Issue #27138: Regenerate Python/importlib_external.h.

1 files changed, 8 insertions, 2 deletions

diff --git a/Lib/enum.py b/Lib/enum.py
index b8787d19b8..c3a0a8b4a9 100644
--- a/Lib/enum.py
+++ b/Lib/enum.py
@@ -1,8 +1,14 @@
 import sys
-from collections import OrderedDict
 from types import MappingProxyType, DynamicClassAttribute
 
-__all__ = ['Enum', 'IntEnum', 'unique']
+# try _collections first to reduce startup cost
+try:
+    from _collections import OrderedDict
+except ImportError:
+    from collections import OrderedDict
+
+
+__all__ = ['EnumMeta', 'Enum', 'IntEnum', 'unique']
 
 
 def _is_descriptor(obj):