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bpo-41147: [doc] contextlib.redirect_stdout() provides the new stream as context var (GH-21199)

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Peter Law 2021-05-26 15:13:09 +01:00 • committed by GitHub
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Doc/library/contextlib.rst
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@ -312,10 +312,11 @@ Functions and classes provided:
For example, the output of :func:`help` normally is sent to *sys.stdout*.
You can capture that output in a string by redirecting the output to an
:class:`io.StringIO` object::
:class:`io.StringIO` object. The replacement stream is returned from the
``__enter__`` method and so is available as the target of the
:keyword:`with` statement::
f = io.StringIO()
with redirect_stdout(f):
with redirect_stdout(io.StringIO()) as f:
help(pow)
s = f.getvalue()