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Fix a bug in nested() - if one of the sub-context-managers swallows the

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exception, it should not be propagated up.  With unit tests.
This commit is contained in:
Guido van Rossum 2006-03-01 17:10:01 +00:00
parent 6db0e00d57
commit a9f068726f
2 changed files with 58 additions and 1 deletions
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5
Lib/contextlib.py
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@ -91,7 +91,6 @@ def nested(*contexts):
"""
exits = []
vars = []
exc = (None, None, None)
try:
try:
for context in contexts:
@ -103,6 +102,8 @@ def nested(*contexts):
yield vars
except:
exc = sys.exc_info()
else:
exc = (None, None, None)
finally:
while exits:
exit = exits.pop()
@ -110,6 +111,8 @@ def nested(*contexts):
exit(*exc)
except:
exc = sys.exc_info()
else:
exc = (None, None, None)
if exc != (None, None, None):
raise