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whatsnew: compression libraries support 'x' mode.

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R David Murray 2014-02-27 20:05:42 -05:00
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@ -1609,6 +1609,10 @@ Other Improvements
set just the error handler, without changing the default encoding.
(Contributed by Serhiy Storchaka in :issue:`18818`.)
* The :mod:`bz2`, :mod:`lzma`, and :mod:`gzip` module ``open`` functions now
support ``x`` (exclusive creation) mode. (Contributed by Tim Heaney and
Vajrasky Kok in :issue:`19201`, :issue:`19222`, and :issue:`19223`.)
Significant Optimizations
-------------------------