From 2be779ccae8cbcf86ae9b36ae1003f70c23f05f9 Mon Sep 17 00:00:00 2001
From: Eric Lin <anselor@gmail.com>
Date: Sat, 18 Jul 2020 16:40:21 -0400
Subject: Added an additional check for isinstance(method, Callable) since
 there are scenarios where inspect.ismethod() fails for some reason

---
 cmd2/cmd2.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'cmd2')

diff --git a/cmd2/cmd2.py b/cmd2/cmd2.py
index 25251bef..2215f818 100644
--- a/cmd2/cmd2.py
+++ b/cmd2/cmd2.py
@@ -432,7 +432,8 @@ class Cmd(cmd.Cmd):
         cmdset.on_register(self)
         methods = inspect.getmembers(
             cmdset,
-            predicate=lambda meth: inspect.ismethod(meth) and meth.__name__.startswith(COMMAND_FUNC_PREFIX))
+            predicate=lambda meth: (inspect.ismethod(meth) or isinstance(meth, Callable)) and
+                                   meth.__name__.startswith(COMMAND_FUNC_PREFIX))
 
         installed_attributes = []
         try:
-- 
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