Fix error in yesnoquestion causing lockout

evennia/commands/default/comms.py

@@ -1029,11 +1029,12 @@ class CmdChannel(COMMAND_DEFAULT_CLASS):
 
             ask_yes_no(
                 caller,
-                f"Are you sure you want to delete channel '{channel.key}'"
+                prompt=f"Are you sure you want to delete channel '{channel.key}' "
                 "(make sure name is correct!)? This will disconnect and "
                 "remove all users' aliases. {options}?",
-                _perform_delete,
+                yes_action=_perform_delete,
-                "Aborted."
+                no_action="Aborted.",
+                default="N"
             )
 
         if 'desc' in switches:
@@ -1143,11 +1144,11 @@ class CmdChannel(COMMAND_DEFAULT_CLASS):
                           if reason else '')
             ask_yes_no(
                 caller,
-                f"Are you sure you want to boot user {target.key} from "
+                prompt=f"Are you sure you want to boot user {target.key} from "
                 f"channel(s) {channames} (make sure name/channels are correct{reasonwarn}). "
                 "{options}?",
-                _boot_user,
+                yes_action=_boot_user,
-                "Aborted.",
+                no_action="Aborted.",
                 default="Y"
             )
             return

evennia/utils/evmenu.py

@@ -1631,10 +1631,12 @@ class CmdYesNoQuestion(Command):
     aliases = [_CMD_NOMATCH, "yes", "no", 'y', 'n', 'a', 'abort']
     arg_regex = r"^$"
 
-    def _clean(self):
+    def _clean(self, caller):
-        del self.caller.ndb._yes_no_question
+        del caller.ndb._yes_no_question
-        self.caller.cmdset.remove(YesNoQuestionCmdSet)
+        if not caller.cmdset.has(YesNoQuestionCmdSet) and hasattr(caller, "account"):
-
+            caller.account.cmdset.remove(YesNoQuestionCmdSet)
+        else:
+            caller.cmdset.remove(YesNoQuestionCmdSet)
 
     def func(self):
         """This is called when user enters anything."""
@@ -1645,6 +1647,10 @@ class CmdYesNoQuestion(Command):
                 yes_no_question = caller.account.ndb._yes_no_question
                 caller = caller.account
 
+            if not yes_no_question:
+                self._clean(caller)
+                return
+
             inp = self.cmdname
 
             if inp == _CMD_NOINPUT:
@@ -1657,7 +1663,7 @@ class CmdYesNoQuestion(Command):
 
             if inp in ('a', 'abort') and yes_no_question.allow_abort:
                 caller.msg("Aborted.")
-                self._clean()
+                self._clean(caller)
                 return
 
             caller.ndb._yes_no_question.session = self.session
@@ -1677,12 +1683,12 @@ class CmdYesNoQuestion(Command):
                 return
 
             # cleanup
-            self._clean()
+            self._clean(caller)
         except Exception as err:
             # make sure to clean up cmdset if something goes wrong
             caller.msg("|rError in ask_yes_no. Choice not confirmed (report to admin)|n")
             logger.log_trace("Error in ask_yes_no")
-            self._clean()
+            self._clean(caller)
             raise
 
 
@@ -1703,8 +1709,8 @@ class YesNoQuestionCmdSet(CmdSet):
         self.add(CmdYesNoQuestion())
 
 
-def ask_yes_no(caller, prompt, yes_action, no_action, default=None,
+def ask_yes_no(caller, prompt="Yes or No {options}?", yes_action="Yes", no_action="No",
-               allow_abort=False, session=None, *args, **kwargs):
+               default=None, allow_abort=False, session=None, *args, **kwargs):
     """
     A helper question for asking a simple yes/no question. This will cause
     the system to pause and wait for input from the player.
@@ -1721,8 +1727,9 @@ def ask_yes_no(caller, prompt, yes_action, no_action, default=None,
             with `(caller, *args, **kwargs)` when the No-choice is made.
             If a string, this string will be echoed back to the caller.
         default (str optional): This is what the user will get if they just press the
-            return key without giving any input. One of 'N', 'Y', 'A' or 'None'
+            return key without giving any input. One of 'N', 'Y', 'A' or `None`
-            for no default.  If 'A' is given, `allow_abort` is auto-set.
+            for no default (an explicit choice must be given). If 'A' is given,
+            `allow_abort` kwarg is ignored and assumed set.
         allow_abort (bool, optional): If set, the 'A(bort)' option is available
             (a third option meaning neither yes or no but just exits the prompt).
         session (Session, optional): This allows to specify the
@@ -1780,6 +1787,7 @@ def ask_yes_no(caller, prompt, yes_action, no_action, default=None,
     prompt = prompt.format(options=options)
 
     caller.ndb._yes_no_question = _Prompt()
+    caller.ndb._yes_no_question.prompt = prompt
     caller.ndb._yes_no_question.session = session
     caller.ndb._yes_no_question.prompt = prompt
     caller.ndb._yes_no_question.default = default