Revert the change done in svn revision 47206:

Add a new function uses_seh() to the _ctypes extension module.  This
will return True if Windows Structured Exception handling (SEH) is
used when calling functions, False otherwise.

1 files changed, 9 insertions, 5 deletions

diff --git a/Lib/ctypes/test/test_win32.py b/Lib/ctypes/test/test_win32.py
index eb016ff..8247d37 100644
--- a/Lib/ctypes/test/test_win32.py
+++ b/Lib/ctypes/test/test_win32.py
@@ -30,11 +30,15 @@ if sys.platform == "win32":
             # or wrong calling convention
             self.assertRaises(ValueError, IsWindow, None)
 
-        import _ctypes
-        if _ctypes.uses_seh():
-            def test_SEH(self):
-                # Call functions with invalid arguments, and make sure that access violations
-                # are trapped and raise an exception.
+        def test_SEH(self):
+            # Call functions with invalid arguments, and make sure that access violations
+            # are trapped and raise an exception.
+            #
+            # Normally, in a debug build of the _ctypes extension
+            # module, exceptions are not trapped, so we can only run
+            # this test in a release build.
+            import sys
+            if not hasattr(sys, "getobjects"):
                 self.assertRaises(WindowsError, windll.kernel32.GetModuleHandleA, 32)
 
 class Structures(unittest.TestCase):