Fix test

Author: zklaus

Lib/test/test_sys.py

@@ -741,7 +741,7 @@ def test_thread_info(self):
 
     def test_abi_info(self):
         info = sys.abi_info
-        self.assertEqual(len(info), 3)
+        self.assertEqual(len(info.__dict__), 3)
         pointer_bits = 64 if sys.maxsize > 2**32 else 32
         self.assertEqual(info.pointer_bits, pointer_bits)
         for flag in ["Py_GIL_DISABLED", "Py_DEBUG"]: