[pypy-commit] pypy pypy3-release-2.4.x: merge py3k

[pjenvey]

Author: Philip Jenvey <pjenvey at underboss.org>
Branch: pypy3-release-2.4.x
Changeset: r73934:3abbe327bcf1
Date: 2014-10-13 15:59 -0700
http://bitbucket.org/pypy/pypy/changeset/3abbe327bcf1/

Log:	merge py3k

diff --git a/pypy/doc/release-pypy3-2.4.0.rst b/pypy/doc/release-pypy3-2.4.0.rst
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--- /dev/null
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+=================================================
+PyPy3 2.4 - Snow White
+=================================================
+
+We're pleased to announce PyPy3 2.4, which contains significant performance
+enhancements and bug fixes.
+
+You can download the PyPy3 2.4.0 release here:
+
+    http://pypy.org/download.html
+
+We would like to thank our donors for the continued support of the PyPy
+project, and for those who donate to our three sub-projects.
+We've shown quite a bit of progress, but we're slowly running out of funds.
+Please consider donating more, or even better convince your employer to donate,
+so we can finish those projects! The three sub-projects are:
+
+* `Py3k`_ (supporting Python 3.x): This is a Python 3.2.5 compatible
+   version we call PyPy3 2.4, and we are working toward a Python 3.3
+   compatible version
+
+* `STM`_ (software transactional memory): We have released a first working version,
+  and continue to try out new promising paths of achieving a fast multithreaded Python
+
+* `NumPy`_ which requires installation of our fork of upstream numpy,
+  available `on bitbucket`_
+
+.. _`Py3k`: http://pypy.org/py3donate.html
+.. _`STM`: http://pypy.org/tmdonate2.html
+.. _`NumPy`: http://pypy.org/numpydonate.html
+.. _`on bitbucket`: https://www.bitbucket.org/pypy/numpy
+
+What is PyPy?
+=============
+
+PyPy is a very compliant Python interpreter, almost a drop-in replacement for
+CPython 2.7 or 3.2.5. It's fast (`pypy 2.4 and cpython 2.7.x`_ performance
+comparison) due to its integrated tracing JIT compiler.
+
+This release supports **x86** machines on most common operating systems
+(Linux 32/64, Mac OS X 64, Windows, and OpenBSD),
+as well as newer **ARM** hardware (ARMv6 or ARMv7, with VFPv3) running Linux.
+
+While we support 32 bit python on Windows, work on the native Windows 64
+bit python is still stalling, we would welcome a volunteer
+to `handle that`_.
+
+.. _`pypy 2.4 and cpython 2.7.x`: http://speed.pypy.org
+.. _`handle that`: http://doc.pypy.org/en/latest/windows.html#what-is-missing-for-a-full-64-bit-translation
+
+PyPy3 Highlights
+================
+
+Issues reported with our previous release were fixed after reports from users on
+our new issue tracker at https://bitbucket.org/pypy/pypy/issues or on IRC at
+#pypy. Here is a summary of the user-facing PyPy3 specific changes:
+
+* Better Windows compatibility, e.g. the nt module functions _getfinalpathname
+  & _getfileinformation are now supported (the former is required for the
+  popular pathlib library for example)
+
+* Various fsencode PEP 383 related fixes to the posix module (readlink, uname,
+  ttyname and ctermid) and improved locale handling
+
+* Switched default binary name os POSIX distributions to 'pypy3' (which
+  symlinks to to 'pypy3.2')
+
+* Fixed a couple different crashes related to parsing Python 3 source code
+
+Further Highlights (shared w/ PyPy2)
+====================================
+
+Benchmarks improved after internal enhancements in string and
+bytearray handling, and a major rewrite of the GIL handling. This means
+that external calls are now a lot faster, especially the CFFI ones. It also
+means better performance in a lot of corner cases with handling strings or
+bytearrays. The main bugfix is handling of many socket objects in your
+program which in the long run used to "leak" memory.
+
+We fixed a memory leak in IO in the sandbox_ code
+
+We welcomed more than 12 new contributors, and conducted two Google
+Summer of Code projects, as well as other student projects not
+directly related to Summer of Code.
+
+* Reduced internal copying of bytearray operations
+
+* Tweak the internal structure of StringBuilder to speed up large string
+  handling, which becomes advantageous on large programs at the cost of slightly
+  slower small *benchmark* type programs.
+
+* Boost performance of thread-local variables in both unjitted and jitted code,
+  this mostly affects errno handling on linux, which makes external calls
+  faster.
+
+* Move to a mixed polling and mutex GIL model that make mutlithreaded jitted
+  code run *much* faster
+
+* Optimize errno handling in linux (x86 and x86-64 only)
+
+* Remove ctypes pythonapi and ctypes.PyDLL, which never worked on PyPy
+
+* Classes in the ast module are now distinct from structures used by
+  the compiler, which simplifies and speeds up translation of our
+  source code to the PyPy binary interpreter
+
+* Win32 now links statically to zlib, expat, bzip, and openssl-1.0.1i.
+  No more missing DLLs
+
+* Many issues were resolved_ since the 2.3.1 release in June
+
+.. _`whats-new`: http://doc.pypy.org/en/latest/whatsnew-2.4.0.html
+.. _resolved: https://bitbucket.org/pypy/pypy/issues?status=resolved
+.. _sandbox: http://doc.pypy.org/en/latest/sandbox.html
+
+We have further improvements on the way: rpython file handling,
+numpy linalg compatibility, as well
+as improved GC and many smaller improvements.
+
+Please try it out and let us know what you think. We especially welcome
+success stories, we know you are using PyPy, please tell us about it!
+
+Cheers
+
+The PyPy Team
+
diff --git a/pypy/doc/whatsnew-pypy3-2.4.0.rst b/pypy/doc/whatsnew-pypy3-2.4.0.rst
new file mode 100644
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+=========================
+What's new in PyPy3 2.4.0
+=========================
+
+.. this is a revision shortly after pypy3-release-2.4.x
+.. startrev: 12b940544622