Make sure player input is valid unicode. If an un-decodable character is encountered, replace it with question marks. We'll need to test this with a more unicode capable client than I have.

src/cmdhandler.py

@@ -133,7 +133,9 @@ class Command(object):
         """
         Instantiates the Command object and does some preliminary parsing.
         """
-        self.raw_input = raw_input
+        # If we get a unicode string with un-recognizable characters, replace
+        # them instead of throwing errors.
+        self.raw_input = unicode(raw_input, errors='replace')
         self.source_object = source_object
         self.session = session
         # The work starts here.
@@ -441,7 +443,8 @@ def handle(command, ignore_state=False):
             # Nothing sent in of value, ignore it.
             raise ExitCommandHandler
 
-        state = None #no state by default
+        # No state by default.
+        state = None 
         
         if command.session and not command.session.logged_in:
             # Not logged in, look through the unlogged-in command table.

src/session.py

@@ -47,6 +47,10 @@ class SessionProtocol(StatefulTelnetProtocol):
         self.address = self.getClientAddress()
         self.name = None
         self.uid = None
+        # This is merely here to serve as a convenient reference. It is not
+        # necessarily the most up to date version of the object, so it is NOT
+        # safe to look at pobject's location or any other attributes from
+        # the Object model.
         self.pobject = None
         self.logged_in = False
         # The time the user last issued a command.
@@ -78,9 +82,12 @@ class SessionProtocol(StatefulTelnetProtocol):
         Any line return indicates a command for the purpose of a MUD. So we take
         the user input and pass it to this session's pobject.
         """
-        if self.pobject:
+        if self.is_loggedin():
             # Session is logged in, run through the normal object execution.
-            self.pobject.execute_cmd(data, session=self)
+            # Get the most up to date copy of the Object.
+            pobject = self.get_pobject()
+            if pobject:
+                pobject.execute_cmd(data, session=self)
         else:
             # Not logged in, manually execute the command.
             cmdhandler.handle(cmdhandler.Command(None, data, session=self))