Use 'not' to test for empty sets

Empty sets evaluate to False.

glances/plugins/glances_cpu.py

@@ -166,7 +166,7 @@ class Plugin(GlancesPlugin):
         ret = []
 
         # Only process if stats exist...
-        if self.stats == {}:
+        if not self.stats:
             return ret
 
         # Build the string message

glances/plugins/glances_docker.py

@@ -214,7 +214,7 @@ class Plugin(GlancesPlugin):
         ret = []
 
         # Only process if stats exist (and non null) and display plugin enable...
-        if self.stats == {} or args.disable_docker or len(self.stats['containers']) == 0:
+        if not self.stats or args.disable_docker or len(self.stats['containers']) == 0:
             return ret
 
         # Build the string message

glances/plugins/glances_load.py

@@ -137,7 +137,7 @@ class Plugin(GlancesPlugin):
         ret = []
 
         # Only process if stats exist...
-        if self.stats == {}:
+        if not self.stats:
             return ret
 
         # Build the string message

glances/plugins/glances_mem.py

@@ -179,7 +179,7 @@ class Plugin(GlancesPlugin):
         ret = []
 
         # Only process if stats exist...
-        if self.stats == {}:
+        if not self.stats:
             return ret
 
         # Build the string message

glances/plugins/glances_memswap.py

@@ -150,7 +150,7 @@ class Plugin(GlancesPlugin):
         ret = []
 
         # Only process if stats exist...
-        if self.stats == {}:
+        if not self.stats:
             return ret
 
         # Build the string message

glances/plugins/glances_processcount.py

@@ -77,7 +77,7 @@ class Plugin(GlancesPlugin):
             ret.append(self.curse_add_line(msg))
             return ret
 
-        if self.stats == {}:
+        if not self.stats:
             return ret
 
         # Display the filter (if it exists)

glances/plugins/glances_quicklook.py

@@ -87,7 +87,7 @@ class Plugin(GlancesPlugin):
         ret = []
 
         # Only process if stats exist...
-        if self.stats == {} or args.disable_quicklook:
+        if not self.stats or args.disable_quicklook:
             return ret
 
         # Define the bar

glances/plugins/glances_sensors.py

@@ -156,7 +156,7 @@ class Plugin(GlancesPlugin):
         # Add specifics informations
         # Alert
         for i in self.stats:
-            if i['value'] == []:
+            if not i['value']:
                 continue
             if i['type'] == 'battery':
                 self.views[i[self.get_key()]]['value']['decoration'] = self.get_alert(100 - i['value'], header=i['type'])
@@ -169,7 +169,7 @@ class Plugin(GlancesPlugin):
         ret = []
 
         # Only process if stats exist and display plugin enable...
-        if  not self.stats or args.disable_sensors or self.stats == []:
+        if not self.stats or args.disable_sensors:
             return ret
 
         # Build the string message