From 655fc7012abdf50e7f827762fb08760fe54b0094 Mon Sep 17 00:00:00 2001
From: Georg Brandl <georg@python.org>
Date: Wed, 30 Apr 2008 21:08:42 +0000
Subject: [PATCH] #1748: use functools.wraps instead of rolling own metadata
 update.

---
 Lib/contextlib.py | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/Lib/contextlib.py b/Lib/contextlib.py
index dbd1c5744d..c9793af6ef 100644
--- a/Lib/contextlib.py
+++ b/Lib/contextlib.py
@@ -1,6 +1,7 @@
 """Utilities for with-statement contexts.  See PEP 343."""
 
 import sys
+from functools import wraps
 
 __all__ = ["contextmanager", "nested", "closing"]
 
@@ -77,14 +78,9 @@ def contextmanager(func):
             <cleanup>
 
     """
+    @wraps(func)
     def helper(*args, **kwds):
         return GeneratorContextManager(func(*args, **kwds))
-    try:
-        helper.__name__ = func.__name__
-        helper.__doc__ = func.__doc__
-        helper.__dict__ = func.__dict__
-    except:
-        pass
     return helper
 
 
-- 
2.40.0