try to make pylint happy

dav_auth/emails.py

@@ -2,8 +2,8 @@
 from dav_base.emails import AbstractMail
 
 
-class PasswordSetEmail(AbstractMail):
-    _subject = u'Zugangsdaten'
+class PasswordSetEmail(AbstractMail):  # pylint: disable=too-few-public-methods
+    _subject = 'Zugangsdaten'
     _template_name = 'dav_auth/emails/password_set.txt'
 
     def __init__(self, user, password):
@@ -11,12 +11,12 @@ class PasswordSetEmail(AbstractMail):
         self._password = password
 
     def _get_recipients(self):
-        r = u'"{fullname}" <{email}>'.format(fullname=self._user.get_full_name(),
+        r = '"{fullname}" <{email}>'.format(fullname=self._user.get_full_name(),
                                              email=self._user.email)
         return [r]
 
     def _get_context_data(self, extra_context=None):
-        context = super(PasswordSetEmail, self)._get_context_data(extra_context=extra_context)
+        context = super()._get_context_data(extra_context=extra_context)
         context.update({
             'fullname': self._user.get_full_name(),
             'username': self._user.username,