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Wed Jan 30 13:00:52 CET 2013 · https://mail.python.org/pipermail/python-dev/2013-January/123766.html

> Disable inheritance by default
> (...)
> * It violates the principle of least surprise.  Developers using the
>   os module may expect that Python respects the POSIX standard and so
>   that close-on-exec flag is not set by default.

Oh, I just saw that Perl is "violating POSIX" since Perl 1:
close-on-exec flag in set on new created file descriptors if their
number is greater than $SYSTEM_FD_MAX (which is usually 2).

So Python would not be the only language providing a convinient
default behaviour ;-) (And Ruby 2 will also set close-on-exec by
default.)

Victor

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Showing content from https://mail.python.org/pipermail/python-dev/2013-January/123766.html below:

[Python-Dev] PEP 433: second try