diff --git a/homeassistant/components/zwave_js/discovery_data_template.py b/homeassistant/components/zwave_js/discovery_data_template.py
index d6b8c6cf72a..6d13e823d59 100644
--- a/homeassistant/components/zwave_js/discovery_data_template.py
+++ b/homeassistant/components/zwave_js/discovery_data_template.py
@@ -264,6 +264,7 @@ class FanSpeedDataTemplate:
         Values should indicate the highest allowed device setting for each
         actual speed.
         """
+        # pylint: disable=no-self-use
         return None
 
 
diff --git a/homeassistant/components/zwave_js/fan.py b/homeassistant/components/zwave_js/fan.py
index fee9094ca20..bfe9a2de5d9 100644
--- a/homeassistant/components/zwave_js/fan.py
+++ b/homeassistant/components/zwave_js/fan.py
@@ -153,7 +153,7 @@ class ConfiguredSpeedRangeZwaveFan(ZwaveFan):
         elif percentage == 0:
             zwave_speed = 0
         else:
-            assert percentage >= 0 and percentage <= 100
+            assert 0 <= percentage <= 100
             zwave_speed = self.speed_configuration[
                 math.ceil(percentage / self.percentage_step) - 1
             ]