a/calsocial/models.py
+++ b/calsocial/models.py
@@ -101,7 +101,7 @@ class ResponseType(Enum):
             return self.name.lower() == other.lower()  # pylint: disable=no-member
 
         if isinstance(other, (int, float)):
-            return self.value == other
+            return self.value == other  # pylint: disable=comparison-with-callable
 
         return Enum.__eq__(self, other)
 
@@ -792,7 +792,7 @@ class Response(db.Model):  # pylint: disable=too-few-public-methods
     response = db.Column(db.Enum(ResponseType), nullable=False)
 
 
-class AppState(app_state_base(db.Model)):  # pylint: disable=too-few-public-methods
+class AppState(app_state_base(db.Model)):  # pylint: disable=too-few-public-methods,inherit-non-class
     """Database model for application state values
     """