diff --git a/wxPython/src/mac/utils.py b/wxPython/src/mac/utils.py
index 98fb73308a..5dc18f722d 100644
--- a/wxPython/src/mac/utils.py
+++ b/wxPython/src/mac/utils.py
@@ -573,7 +573,7 @@ class wxDateTimePtr :
             return self.__sub__DT(other)
         if isinstance(other, wxTimeSpanPtr):
             return self.__sub__TS(other)
-        if isinstnace(other, wxDateSpanPtr):
+        if isinstance(other, wxDateSpanPtr):
             return self.__sub__DS(other)
         raise TypeError, 'Invalid r.h.s. type for __sub__'
 
diff --git a/wxPython/src/mac/wx.py b/wxPython/src/mac/wx.py
index 7c619bf625..7d9efd53a9 100644
--- a/wxPython/src/mac/wx.py
+++ b/wxPython/src/mac/wx.py
@@ -1595,23 +1595,9 @@ except NameError:
     True = 1==1
     False = 1==0
 
-class _DeprecatedNonBool:
-    def __init__(self, val, txt):
-        self.__val = val
-        self.__txt = txt
-    def __int__(self):
-        import warnings
-        warnings.warn("Use Python's %s instead" % self.__txt, DeprecationWarning, 3)
-        return self.__val
-    def __nonzero__(self):
-        return self.__int__()
-    def __repr__(self):
-        if self.__val: text = "True"
-        else: text = "False"
-        return "_DeprecatedNonBool: %s" % text
-
-TRUE  = true  = _DeprecatedNonBool(True, 'True')
-FALSE = false = _DeprecatedNonBool(False, 'False')
+# Backwards compaatible
+TRUE  = true  = True
+FALSE = false = False
 
 
 #----------------------------------------------------------------------