diff --git a/.pylintrc3 b/.pylintrc3
index 93ecd62..a8f8571 100644
--- a/.pylintrc3
+++ b/.pylintrc3
@@ -7,7 +7,6 @@ ignored-argument-names=args|kwargs
 disable=
     E1101, # no-member
     E1121, # too-many-function-args
-    E0237, # assigning-non-slot
     R0801, # needs to remain disabled see https://github.com/PyCQA/pylint/issues/214
     R0912, # too-many-branches
     R0913, # too-many-arguments
diff --git a/network/base/scheduling.py b/network/base/scheduling.py
index bed453f..648310c 100644
--- a/network/base/scheduling.py
+++ b/network/base/scheduling.py
@@ -1,4 +1,7 @@
 """SatNOGS Network scheduling functions"""
+# ephem is missing lon, lat, elevation and horizon attributes in Observer class slots,
+# Disable assigning-non-slot pylint error:
+# pylint: disable=E0237
 from __future__ import absolute_import, division
 
 import math
diff --git a/network/base/views.py b/network/base/views.py
index aa8b29a..a421845 100644
--- a/network/base/views.py
+++ b/network/base/views.py
@@ -1,4 +1,7 @@
 """Django base views for SatNOGS Network"""
+# ephem is missing lon, lat, elevation and horizon attributes in Observer class slots,
+# Disable assigning-non-slot pylint error:
+# pylint: disable=E0237
 from __future__ import absolute_import
 
 from collections import defaultdict