Implement PEP 3115 -- new metaclass syntax and semantics.

The compiler package hasn't been updated yet; test_compiler.py fails.
Otherwise all tests seem to be passing now.  There are no occurrences
of __metaclass__ left in the standard library.
Docs have not been updated.

1 files changed, 2 insertions, 4 deletions

diff --git a/Lib/ctypes/_endian.py b/Lib/ctypes/_endian.py
index 6de0d47b2c..61ac33475b 100644
--- a/Lib/ctypes/_endian.py
+++ b/Lib/ctypes/_endian.py
@@ -42,18 +42,16 @@ if sys.byteorder == "little":
 
     LittleEndianStructure = Structure
 
-    class BigEndianStructure(Structure):
+    class BigEndianStructure(Structure, metaclass=_swapped_meta):
         """Structure with big endian byte order"""
-        __metaclass__ = _swapped_meta
         _swappedbytes_ = None
 
 elif sys.byteorder == "big":
     _OTHER_ENDIAN = "__ctype_le__"
 
     BigEndianStructure = Structure
-    class LittleEndianStructure(Structure):
+    class LittleEndianStructure(Structure, metaclass=_swapped_meta):
         """Structure with little endian byte order"""
-        __metaclass__ = _swapped_meta
         _swappedbytes_ = None
 
 else: