Merge tag 'v3.8.0b2' into 3.8

Python 3.8.0b2

Include/patchlevel.h

@@ -20,10 +20,10 @@
 #define PY_MINOR_VERSION        8
 #define PY_MICRO_VERSION        0
 #define PY_RELEASE_LEVEL        PY_RELEASE_LEVEL_BETA
-#define PY_RELEASE_SERIAL       1
+#define PY_RELEASE_SERIAL       2
 
 /* Version as a string */
-#define PY_VERSION              "3.8.0b1+"
+#define PY_VERSION              "3.8.0b2"
 /*--end constants--*/
 
 /* Version as a single 4-byte hex number, e.g. 0x010502B2 == 1.5.2b2.

Lib/pydoc_data/topics.py

@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-# Autogenerated by Sphinx on Tue Jun  4 19:40:37 2019
+# Autogenerated by Sphinx on Thu Jul  4 12:44:09 2019
 topics = {'assert': 'The "assert" statement\n'
            '**********************\n'
            '\n'
@@ -3758,6 +3758,8 @@ topics = {'assert': 'The "assert" statement\n'
              '\n'
              "      import pdb; pdb.Pdb(skip=['django.*']).set_trace()\n"
              '\n'
+             '   Raises an auditing event "pdb.Pdb" with no arguments.\n'
+             '\n'
              '   New in version 3.1: The *skip* argument.\n'
              '\n'
              '   New in version 3.2: The *nosigint* argument.  Previously, a '
@@ -4289,7 +4291,14 @@ topics = {'assert': 'The "assert" statement\n'
          'section The standard type hierarchy.  (To summarize, the key type\n'
          'should be *hashable*, which excludes all mutable objects.)  Clashes\n'
          'between duplicate keys are not detected; the last datum (textually\n'
-         'rightmost in the display) stored for a given key value prevails.\n',
+         'rightmost in the display) stored for a given key value prevails.\n'
+         '\n'
+         'Changed in version 3.8: Prior to Python 3.8, in dict '
+         'comprehensions,\n'
+         'the evaluation order of key and value was not well-defined.  In\n'
+         'CPython, the value was evaluated before the key.  Starting with '
+         '3.8,\n'
+         'the key is evaluated before the value, as proposed by **PEP 572**.\n',
  'dynamic-features': 'Interaction with dynamic features\n'
                      '*********************************\n'
                      '\n'

Misc/NEWS.d/next/Build/2019-06-17-09-40-59.bpo-37189.j5ebdT.rst

@@ -1,3 +0,0 @@
-Many ``PyRun_XXX()`` functions like :c:func:`PyRun_String` were no longer
-exported in ``libpython38.dll`` by mistake. Export them again to fix the ABI
-compatibiliy.

Misc/NEWS.d/next/C API/2019-06-06-08-47-04.bpo-37170.hO_fpM.rst

@@ -1 +0,0 @@
-Fix the cast on error in :c:func:`PyLong_AsUnsignedLongLongMask()`.

Misc/NEWS.d/next/C API/2019-06-07-10-47-37.bpo-37191.iGL1_K.rst

@@ -1,3 +0,0 @@
-Python.h does not need compiler support for intermingled declarations (GCC's
-``-Wdeclaration-after-statement``), which were added in 3.8.0 Beta 1. Note
-that in Python 3.9, intermingled declarations will be needed again.

Misc/NEWS.d/next/C API/2019-06-10-15-32-34.bpo-37215.yzoNyU.rst

@@ -1 +0,0 @@
-Fix dtrace issue introduce by bpo-36842

Misc/NEWS.d/next/C API/2019-06-11-02-50-38.bpo-37221.4tClQT.rst

@@ -1,3 +0,0 @@
-The new function :c:func:`PyCode_NewWithPosOnlyArgs` allows to create
-code objects like :c:func:`PyCode_New`, but with an extra *posonlyargcount*
-parameter for indicating the number of positonal-only arguments.

Misc/NEWS.d/next/C API/2019-06-12-11-45-36.bpo-37221.RhP1E7.rst

@@ -1,4 +0,0 @@
-``tp_print`` is put back at the end of the ``PyTypeObject`` structure
-to restore support for old code (in particular generated by Cython)
-setting ``tp_print = 0``.
-Note that ``tp_print`` will be removed entirely in Python 3.9.

Misc/NEWS.d/next/C API/2019-06-14-14-03-51.bpo-28805.qZC0N_.rst

@@ -1 +0,0 @@
-The :const:`METH_FASTCALL` calling convention has been documented.

Misc/NEWS.d/next/C API/2019-06-28-15-49-16.bpo-36763.zrmgki.rst

@@ -1 +0,0 @@
-Add :func:`PyConfig_SetWideStringList` function.

Misc/NEWS.d/next/Core and Builtins/2019-05-28-11-47-44.bpo-37077.S1h0Fc.rst

@@ -1,2 +0,0 @@
-Add :func:`threading.get_native_id` support for AIX.
-Patch by M. Felt

Misc/NEWS.d/next/Core and Builtins/2019-06-05-09-24-17.bpo-37160.O3IAY3.rst

@@ -1 +0,0 @@
-:func:`threading.get_native_id` now also supports NetBSD.

Misc/NEWS.d/next/Core and Builtins/2019-06-06-11-00-55.bpo-36974.wdzzym.rst

@@ -1,2 +0,0 @@
-The slot ``tp_vectorcall_offset`` is inherited unconditionally to support
-``super().__call__()`` when the base class uses vectorcall.

Misc/NEWS.d/next/Core and Builtins/2019-06-06-13-59-52.bpo-36922.EMZ3TF.rst

@@ -1 +0,0 @@
-Slot functions optimize any callable with ``Py_TPFLAGS_METHOD_DESCRIPTOR`` instead of only instances of ``function``.

Misc/NEWS.d/next/Core and Builtins/2019-06-10-23-18-31.bpo-37219.jPSufq.rst

@@ -1 +0,0 @@
-Remove errorneous optimization for empty set differences.

Misc/NEWS.d/next/Core and Builtins/2019-06-11-11-15-19.bpo-37213.UPii5K.rst

@@ -1,2 +0,0 @@
-Handle correctly negative line offsets in the peephole optimizer. Patch by
-Pablo Galindo.

Misc/NEWS.d/next/Core and Builtins/2019-06-14-06-32-33.bpo-37269.SjVVAe.rst

@@ -1,2 +0,0 @@
-Fix a bug in the peephole optimizer that was not treating correctly constant
-conditions with binary operators. Patch by Pablo Galindo.

Misc/NEWS.d/next/Core and Builtins/2019-06-17-03-53-16.bpo-37316.LytDX_.rst

@@ -1 +0,0 @@
-Fix the :c:func:`PySys_Audit` call in :class:`mmap.mmap`.

Misc/NEWS.d/next/Core and Builtins/2019-06-17-06-03-55.bpo-35224.FHWPGv.rst

@@ -1,2 +0,0 @@
-Reverse evaluation order of key: value in dict comprehensions as proposed in PEP 572.
-I.e. in ``{k: v for ...}``, ``k`` will be evaluated before ``v``.