AMP plugin crashs on start with Python 3 (issue #917)

glances/amps/glances_systemv.py

@@ -69,7 +69,7 @@ class Amp(GlancesAmp):
         # Get the systemctl status
         logger.debug('{}: Update stats using service {}'.format(self.NAME, self.get('service_cmd')))
         try:
-            res = check_output(self.get('service_cmd').split(), stderr=STDOUT)
+            res = check_output(self.get('service_cmd').split(), stderr=STDOUT).decode('utf-8')
         except OSError as e:
             logger.debug('{}: Error while executing service ({})'.format(self.NAME, e))
         else:

glances/amps_list.py

@@ -122,7 +122,7 @@ class AmpsList(object):
             else:
                 # Set the process number to 0
                 v.set_count(0)
-                if v.count_min() > 0:
+                if v.count_min() is not None and v.count_min() > 0:
                     # Only display the "No running process message" is countmin is defined
                     v.set_result("No running process")