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#1096310: document usage of sys.__std*__ a bit better.

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Georg Brandl 2009-03-31 19:10:35 +00:00
parent 5206086e0d
commit b48adecbd6
1 changed files with 8 additions and 3 deletions
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11
Doc/library/sys.rst
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@ -871,9 +871,14 @@ always available.
__stderr__
These objects contain the original values of ``stdin``, ``stderr`` and
``stdout`` at the start of the program. They are used during finalization, and
could be useful to restore the actual files to known working file objects in
case they have been overwritten with a broken object.
``stdout`` at the start of the program. They are used during finalization,
and could be useful to print to the actual standard stream no matter if the
``sys.std*`` object has been redirected.
It can also be used to restore the actual files to known working file objects
in case they have been overwritten with a broken object. However, the
preferred way to do this is to explicitly save the previous stream before
replacing it, and restore the saved object.
.. data:: tracebacklimit