From f0d98e1a5b685491263390e934e9ab678e7915de Mon Sep 17 00:00:00 2001
From: Griatch <griatch@gmail.com>
Date: Sat, 30 Mar 2019 17:41:28 +0100
Subject: [PATCH] Fix Evmenu infinite loop on empty key. Resolves #1769.

---
 evennia/utils/evmenu.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/evennia/utils/evmenu.py b/evennia/utils/evmenu.py
index e4a5e4c5e0..c3a19a6dfa 100644
--- a/evennia/utils/evmenu.py
+++ b/evennia/utils/evmenu.py
@@ -1008,6 +1008,10 @@ class EvMenu(object):
 
         ncols = (_MAX_TEXT_WIDTH // table_width_max) + 1  # number of ncols
 
+        if ncols <= 0:
+            # no visible option at all
+            return ""
+
         # get the amount of rows needed (start with 4 rows)
         nrows = 4
         while nrows * ncols < nlist: