[issue19403] Make contextlib.redirect_stdout reentrant

[Nick Coghlan]

Nick Coghlan added the comment:

I think this change also makes for nicer examples of reentrant (using the updated redirect_stdout) and reusable-but-not-reentrant (using ExitStack) behaviour in the docs.

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keywords: +patch
Added file: http://bugs.python.org/file32375/issue19403_reentrant_redirect_stdout.diff

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