fix python warnings identified by LGTM (#4275)

* python.d: remove base.py

* python.d: charts.py lgtm fixes

* python.d: mongodb lgtm fixes

* python.d: smartd_log lgtm fixes

* python.d: remove base.py from makefile

2 files changed, 9 insertions, 10 deletions

diff --git a/python.d/python_modules/base.py b/python.d/python_modules/base.py
deleted file mode 100644
index 17be75165a..0000000000
--- a/python.d/python_modules/base.py
+++ /dev/null
@@ -1,10 +0,0 @@
-# -*- coding: utf-8 -*-
-# Description: backward compatibility with old version
-# SPDX-License-Identifier: GPL-3.0+
-
-from bases.FrameworkServices.SimpleService import SimpleService
-from bases.FrameworkServices.UrlService import UrlService
-from bases.FrameworkServices.SocketService import SocketService
-from bases.FrameworkServices.LogService import LogService
-from bases.FrameworkServices.ExecutableService import ExecutableService
-from bases.FrameworkServices.MySQLService import MySQLService
diff --git a/python.d/python_modules/bases/charts.py b/python.d/python_modules/bases/charts.py
index 0c6e78c678..14b2bd562e 100644
--- a/python.d/python_modules/bases/charts.py
+++ b/python.d/python_modules/bases/charts.py
@@ -307,6 +307,12 @@ class Dimension:
             return self.id == other
         return self.id == other.id
 
+    def __ne__(self, other):
+        return not self == other
+
+    def __hash__(self):
+        return hash(repr(self))
+
     def create(self):
         return DIMENSION_CREATE.format(**self.params)
 
@@ -363,6 +369,9 @@ class ChartVariable:
             return self.id == other.id
         return False
 
+    def __ne__(self, other):
+        return not self == other
+
     def __hash__(self):
         return hash(repr(self))