fixed some problems with notification displaying

hc_data.py

@@ -44,4 +44,4 @@ class Data(object):
             self.json_string = self.var.read()
             self.json_dict = json.loads(self.json_string.decode('ascii'))
             self.device_count = self.json_dict['deviceCount']
-            self.users = self.json_dict['users']
\ No newline at end of file
+            self.users = self.json_dict['users']

hc_main.py

@@ -59,8 +59,8 @@ class Main(object):
                                }
 
         #compare saved and fetched value
-        if (self.args.show_user and
-                cached_data_dict['device_count'] != self.data_interface.device_count):
+        if (cached_data_dict['device_count'] !=
+            self.data_interface.device_count):
             self.header.count_changed = True
 
         #diff saved and new recieved list
@@ -102,19 +102,21 @@ class Main(object):
         ## print count
         if self.args.printing:
             if self.args.show_user:
-                print("HackHro Users: {}   ".format(len(self.data_interface.users)))
+                print("HackHro Users: {}   ".format(
+                        len(self.data_interface.users)))
 
-                if self.user_left_list is not None:
+                if self.user_left_list:
                     print("Users left: ", flush=True, end="")
-                    for user in user_left_list:
+                    for user in self.user_left_list:
                         print(user['name'] + " ", flush=True)
 
-                if self.user_new_list is not None:
+                if self.user_new_list:
                     print("Users new: ", flush=True, end="")
-                    for user in user_new_list:
+                    for user in self.user_new_list:
                         print(user['name'] + " ", end="", flush=True)
             else:
-                print("HackHro Devcies: ", self.data_interface.device_count, flush=True)
+                print("HackHro Devcies: ",
+                    self.data_interface.device_count, flush=True)
         # end of printing routine
         #######################################################################
 
@@ -124,13 +126,14 @@ class Main(object):
         #######################################################################
         # notification routine
         if self.args.notify and self.header.count_changed:
+
             ###init dbus notifications
             bus = dbus.SessionBus()
             notif = bus.get_object(self.header.item, self.header.path)
             notify = dbus.Interface(notif, self.header.interface)
             notification_string = ""
 
-            if not self.args.show_user:
+            if self.args.show_user:
                 title = "HackSpace Users Changed"
                 if self.user_left_list is not None:
                     for user in self.user_left_list:
@@ -171,6 +174,7 @@ class Main(object):
                         notification_string = "the user " +\
                                               str(user['name']) +\
                                               " just came in."
+
                         #create notification
                         notify.Notify(self.header.app_name,
                                       0,
@@ -182,7 +186,7 @@ class Main(object):
                                       self.header.time)
             else:
                 title = "HackSpace Devices Changed"
-                notification_string = str(device_count)
+                notification_string = str(self.data_interface.device_count)
                 #create notification
                 notify.Notify(self.header.app_name,
                               0,