Update NEWS, docs, and patchlevel for 3.7.0b1

Include/patchlevel.h

@@ -19,11 +19,11 @@
 #define PY_MAJOR_VERSION        3
 #define PY_MINOR_VERSION        7
 #define PY_MICRO_VERSION        0
-#define PY_RELEASE_LEVEL        PY_RELEASE_LEVEL_ALPHA
-#define PY_RELEASE_SERIAL       4
+#define PY_RELEASE_LEVEL        PY_RELEASE_LEVEL_BETA
+#define PY_RELEASE_SERIAL       1
 
 /* Version as a string */
-#define PY_VERSION              "3.7.0a4+"
+#define PY_VERSION              "3.7.0b1"
 /*--end constants--*/
 
 /* Version as a single 4-byte hex number, e.g. 0x010502B2 == 1.5.2b2.

Misc/NEWS.d/next/Build/2018-01-16-08-32-49.bpo-29708.YCaHEx.rst

-If the :envvar:`SOURCE_DATE_EPOCH` environment variable is set,
-:mod:`py_compile` will always create hash-based ``.pyc`` files.

Misc/NEWS.d/next/Build/2018-01-18-11-10-52.bpo-32593.XIrf3v.rst

-Drop support of FreeBSD 9 and older.

Misc/NEWS.d/next/Build/2018-01-19-14-50-19.bpo-32598.hP7bMV.rst

-Use autoconf to detect OpenSSL libs, headers and supported features. The
-ax_check_openssl M4 macro uses pkg-config to locate OpenSSL and falls back
-to manual search.

Misc/NEWS.d/next/Build/2018-01-23-15-33-40.bpo-32635.qHwIZy.rst

-Fix segfault of the crypt module when libxcrypt is provided instead of
-libcrypt at the system.

Misc/NEWS.d/next/C API/2017-12-28-15-22-05.bpo-10381.a1E6aF.rst

-Add C API access to the ``datetime.timezone`` constructor and
-``datetime.timzone.UTC`` singleton.

Misc/NEWS.d/next/C API/2018-01-26-17-29-29.bpo-32681.N1ruWa.rst

-Fix uninitialized variable 'res' in the C implementation of os.dup2. Patch
-by Stéphane Wirtel

Misc/NEWS.d/next/Core and Builtins/2017-08-07-16-46-56.bpo-31113.XgNEFg.rst

-Get rid of recursion in the compiler for normal control flow.

Misc/NEWS.d/next/Core and Builtins/2017-08-10-17-32-48.bpo-31179.XcgLYI.rst

-Make dict.copy() up to 5.5 times faster.

Misc/NEWS.d/next/Core and Builtins/2017-11-02-00-34-42.bpo-31356.54Lb8U.rst

-Add a new contextmanager to the gc module that temporarily disables the GC
-and restores the previous state. The implementation is done in C to assure
-atomicity and speed.

Misc/NEWS.d/next/Core and Builtins/2017-12-03-22-29-13.bpo-32028.KC2w4Q.rst

-Leading whitespace is now correctly ignored when generating suggestions
-for converting Py2 print statements to Py3 builtin print function calls.
-Patch by Sanyam Khurana.

Misc/NEWS.d/next/Core and Builtins/2017-12-04-18-34-11.bpo-20891.C2TsfR.rst

-Py_Initialize() now creates the GIL. The GIL is no longer created "on demand"
-to fix a race condition when PyGILState_Ensure() is called in a non-Python
-thread.

Misc/NEWS.d/next/Core and Builtins/2017-12-13-16-46-23.bpo-18533.Dlk8d7.rst

-``repr()`` on a dict containing its own ``values()`` or ``items()`` no
-longer raises ``RecursionError``; OrderedDict similarly.  Instead, use
-``...``, as for other recursive structures.  Patch by Ben North.

Misc/NEWS.d/next/Core and Builtins/2017-12-28-00-20-42.bpo-32436.H159Jv.rst

-Implement PEP 567

Misc/NEWS.d/next/Core and Builtins/2018-01-01-21-59-31.bpo-24340.hmKBvg.rst

-Fixed estimation of the code stack size.

Misc/NEWS.d/next/Core and Builtins/2018-01-06-01-14-53.bpo-20104.9DkKb8.rst

-Expose posix_spawn as a low level API in the os module.

Misc/NEWS.d/next/Core and Builtins/2018-01-14-12-42-17.bpo-32550.k0EK-4.rst

-Remove the STORE_ANNOTATION bytecode.

Misc/NEWS.d/next/Core and Builtins/2018-01-14-20-32-47.bpo-26163.xv9Iuv.rst

-Improved frozenset() hash to create more distinct hash values when faced
-with datasets containing many similar values.

Misc/NEWS.d/next/Core and Builtins/2018-01-16-18-51-58.bpo-32544.ga-cFE.rst

-``hasattr(obj, name)`` and ``getattr(obj, name, default)`` are about 4 times
-faster than before when ``name`` is not found and ``obj`` doesn't override
-``__getattr__`` or ``__getattribute__``.

Misc/NEWS.d/next/Core and Builtins/2018-01-19-01-54-22.bpo-31368.kzKqUR.rst

-Expose preadv and pwritev system calls in the os module. Patch by Pablo Galindo

Misc/NEWS.d/next/Core and Builtins/2018-01-20-00-50-33.bpo-32591.666kl6.rst

-Added built-in support for tracking the origin of coroutine objects; see
-sys.set_coroutine_origin_tracking_depth and CoroutineType.cr_origin. This
-replaces the asyncio debug mode's use of coroutine wrapping for native
-coroutine objects.

Misc/NEWS.d/next/Core and Builtins/2018-01-25-17-03-46.bpo-32670.YsqJUC.rst

-Enforce PEP 479 for all code.
-
-This means that manually raising a StopIteration exception from a generator
-is prohibited for all code, regardless of whether 'from __future__ import
-generator_stop' was used or not.

Misc/NEWS.d/next/Core and Builtins/2018-01-26-20-11-09.bpo-32677.xTGfCq.rst

-Add ``.isascii()`` method to ``str``, ``bytes`` and ``bytearray``.
-It can be used to test that string contains only ASCII characters.

Misc/NEWS.d/next/Core and Builtins/2018-01-28-09-26-07.bpo-32690.8i9g5P.rst

-The locals() dictionary now displays in the lexical order that variables
-were defined.  Previously, the order was reversed.

Misc/NEWS.d/next/Core and Builtins/2018-01-28-09-52-12.bpo-32697.RHlu6k.rst

-Python now explicitly preserves the definition order of keyword-only
-parameters.  It's always preserved their order, but this behavior was never
-guaranteed before; this behavior is now guaranteed and tested.

Misc/NEWS.d/next/Core and Builtins/2018-01-28-12-25-06.bpo-32685.nGctze.rst

-Improve suggestion when the Python 2 form of print statement is either
-present on the same line as the header of a compound statement or else
-terminated by a semi-colon instead of a newline. Patch by Nitish Chandra.

Misc/NEWS.d/next/Core and Builtins/2018-01-28-15-09-33.bpo-28685.cHThLM.rst

-Optimize list.sort() and sorted() by using type specialized comparisons when
-possible.

Misc/NEWS.d/next/Core and Builtins/2018-01-28-23-01-39.bpo-32650.Bbi7ek.rst

-Pdb and other debuggers dependent on bdb.py will correctly step over (next
-command) native coroutines. Patch by Pablo Galindo.

Misc/NEWS.d/next/Core and Builtins/2018-01-29-01-15-17.bpo-32703.mwrF4-.rst

-Fix coroutine's ResourceWarning when there's an active error set when it's
-being finalized.

Misc/NEWS.d/next/Documentation/2018-01-22-21-13-46.bpo-17799.rdZ-Vk.rst

-Explain real behaviour of sys.settrace and sys.setprofile and their C-API counterparts
-regarding which type of events are received in each function. Patch by Pablo Galindo Salgado.

Misc/NEWS.d/next/Documentation/2018-01-27-23-36-31.bpo-32649.o7qOjF.rst

-Complete the C API documentation, profiling and tracing part with the newly
-added per-opcode events.

Misc/NEWS.d/next/Documentation/2018-01-30-09-00-19.bpo-32724.qPIaM-.rst

-Add references to some commands in the documentation of Pdb. Patch by
-Stéphane Wirtel

Misc/NEWS.d/next/Library/2017-09-07-19-12-47.bpo-14976.dx0Zxb.rst

-Add a queue.SimpleQueue class, an unbounded FIFO queue with a reentrant C
-implementation of put().

Misc/NEWS.d/next/Library/2017-09-08-14-05-33.bpo-31399.FtBrrt.rst

-The ssl module now uses OpenSSL's X509_VERIFY_PARAM_set1_host() and
-X509_VERIFY_PARAM_set1_ip() API to verify hostname and IP addresses. Subject
-common name fallback can be disabled with
-SSLContext.hostname_checks_common_name.

Misc/NEWS.d/next/Library/2017-10-23-22-55-51.bpo-31853.h5fjrP.rst

-Use super().method instead of socket.method in SSLSocket.  They were
-there most likely for legacy reasons.

Misc/NEWS.d/next/Library/2017-10-30-15-55-32.bpo-31900.-S9xc4.rst

-The :func:`locale.localeconv` function now sets temporarily the ``LC_CTYPE``
-locale to the ``LC_NUMERIC`` locale to decode ``decimal_point`` and
-``thousands_sep`` byte strings if they are non-ASCII or longer than 1 byte, and
-the ``LC_NUMERIC`` locale is different than the ``LC_CTYPE`` locale.  This
-temporary change affects other threads.
-
-Same change for the :meth:`str.format` method when formatting a number
-(:class:`int`, :class:`float`, :class:`float` and subclasses) with the ``n``
-type (ex: ``'{:n}'.format(1234)``).

Misc/NEWS.d/next/Library/2017-11-08-03-38-20.bpo-31961.x5Sv0R.rst

-The *args* argument of subprocess.Popen can now be a
-:term:`path-like object`. If *args* is given as a
-sequence, it's first element can now be a
-:term:`path-like object` as well.

Misc/NEWS.d/next/Library/2017-12-11-15-14-55.bpo-29302.Nczj9l.rst

-Add contextlib.AsyncExitStack. Patch by Alexander Mohr and Ilya Kulakov.

Misc/NEWS.d/next/Library/2017-12-14-01-36-25.bpo-32320.jwOZlr.rst

-collections.namedtuple() now supports default values.

Misc/NEWS.d/next/Library/2017-12-15-15-34-12.bpo-32248.zmO8G2.rst

-Add :mod:`importlib.resources` and :class:`importlib.abc.ResourceReader` as
-the unified API for reading resources contained within packages.  Loaders
-wishing to support resource reading must implement the
-:meth:`get_resource_reader()` method.  File-based and zipimport-based loaders
-both implement these APIs.  :class:`importlib.abc.ResourceLoader` is
-deprecated in favor of these new APIs.

Misc/NEWS.d/next/Library/2017-12-19-09-23-46.bpo-32373.8qAkoW.rst

-Add socket.getblocking() method.

Misc/NEWS.d/next/Library/2017-12-21-22-00-11.bpo-22908.cVm89I.rst

-Added seek and tell to the ZipExtFile class. This only works if the file
-object used to open the zipfile is seekable.

Misc/NEWS.d/next/Library/2017-12-22-16-05-01.bpo-32410.8JzhvH.rst

-Implement ``loop.sock_sendfile`` for asyncio event loop.

Misc/NEWS.d/next/Library/2017-12-22-16-47-41.bpo-32228.waPx3q.rst

-Ensure that ``truncate()`` preserves the file position (as reported by ``tell()``) after writes longer than the buffer size.

Misc/NEWS.d/next/Library/2017-12-23-14-51-46.bpo-32403.CVFapH.rst

-Improved speed of :class:`datetime.date` and :class:`datetime.datetime`
-alternate constructors.

Misc/NEWS.d/next/Library/2017-12-23-14-54-05.bpo-32404.yJqtlJ.rst

-Fix bug where :meth:`datetime.datetime.fromtimestamp` did not call __new__
-in :class:`datetime.datetime` subclasses.

Misc/NEWS.d/next/Library/2017-12-24-20-01-09.bpo-28134.HJ8Beb.rst

-Sockets now auto-detect family, type and protocol from file descriptor by
-default.

Misc/NEWS.d/next/Library/2017-12-27-20-09-27.bpo-32433.vmxsVI.rst

-The hmac module now has hmac.digest(), which provides an optimized HMAC
-digest.

Misc/NEWS.d/next/Library/2017-12-27-20-15-51.bpo-25942.Giyr8v.rst

-The subprocess module is now more graceful when handling a Ctrl-C
-KeyboardInterrupt during subprocess.call, subprocess.run, or a Popen context
-manager.  It now waits a short amount of time for the child (presumed to
-have also gotten the SIGINT) to exit, before continuing the
-KeyboardInterrupt exception handling.  This still includes a SIGKILL in the
-call() and run() APIs, but at least the child had a chance first.

Misc/NEWS.d/next/Library/2017-12-30-10-38-05.bpo-32454.wsZnl-.rst

-Add close(fd) function to the socket module.

Misc/NEWS.d/next/Library/2018-01-04-14-45-33.bpo-29237.zenYA6.rst

-Create enum for pstats sorting options

Misc/NEWS.d/next/Library/2018-01-07-09-22-26.bpo-32503.ViMxpD.rst

-Pickling with protocol 4 no longer creates too small frames.

Misc/NEWS.d/next/Library/2018-01-08-15-53-37.bpo-32493.vTXxGN.rst

-UUID module fixes build for FreeBSD/OpenBSD

Misc/NEWS.d/next/Library/2018-01-08-18-02-33.bpo-32521.Kh-KoN.rst

-glibc has removed Sun RPC. Use replacement libtirpc headers and library in
-nis module.

Misc/NEWS.d/next/Library/2018-01-10-18-04-21.bpo-32102.9-CZgD.rst

-New argument ``capture_output`` for subprocess.run

Misc/NEWS.d/next/Library/2018-01-10-20-37-59.bpo-32473.mP_yJG.rst

-Improve ABCMeta._dump_registry() output readability

Misc/NEWS.d/next/Library/2018-01-11-00-33-42.bpo-32467.YVEOv6.rst

-collections.abc.ValuesView now inherits from collections.abc.Collection.

Misc/NEWS.d/next/Library/2018-01-15-12-53-13.bpo-32521.IxX4Ba.rst

-The nis module is now compatible with new libnsl and headers location.

Misc/NEWS.d/next/Library/2018-01-16-20-37-28.bpo-32574.ru8eZ9.rst

-Fix memory leak in asyncio.Queue, when the queue has limited size and it is
-full, the cancelation of queue.put() can cause a memory leak. Patch by: José
-Melero.

Misc/NEWS.d/next/Library/2018-01-17-13-04-16.bpo-32576.iDL09t.rst

-Use queue.SimpleQueue() in places where it can be invoked from a weakref
-callback.

Misc/NEWS.d/next/Library/2018-01-18-13-47-40.bpo-31801.3UGH1h.rst

-Add ``_ignore_`` to ``Enum`` so temporary variables can be used during class
-construction without being turned into members.

Misc/NEWS.d/next/Library/2018-01-19-19-57-45.bpo-32596.4aVIie.rst

-``concurrent.futures`` imports ``ThreadPoolExecutor`` and
-``ProcessPoolExecutor`` lazily (using :pep:`562`).
-It makes ``import asyncio`` about 15% faster because asyncio
-uses only ``ThreadPoolExecutor`` by default.

Misc/NEWS.d/next/Library/2018-01-20-17-15-34.bpo-32502.OXJfn7.rst

-uuid.uuid1 no longer raises an exception if a 64-bit hardware address is
-encountered.

Misc/NEWS.d/next/Library/2018-01-21-16-33-53.bpo-32304.TItrNv.rst

-distutils' upload command no longer corrupts tar files ending with a CR byte,
-and no longer tries to convert CR to CRLF in any of the upload text fields.

Misc/NEWS.d/next/Library/2018-01-22-18-18-44.bpo-32622.A1D6FP.rst

-Add :meth:`asyncio.AbstractEventLoop.sendfile` method.

Misc/NEWS.d/next/Library/2018-01-23-01-57-36.bpo-32630.6KRHBs.rst

-Refactor decimal module to use contextvars to store decimal context.

Misc/NEWS.d/next/Library/2018-01-24-00-32-58.bpo-32643.VWipsW.rst

-Make Task._step, Task._wakeup and Future._schedule_callbacks methods
-private.

Misc/NEWS.d/next/Library/2018-01-24-15-20-12.bpo-32391.0f8MY9.rst

-Implement :meth:`asyncio.StreamWriter.wait_closed` and :meth:`asyncio.StreamWriter.is_closing` methods

Misc/NEWS.d/next/Library/2018-01-25-01-45-30.bpo-32662.oabhd8.rst

-Implement Server.start_serving(), Server.serve_forever(), and
-Server.is_serving() methods.  Add 'start_serving' keyword parameter to
-loop.create_server() and loop.create_unix_server().

Misc/NEWS.d/next/Library/2018-01-25-03-46-00.bpo-32659.VHYoON.rst

-Under Solaris and derivatives, :class:`os.stat_result` provides a st_fstype attribute.

Misc/NEWS.d/next/Library/2018-01-25-21-04-11.bpo-27931.e4r52t.rst

-Fix email address header parsing error when the username is an empty quoted string. Patch by Xiang Zhang.

Misc/NEWS.d/next/Library/2018-01-26-01-26-00.bpo-32660.tVJIWV.rst

-:mod:`termios` makes available ``FIONREAD``, ``FIONCLEX``, ``FIOCLEX``,
-``FIOASYNC`` and ``FIONBIO`` also under Solaris/derivatives.

Misc/NEWS.d/next/Library/2018-01-27-11-20-16.bpo-32513.ak-iD2.rst

-In dataclasses, allow easier overriding of dunder methods without specifying
-decorator parameters.

Misc/NEWS.d/next/Library/2018-01-28-01-21-47.bpo-32251.fOA5qB.rst

-Implement asyncio.BufferedProtocol (provisional API).

Misc/NEWS.d/next/Library/2018-01-28-07-55-10.bpo-21417.JFnV99.rst

-Added support for setting the compression level for zipfile.ZipFile.

Misc/NEWS.d/next/Library/2018-01-28-14-10-51.bpo-30306.TmKMXi.rst

-contextlib.contextmanager now releases the arguments passed to the
-underlying generator as soon as the context manager is entered. Previously
-it would keep them alive for as long as the context manager was alive, even
-when not being used as a function decorator. Patch by Martin Teichmann.

Misc/NEWS.d/next/Library/2018-01-28-22-40-05.bpo-31429.qNt8rQ.rst

-The default cipher suite selection of the ssl module now uses a blacklist
-approach rather than a hard-coded whitelist. Python no longer re-enables
-ciphers that have been blocked by OpenSSL security update. Default cipher
-suite selection can be configured on compile time.

Misc/NEWS.d/next/Library/2018-01-28-23-48-45.bpo-25988.I9uBct.rst

-Deprecate exposing the contents of collections.abc in the regular
-collections module.

Misc/NEWS.d/next/Tests/2018-01-14-11-40-22.bpo-32549.fLwbVA.rst

-On Travis CI, Python now Compiles and uses a local copy of OpenSSL 1.1.0g for testing.

Misc/NEWS.d/next/Tests/2018-01-19-20-47-11.bpo-32602.dz41pq.rst

-Add test certs and test for ECDSA cert and EC/RSA dual mode.

Misc/NEWS.d/next/Tests/2018-01-26-21-29-09.bpo-32604.7iazNx.rst

-Add a new "_xxsubinterpreters" extension module that exposes the existing
-subinterpreter C-API and a new cross-interpreter data sharing mechanism. The
-module is primarily intended for more thorough testing of the existing
-subinterpreter support.

Misc/NEWS.d/next/Tests/2018-01-28-21-19-13.bpo-28414.a6Onzt.rst

-Add test cases for IDNA 2003 and 2008 host names. IDNA 2003
-internationalized host names are working since bpo-31399 has landed. IDNA
-2008 are still broken.

Misc/NEWS.d/next/Tests/2018-01-29-21-30-44.bpo-32721.2Bebm1.rst

-Fix test_hashlib to not fail if the _md5 module is not built.

Misc/NEWS.d/next/Windows/2018-01-07-12-32-49.bpo-32507.vB4gxk.rst

-Use app-local UCRT install rather than the proper update for old versions of
-Windows.

Misc/NEWS.d/next/Windows/2018-01-07-12-33-21.bpo-29911.ewSJKb.rst

-Ensure separate Modify and Uninstall buttons are displayed.

Misc/NEWS.d/next/Windows/2018-01-18-14-56-45.bpo-32588.vHww6F.rst

-Create standalone _distutils_findvs module and add missing _queue module to
-installer.

Misc/NEWS.d/next/macOS/2018-01-30-04-40-12.bpo-28440.W_BUWU.rst

-No longer add /Library/Python/3.x/site-packages to sys.path for macOS
-framework builds to avoid future conflicts.

Misc/NEWS.d/next/macOS/2018-01-30-07-13-10.bpo-32726.tcARLK.rst

-Provide an additional, more modern macOS installer variant that supports
-macOS 10.9+ systems in 64-bit mode only.  Upgrade the supplied third-party
-libraries to OpenSSL 1.1.0g and to SQLite 3.22.0.  The 10.9+ installer now
-links with and supplies its own copy of Tcl/Tk 8.6.

README.rst

-This is Python version 3.7.0 alpha 4+
-=====================================
+This is Python version 3.7.0 beta 1
+===================================
 
 .. image:: https://travis-ci.org/python/cpython.svg?branch=master
    :alt: CPython build status on Travis CI