remove nested from __all__

diff --git a/Lib/contextlib.py b/Lib/contextlib.py
index d14c07b325f837ea92f056c84b918f24c260aa39..e26d77ae2a2c4011f7c9ef1e71b4b1ddca26480e 100644 (file)
--- a/Lib/contextlib.py
+++ b/Lib/contextlib.py
@@ -4,7 +4,7 @@ import sys
 from functools import wraps
 from warnings import warn
 
-__all__ = ["contextmanager", "nested", "closing"]
+__all__ = ["contextmanager", "closing"]
 
 class GeneratorContextManager(object):
     """Helper for @contextmanager decorator."""