diff --git a/Lib/lib-tk/Tix.py b/Lib/lib-tk/Tix.py
index 2616252..f1a1091 100755
--- a/Lib/lib-tk/Tix.py
+++ b/Lib/lib-tk/Tix.py
@@ -405,7 +405,7 @@
         elif kw: cnf = kw
         options = ()
         for k, v in cnf.items():
-            if callable(v):
+            if hasattr(v, '__call__'):
                 v = self._register(v)
             options = options + ('-'+k, v)
         return master.tk.call(('image', 'create', imgtype,) + options)
diff --git a/Lib/lib-tk/Tkinter.py b/Lib/lib-tk/Tkinter.py
index 46b2781..4dcb256 100644
--- a/Lib/lib-tk/Tkinter.py
+++ b/Lib/lib-tk/Tkinter.py
@@ -1047,7 +1047,7 @@
         for k, v in cnf.items():
             if v is not None:
                 if k[-1] == '_': k = k[:-1]
-                if callable(v):
+                if hasattr(v, '__call__'):
                     v = self._register(v)
                 elif isinstance(v, (tuple, list)):
                     nv = []
@@ -3194,7 +3194,7 @@
         elif kw: cnf = kw
         options = ()
         for k, v in cnf.items():
-            if callable(v):
+            if hasattr(v, '__call__'):
                 v = self._register(v)
             options = options + ('-'+k, v)
         self.tk.call(('image', 'create', imgtype, name,) + options)
@@ -3217,7 +3217,7 @@
         for k, v in _cnfmerge(kw).items():
             if v is not None:
                 if k[-1] == '_': k = k[:-1]
-                if callable(v):
+                if hasattr(v, '__call__'):
                     v = self._register(v)
                 res = res + ('-'+k, v)
         self.tk.call((self.name, 'config') + res)