Patch by Serhiy Storchaka.

Patch by Serhiy Storchaka.

Patch by Jakub Wilk.

Patch by Jakub Wilk.

Now that rmdir supports dir_fd, we also use it. Attackers can't even delete
empty directories anymore.

If messages were only added, a new file is no longer created and
renamed over the old file when flush() is called on an mbox, MMDF or
Babyl mailbox.

If messages were only added, a new file is no longer created and
renamed over the old file when flush() is called on an mbox, MMDF or
Babyl mailbox.

Also added several regression tests.

os.urandom() has now one unique implementation, posix_urandom() which
calls _PyOS_URandom(). _PyOS_URandom() uses RAND_pseudo_bytes() on VMS.

Use 'srcdir' from sysconfig instead of 'projectbase' to build a
path to the Tools directory.  'projectbase' is the path of the build
directory, not the source directory.

The gdb hooks for debugging CPython (within Tools/gdb) have
been enhanced to show information on more C frames relevant to CPython within
the "py-bt" and "py-bt-full" commands:
  * C frames that are waiting on the GIL
  * C frames that are garbage-collecting
  * C frames that are due to the invocation of a PyCFunction

(helps getting results in real-time when stdio is transmitted over a pipe or socket)

(helps getting results in real-time when stdio is transmitted over a pipe or socket)

correct inconsistent profiles for multi-threaded programs.

Patch by Stefan Mihaila.

Patch by Stefan Mihaila.

python executable

The __os_install_macro defines some post-processing activities during an rpm
build; one of the scripts it calls is brp-python-bytecompile, which can take
an argument: the python executable with which to byte-compile .py files in the
package payload.

In some older versions of rpm (e.g. in RHEL 6), this invocation doesn't pass
in an argument, and brp-python-bytecompile defaults to using /usr/bin/python,
which can lead to the .py files being byte-compiled for the wrong version of
python.  This has been fixed in later versions of rpm by passing in
%{__python} as an argument to brp-python-bytecompile.

Workaround this by detecting if __os_install_post has a 0-argument invocation
of brp-python-bytecompile, and if so generating an equivalent macro that has
the argument, and explicitly provide the new definition within the specfile.

3.3 whatsnew: Comment out the section about new POSIX *at functions etc.; has to be rewritten later.