Issue #16809: Fixed some tkinter incompabilities with Tcl/Tk 8.6.
diff --git a/Lib/lib-tk/Tkinter.py b/Lib/lib-tk/Tkinter.py
index 6947bcc..529a3e4 100644
--- a/Lib/lib-tk/Tkinter.py
+++ b/Lib/lib-tk/Tkinter.py
@@ -1347,7 +1347,7 @@
                 value = words[i+1]
                 if not value:
                     value = None
-                elif '.' in value:
+                elif '.' in str(value):
                     value = getdouble(value)
                 else:
                     value = getint(value)
@@ -1880,7 +1880,7 @@
         for i in range(0, len(words), 2):
             key = words[i][1:]
             value = words[i+1]
-            if value[:1] == '.':
+            if str(value)[:1] == '.':
                 value = self._nametowidget(value)
             dict[key] = value
         return dict
@@ -1931,7 +1931,7 @@
         for i in range(0, len(words), 2):
             key = words[i][1:]
             value = words[i+1]
-            if value[:1] == '.':
+            if str(value)[:1] == '.':
                 value = self._nametowidget(value)
             dict[key] = value
         return dict
@@ -1980,7 +1980,7 @@
         for i in range(0, len(words), 2):
             key = words[i][1:]
             value = words[i+1]
-            if value[:1] == '.':
+            if str(value)[:1] == '.':
                 value = self._nametowidget(value)
             dict[key] = value
         return dict