[Python-checkins] cpython: whatsnew: reword the contextlib.redirect_stdout entry for increased clarity.
r.david.murray
python-checkins at python.org
Fri Feb 28 00:12:09 CET 2014
http://hg.python.org/cpython/rev/02980840a341
changeset: 89412:02980840a341
user: R David Murray <rdmurray at bitdance.com>
date: Wed Feb 26 12:46:19 2014 -0500
summary:
whatsnew: reword the contextlib.redirect_stdout entry for increased clarity.
files:
Doc/whatsnew/3.4.rst | 14 +++++++++-----
1 files changed, 9 insertions(+), 5 deletions(-)
diff --git a/Doc/whatsnew/3.4.rst b/Doc/whatsnew/3.4.rst
--- a/Doc/whatsnew/3.4.rst
+++ b/Doc/whatsnew/3.4.rst
@@ -580,11 +580,15 @@
Zero Piraeus in :issue:`19266`)
The new :func:`contextlib.redirect_stdout` context manager makes it easier
-for utility scripts to handle inflexible APIs that don't provide any
-options to retrieve their output as a string or direct it to somewhere
-other than :data:`sys.stdout`. In conjunction with :class:`io.StringIO`,
-this context manager is also useful for checking expected output from
-command line utilities. (Contribute by Raymond Hettinger in :issue:`15805`)
+for utility scripts to handle inflexible APIs that write their output to
+:data:`sys.stdout` and don't provide any options to redirect it. Using the
+context manager, the :data:`sys.stdout` output can be redirected to any
+other stream or, in conjunction with :class:`io.StringIO`, to a string.
+The latter can be especially useful, for example, to capture output
+from a function that was written to implement a command line interface.
+It is recommended only for utility scripts because it affects the
+global state of :data:`sys.stdout`. (Contributed by Raymond Hettinger
+in :issue:`15805`)
The :mod:`contextlib` documentation has also been updated to include a
:ref:`discussion <single-use-reusable-and-reentrant-cms>` of the
--
Repository URL: http://hg.python.org/cpython
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