Log Message:
python38 py38-html-docs: updated to 3.8.4

Python 3.8.4 final

Security
bpo-41162: Audit hooks are now cleared later during finalization to avoid \ 
missing events.
bpo-29778: Ensure python3.dll is loaded from correct locations when Python is \ 
embedded (CVE-2020-15523).

Core and Builtins
bpo-41247: Always cache the running loop holder when running \ 
asyncio.set_running_loop.
bpo-41252: Fix incorrect refcounting in _ssl.c’s _servername_callback().
bpo-41218: Python 3.8.3 had a regression where compiling with \ 
ast.PyCF_ALLOW_TOP_LEVEL_AWAIT would aggressively mark list comprehension with \ 
CO_COROUTINE. Now only list comprehension making use of async/await will tagged \ 
as so.
bpo-41175: Guard against a NULL pointer dereference within bytearrayobject \ 
triggered by the bytearray() + bytearray() operation.
bpo-39960: The “hackcheck” that prevents sneaking around a type’s \ 
__setattr__() by calling the superclass method was rewritten to allow C \ 
implemented heap types.

Library
bpo-41235: Fix the error handling in ssl.SSLContext.load_dh_params().
bpo-41193: The write_history() atexit function of the readline completer now \ 
ignores any OSError to ignore error if the filesystem is read-only, instead of \ 
only ignoring FileNotFoundError and PermissionError.
bpo-41043: Fixed the use of glob() in the stdlib: literal part of the path is \ 
now always correctly escaped.
bpo-39384: Fixed email.contentmanager to allow set_content() to set a null string.

IDLE
bpo-37765: Add keywords to module name completion list. Rewrite Completions \ 
section of IDLE doc.
bpo-41152: The encoding of stdin, stdout and stderr in IDLE is now always UTF-8.

Python 3.8.4 release candidate 1

Security
bpo-41004: The __hash__() methods of ipaddress.IPv4Interface and \ 
ipaddress.IPv6Interface incorrectly generated constant hash values of 32 and 128 \ 
respectively. This resulted in always causing hash collisions. The fix uses \ 
hash() to generate hash values for the tuple of (address, mask length, network \ 
address).
bpo-39073: Disallow CR or LF in email.headerregistry.Address arguments to guard \ 
against header injection attacks.
Core and Builtins
bpo-41094: Fix decoding errors with audit when open files with non-ASCII names \ 
on non-UTF-8 locale.
bpo-41056: Fixes a reference to deallocated stack space during startup when \ 
constructing sys.path involving a relative symlink when code was supplied via \ 
-c. (discovered via Coverity)
bpo-35975: Stefan Behnel reported that cf_feature_version is used even when \ 
PyCF_ONLY_AST is not set. This is against the intention and against the \ 
documented behavior, so it’s been fixed.
bpo-40957: Fix refleak in _Py_fopen_obj() when PySys_Audit() fails
bpo-40870: Raise ValueError when validating custom AST’s where the constants \ 
True, False and None are used within a ast.Name node.
bpo-40826: Fix GIL usage in PyOS_Readline(): lock the GIL to set an exception \ 
and pass the Python thread state when checking if there is a pending signal.
bpo-40824: Unexpected errors in calling the __iter__ method are no longer masked \ 
by TypeError in the in operator and functions contains(), indexOf() and \ 
countOf() of the operator module.
bpo-40663: Correctly generate annotations where parentheses are omitted but \ 
required (e.g: Type[(str, int, *other))].

Library
bpo-41138: Fixed the trace module CLI for Python source files with non-UTF-8 \ 
encoding.
bpo-31938: Fix default-value signatures of several functions in the select \ 
module - by Anthony Sottile.
bpo-41068: Fixed reading files with non-ASCII names from ZIP archive directly \ 
after writing them.
bpo-41058: pdb.find_function() now correctly determines the source file encoding.
bpo-41056: Fix a NULL pointer dereference within the ssl module during a \ 
MemoryError in the keylog callback. (discovered by Coverity)
bpo-41048: mimetypes.read_mime_types() function reads the rule file using UTF-8 \ 
encoding, not the locale encoding. Patch by Srinivas Reddy Thatiparthy.
bpo-40448: ensurepip now disables the use of pip cache when installing the \ 
bundled versions of pip and setuptools. Patch by Krzysztof Konopko.
bpo-40855: The standard deviation and variance functions in the statistics \ 
module were ignoring their mu and xbar arguments.
bpo-40807: Stop codeop._maybe_compile, used by code.InteractiveInterpreter (and \ 
IDLE). from from emitting each warning three times.
bpo-40834: Fix truncate when sending str object with_xxsubinterpreters.channel_send.
bpo-38488: Update ensurepip to install pip 20.1.1 and setuptools 47.1.0.
bpo-40767: webbrowser now properly finds the default browser in pure Wayland \ 
systems by checking the WAYLAND_DISPLAY environment variable. Patch contributed \ 
by Jérémy Attali.
bpo-40795: ctypes module: If ctypes fails to convert the result of a callback or \ 
if a ctypes callback function raises an exception, sys.unraisablehook is now \ 
called with an exception set. Previously, the error was logged into stderr by \ 
PyErr_Print().
bpo-30008: Fix ssl code to be compatible with OpenSSL 1.1.x builds that use \ 
no-deprecated and --api=1.1.0.
bpo-40614: ast.parse() will not parse self documenting expressions in f-strings \ 
when passed feature_version is less than (3, 8).
bpo-40626: Add h5 file extension as MIME Type application/x-hdf5, as per HDF \ 
Group recommendation for HDF5 formatted data files. Patch contributed by Mark \ 
Schwab.
bpo-25872: linecache could crash with a KeyError when accessed from multiple \ 
threads. Fix by Michael Graczyk.
bpo-40597: If text content lines are longer than policy.max_line_length, always \ 
use a content-encoding to make sure they are wrapped.
bpo-40515: The ssl and hashlib modules now actively check that OpenSSL is build \ 
with thread support. Python 3.7.0 made thread support mandatory and no longer \ 
works safely with a no-thread builds.
bpo-13097: ctypes now raises an ArgumentError when a callback is invoked with \ 
more than 1024 arguments.
bpo-40457: The ssl module now support OpenSSL builds without TLS 1.0 and 1.1 methods.
bpo-39830: Add zipfile.Path to __all__ in the zipfile module.
bpo-40025: Raise TypeError when _generate_next_value_ is defined after members. \ 
Patch by Ethan Onstott.
bpo-39244: Fixed multiprocessing.context.get_all_start_methods to properly \ 
return the default method first on macOS.
bpo-39040: Fix parsing of invalid mime headers parameters by collapsing \ 
whitespace between encoded words in a bare-quote-string.
bpo-35714: struct.error is now raised if there is a null character in a struct \ 
format string.
bpo-36290: AST nodes are now raising TypeError on conflicting keyword arguments. \ 
Patch contributed by Rémi Lapeyre.
bpo-29620: assertWarns() no longer raises a RuntimeException when accessing a \ 
module’s __warningregistry__ causes importation of a new module, or when a new \ 
module is imported in another thread. Patch by Kernc.
bpo-34226: Fix cgi.parse_multipart without content_length. Patch by Roger Duran

Tests
bpo-41085: Fix integer overflow in the array.array.index() method on 64-bit \ 
Windows for index larger than 2**31.
bpo-38377: On Linux, skip tests using multiprocessing if the current user cannot \ 
create a file in /dev/shm/ directory. Add the \ 
skip_if_broken_multiprocessing_synchronize() function to the test.support \ 
module.
bpo-41009: Fix use of support.require_{linux|mac|freebsd}_version() decorators \ 
as class decorator.
bpo-41003: Fix test_copyreg when numpy is installed: test.pickletester now \ 
saves/restores warnings filters when importing numpy, to ignore filters \ 
installed by numpy.
bpo-40964: Disable remote imaplib tests, host cyrus.andrew.cmu.edu is blocking \ 
incoming connections.
bpo-40055: distutils.tests now saves/restores warnings filters to leave them \ 
unchanged. Importing tests imports docutils which imports pkg_resources which \ 
adds a warnings filter.
bpo-34401: Make test_gdb properly run on HP-UX. Patch by Michael Osipov.

Build
bpo-40204: Pin Sphinx version to 2.3.1 in Doc/Makefile.
bpo-40653: Move _dirnameW out of HAVE_SYMLINK to fix a potential compiling issue.

Windows
bpo-41074: Fixed support of non-ASCII names in functions msilib.OpenDatabase() \ 
and msilib.init_database() and non-ASCII SQL in method \ 
msilib.Database.OpenView().
bpo-40164: Updates Windows OpenSSL to 1.1.1g
bpo-39631: Changes the registered MIME type for .py files on Windows to \ 
text/x-python instead of text/plain.
bpo-40677: Manually define IO_REPARSE_TAG_APPEXECLINK in case some old Windows \ 
SDK doesn’t have it.
bpo-40650: Include winsock2.h in pytime.c for timeval.
bpo-39148: Add IPv6 support to asyncio datagram endpoints in ProactorEventLoop. \ 
Change the raised exception for unknown address families to ValueError as it’s \ 
not coming from Windows API.

macOS
bpo-39580: Avoid opening Finder window if running installer from the command \ 
line. Patch contributed by Rick Heil.
bpo-41100: Fix configure error when building on macOS 11. Note that the current \ 
Python release was released shortly after the first developer preview of macOS \ 
11 (Big Sur); there are other known issues with building and running on the \ 
developer preview. Big Sur is expected to be fully supported in a future bugfix \ 
release of Python 3.8.x and with 3.9.0.
bpo-41005: fixed an XDG settings issue not allowing macos to open browser in \ 
webbrowser.py
bpo-40741: Update macOS installer to use SQLite 3.32.2.

IDLE
bpo-41144: Make Open Module open a special module such as os.path.
bpo-39885: Make context menu Cut and Copy work again when right-clicking within \ 
a selection.
bpo-40723: Make test_idle pass when run after import.

Tools/Demos
bpo-40479: Update multissltest helper to test with latest OpenSSL 1.0.2, 1.1.0, \ 
1.1.1, and 3.0.0-alpha.
bpo-40163: Fix multissltest tool. OpenSSL has changed download URL for old \ 
releases. The multissltest tool now tries to download from current and old \ 
download URLs.