2013/9/9 Larry Hastings <la...@hastings.org>:
> Python 3.4 includes a range of improvements of the 3.x series, including
> hundreds of small improvements and bug fixes.  Major new features and
> changes in the 3.4 release series so far include:
>
> * PEP 446, changing file descriptors to not be inherited by default
>            in subprocesses

The title of the PEP is "Make newly created file descriptors
non-inheritable". It has an impact on all functions creating files and
sockets not only the subprocess module.

You can also add a link to the nice What’s New In Python 3.4 document:
http://docs.python.org/dev/whatsnew/3.4.html

Victor
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