Merge tag 'v3.8.0b2' into 3.8

Python 3.8.0b2

Author: ambv

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 @@
              '\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 @@
          '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'