Hide creator_ip from non-admins

Hides `creator_ip` attribute in @examine command from non-admins
(i.e. Builders).

commands/cmdcustomexamine.py

@@ -0,0 +1,14 @@
+from evennia.commands.default.building import CmdExamine
+
+class CmdCustomExamine(CmdExamine):
+    def format_attributes(self, obj):
+        caller = self.caller
+        output = "\n  "
+        for attr in obj.db_attributes.all():
+            if attr.db_key == "creator_ip" and not caller.permissions.check("Admin"):
+                continue
+            output += self.format_single_attribute(attr)
+            output += "\n  "
+        if output.strip():
+            # we don't want just an empty line
+            return output

commands/default_cmdsets.py

@@ -23,6 +23,7 @@ from evennia.contrib.grid.ingame_map_display import MapDisplayCmdSet
 from evennia.contrib.grid import simpledoor
 from lib.rpsystem.rpsystem import RPSystemCmdSet
 from evennia.contrib.game_systems.clothing import ClothedCharacterCmdSet
+from commands.cmdcustomexamine import CmdCustomExamine
 
 
 class CharacterCmdSet(default_cmds.CharacterCmdSet):
@@ -65,6 +66,9 @@ class CharacterCmdSet(default_cmds.CharacterCmdSet):
         # Clothing: wear
         self.add(ClothedCharacterCmdSet())
 
+        # Overrides @examine
+        self.add(CmdCustomExamine())
+
 class AccountCmdSet(default_cmds.AccountCmdSet):
     """
     This is the cmdset available to the Account at all times. It is