Christian Heimes [Tue, 2 Jul 2019 18:39:42 +0000 (20:39 +0200)]
bpo-37463: match_hostname requires quad-dotted IPv4 (GH-14499)
ssl.match_hostname() no longer accepts IPv4 addresses with additional text
after the address and only quad-dotted notation without trailing
whitespaces. Some inet_aton() implementations ignore whitespace and all data
after whitespace, e.g. '127.0.0.1 whatever'.
Short notations like '127.1' for '127.0.0.1' were already filtered out.
The bug was initially found by Dominik Czarnota and reported by Paul Kehrer.
Signed-off-by: Christian Heimes <christian@python.org>
https://bugs.python.org/issue37463
Victor Stinner [Tue, 2 Jul 2019 12:50:19 +0000 (14:50 +0200)]
bpo-37421: urllib.request tests call urlcleanup() (GH-14529)
urllib.request tests now call urlcleanup() to remove temporary files
created by urlretrieve() tests and to clear the _opener global
variable set by urlopen() and functions calling indirectly urlopen().
regrtest now checks if urllib.request._url_tempfiles and
urllib.request._opener are changed by tests.
Victor Stinner [Tue, 2 Jul 2019 11:32:32 +0000 (13:32 +0200)]
bpo-37421: multiprocessing tests call _run_finalizers() (GH-14527)
multiprocessing tests now call explicitly _run_finalizers() to remove
immediately temporary directories created by
multiprocessing.util.get_temp_dir().
Jakub Kulík [Tue, 2 Jul 2019 10:48:28 +0000 (12:48 +0200)]
bpo-37335, test_c_locale_coercion: Remove unnecessary code (GH-14447)
Python initialization now ensures that sys stream encoding
names are always normalized by codecs.lookup(encoding).name.
Simplify test_c_locale_coercion: it doesn't have to normalize
encoding names anymore.
Jeroen Demeyer [Tue, 2 Jul 2019 09:49:40 +0000 (11:49 +0200)]
bpo-36904: Optimize _PyStack_UnpackDict (GH-14517)
Ned Deily [Tue, 2 Jul 2019 07:12:18 +0000 (03:12 -0400)]
bpo-34602: Avoid failures setting macOS stack resource limit (GH-14546)
Under some conditions the earlier fix for bpo-18075, "Infinite recursion
tests triggering a segfault on Mac OS X", now causes failures on macOS
when attempting to change stack limit with resource.setrlimit
resource.RLIMIT_STACK, like regrtest does when running the test suite.
The reverted change had specified a non-default stack size when linking
the python executable on macOS. As of macOS 10.14.4, the previous
code causes a hard failure when running tests, although similar
failures had been seen under some conditions under some earlier
systems. Reverting the change to the interpreter stack size at link
time helped for release builds but caused some tests to fail when
built --with-pydebug. Try the opposite approach: continue to build
the interpreter with an increased stack size on macOS and remove
the failing setrlimit call in regrtest initialization. This will
definitely avoid the resource.RLIMIT_STACK error and should have
no, or fewer, side effects.
Benjamin Peterson [Tue, 2 Jul 2019 05:07:44 +0000 (22:07 -0700)]
Put pyexpatns.h include back. bpo-37437 (GH-14539)
Steve Dower [Mon, 1 Jul 2019 23:03:53 +0000 (16:03 -0700)]
bpo-37363: Add audit events on startup for the run commands (GH-14524)
Vinay Sajip [Mon, 1 Jul 2019 19:45:01 +0000 (20:45 +0100)]
bpo-37470: Document more clearly the error handling for QueueHandler.emit(). (GH-14532)
Victor Stinner [Mon, 1 Jul 2019 17:52:45 +0000 (19:52 +0200)]
bpo-36763: Use PyConfig_Clear() (GH-14445)
Stop using "static PyConfig", PyConfig must now always use
dynamically allocated strings: use PyConfig_SetString(),
PyConfig_SetArgv() and PyConfig_Clear().
Vinay Sajip [Mon, 1 Jul 2019 17:45:07 +0000 (18:45 +0100)]
bpo-37469: Document usability of SimpleQueue with QueueHandler and QueueListener. (GH-14521)
Victor Stinner [Mon, 1 Jul 2019 17:13:50 +0000 (19:13 +0200)]
bpo-36763: Add PyConfig_SetWideStringList() (GH-14444)
Victor Stinner [Mon, 1 Jul 2019 16:35:07 +0000 (18:35 +0200)]
bpo-37472: Remove Lib/test/outstanding_bugs.py (GH-14516)
Victor Stinner [Mon, 1 Jul 2019 16:28:25 +0000 (18:28 +0200)]
Remove unused imports in tests (GH-14518)
Victor Stinner [Mon, 1 Jul 2019 14:51:18 +0000 (16:51 +0200)]
bpo-37467: Fix PyErr_Display() for bytes filename (GH-14504)
Fix sys.excepthook() and PyErr_Display() if a filename is a bytes
string. For example, for a SyntaxError exception where the filename
attribute is a bytes string.
Cleanup also test_sys:
* Sort imports.
* Rename numruns global var to INTERN_NUMRUNS.
* Add DisplayHookTest and ExceptHookTest test case classes.
* Don't save/restore sys.stdout and sys.displayhook using
setUp()/tearDown(): do it in each test method.
* Test error case (call hook with no argument) after the success case.
Pierre Glaser [Mon, 1 Jul 2019 13:51:57 +0000 (15:51 +0200)]
bpo-37209: Add pickle entry for 3.8 whatsnew (GH-14503)
Miro Hrončok [Mon, 1 Jul 2019 12:12:40 +0000 (14:12 +0200)]
bpo-10945: Drop support for bdist_wininst on non-Windows systems (GH-14506)
bdist_wininst depends on MBCS codec, unavailable on non-Windows,
and bdist_wininst have not worked since at least Python 3.2, possibly
never on Python 3.
Here we document that bdist_wininst is only supported on Windows,
and we mark it unsupported otherwise to skip tests.
Distributors of Python 3 can now safely drop the bdist_wininst .exe files
without the need to skip bdist_wininst related tests.
Vinay Sajip [Mon, 1 Jul 2019 11:41:21 +0000 (12:41 +0100)]
bpo-32934: Clarified meaning of 'capacity' for BufferingHandler and MemoryHandler. (GH-14498)
Pablo Galindo [Mon, 1 Jul 2019 10:35:05 +0000 (11:35 +0100)]
bpo-37221: Add PyCode_NewWithPosOnlyArgs to be used internally and set PyCode_New as a compatibility wrapper (GH-13959)
Add PyCode_NewEx to be used internally and set PyCode_New as a compatibility wrapper
Ned Deily [Mon, 1 Jul 2019 09:53:42 +0000 (05:53 -0400)]
Minor updates to the macOS installer screens for 3.8.0b2 (GH-14501)
Christian Heimes [Mon, 1 Jul 2019 06:32:24 +0000 (08:32 +0200)]
bpo-37440: Enable TLS 1.3 post-handshake auth in http.client (GH-14448)
Post-handshake authentication is required for conditional client cert authentication with TLS 1.3.
https://bugs.python.org/issue37440
Christian Heimes [Mon, 1 Jul 2019 06:29:17 +0000 (08:29 +0200)]
bpo-37428: Don't set PHA verify flag on client side (GH-14421)
SSLContext.post_handshake_auth = True no longer sets
SSL_VERIFY_POST_HANDSHAKE verify flag for client connections. Although the
option is documented as ignored for clients, OpenSSL implicitly enables cert
chain validation when the flag is set.
Signed-off-by: Christian Heimes <christian@python.org>
https://bugs.python.org/issue37428
Krishna Oza [Mon, 1 Jul 2019 06:04:20 +0000 (11:34 +0530)]
bpo-36168: Lowercase the word "subsequent" in get_value doc (GH-14485)
Subsequent -> subsequent
https://bugs.python.org/issue36168
Zackery Spytz [Sun, 30 Jun 2019 15:24:43 +0000 (09:24 -0600)]
bpo-37199: Fix test failures when IPv6 is unavailable or disabled (#14480)
Andrew Svetlov [Sun, 30 Jun 2019 09:54:59 +0000 (12:54 +0300)]
bpo-35621: Support running subprocesses in asyncio when loop is executed in non-main thread (GH-14344)
Ammar Askar [Sun, 30 Jun 2019 05:54:43 +0000 (01:54 -0400)]
bpo-29505: Add more fuzzing for re.compile, re.load and csv.reader (GH-14255)
Add more fuzz testing for re.compile, re.load and csv.reader
tmblweed [Sun, 30 Jun 2019 04:20:03 +0000 (21:20 -0700)]
bpo-30754: Document textwrap.dedent blank line behavior. (GH-14469)
* Added documentation for textwrap.dedent behavior.
* Remove an obsolete note about pre-2.5 behavior from the docstring.
Benjamin Peterson [Sat, 29 Jun 2019 23:00:22 +0000 (16:00 -0700)]
bpo-37437: Pass -Wno-unreachable-code when compiling expat. (GH-14470)
Andre Delfino [Sat, 29 Jun 2019 21:59:49 +0000 (18:59 -0300)]
Make StreamHandler.terminator more discoverable (GH-14359)
Andre Delfino [Sat, 29 Jun 2019 21:57:39 +0000 (18:57 -0300)]
Fix indentation in logging.handlers.setStream (GH-14358)
Steve Dower [Sat, 29 Jun 2019 21:28:43 +0000 (14:28 -0700)]
bpo-37369: Fixes crash when reporting fatal error (GH-14468)
Steve Dower [Sat, 29 Jun 2019 17:34:11 +0000 (10:34 -0700)]
bpo-37369: Fix initialization of sys members when launched via an app container (GH-14428)
sys._base_executable is now always defined on all platforms, and can be overridden through configuration.
Also adds test.support.PythonSymlink to encapsulate platform-specific logic for symlinking sys.executable
Kyle Stanley [Fri, 28 Jun 2019 19:37:11 +0000 (15:37 -0400)]
bpo-19696: Moved "test_pkgimport.py" to dir "test_importlib" (GH-14303)
Also renamed the file to "test_pkg_import.py" to better follow the naming convention. Component of issue 19696.
https://bugs.python.org/issue19696
Brett Cannon [Fri, 28 Jun 2019 19:14:31 +0000 (12:14 -0700)]
bpo-37403: Touch up venv docs (GH-14458)
Add a versionadded for PS Core and note that `.venv` is a common virtual environment name.
Brian Quinlan [Fri, 28 Jun 2019 18:54:52 +0000 (11:54 -0700)]
bpo-31783: Fix a race condition creating workers during shutdown (#13171)
* bpo-31783: Fix a race condition while creating workers during interpreter shutdown
* 📜🤖 Added by blurb_it.
Victor Stinner [Fri, 28 Jun 2019 17:39:48 +0000 (19:39 +0200)]
bpo-37412: Fix test_os.test_getcwd_long_path() on macOS (GH-14452)
Ruslan Kuprieiev [Fri, 28 Jun 2019 16:12:16 +0000 (19:12 +0300)]
bpo-37380: subprocess: don't use _active on win (GH-14360)
As noted by @eryksun in [1] and [2], using _cleanup and _active(in
__del__) is not necessary on Windows, since:
> Unlike Unix, a process in Windows doesn't have to be waited on by
> its parent to avoid a zombie. Keeping the handle open will actually
> create a zombie until the next _cleanup() call, which may be never
> if Popen() isn't called again.
This patch simply defines `subprocess._active` as `None`, for which we already
have the proper logic in place in `subprocess.Popen.__del__`, that prevents it
from trying to append the process to the `_active`. This patch also defines
`subprocess._cleanup` as a noop for Windows.
[1] https://bugs.python.org/issue37380#msg346333
[2] https://bugs.python.org/issue36067#msg336262
Signed-off-by: Ruslan Kuprieiev <ruslan@iterative.ai>
Victor Stinner [Fri, 28 Jun 2019 16:05:05 +0000 (18:05 +0200)]
bpo-37412: pythoninfo: add Windows long paths (GH-14434)
On Windows, test.pythoninfo now checks if support for long paths is
enabled using ntdll.RtlAreLongPathsEnabled() function.
Co-Authored-By: Eryk Sun <eryksun@gmail.com>
Victor Stinner [Fri, 28 Jun 2019 16:01:59 +0000 (18:01 +0200)]
bpo-37412: Fix os.getcwd() for long path on Windows (GH-14424)
* Fix test for integer overflow.
* Add an unit test.
Victor Stinner [Fri, 28 Jun 2019 14:49:38 +0000 (16:49 +0200)]
bpo-20443: Fix calculate_program_full_path() warning (GH-14446)
Don't call _Py_isabs() with a bytes string (char*), the function
expects as wide string.
Jeroen Demeyer [Fri, 28 Jun 2019 09:49:00 +0000 (11:49 +0200)]
bpo-37337: Add _PyObject_VectorcallMethod() (GH-14228)
Hai Shi [Fri, 28 Jun 2019 09:02:57 +0000 (04:02 -0500)]
bpo-37432: Doc: Fix signature of PyObject_Del() (GH-14430)
Benjamin Peterson [Fri, 28 Jun 2019 03:54:44 +0000 (20:54 -0700)]
closes bpo-37437: Update vendorized expat to 2.2.7. (GH-14436)
Steve Dower [Thu, 27 Jun 2019 17:47:59 +0000 (10:47 -0700)]
bpo-37390: Add audit event table to documentations (GH-14406)
Also updates some (unreleased) event names to be consistent with the others.
Inada Naoki [Thu, 27 Jun 2019 17:05:37 +0000 (02:05 +0900)]
bpo-30345: travis: use -Og with --with-pydebug (GH-14423)
Brandt Bucher [Thu, 27 Jun 2019 16:10:57 +0000 (09:10 -0700)]
closes bpo-37420: Handle errors during iteration in os.sched_setaffinity. (GH-14414)
Andrew Svetlov [Thu, 27 Jun 2019 11:38:47 +0000 (14:38 +0300)]
Replace deprecation warning with RuntimeError (GH-14397)
Jeroen Demeyer [Thu, 27 Jun 2019 11:17:44 +0000 (13:17 +0200)]
bpo-33926: enable GDB tests on Travis CI (GH-14395)
Victor Stinner [Thu, 27 Jun 2019 07:04:28 +0000 (09:04 +0200)]
bpo-35389: platform.platform() calls libc_ver() without executable (GH-14418)
When libc_ver() is called with an executable, the
os.confstr('CS_GNU_LIBC_VERSION') fast-path cannot be taken. Modify
platform.platform() to call libc_ver() without executable, instead of
calling libc_ver(sys.executable), since sys.executable is already the
default value.
Victor Stinner [Wed, 26 Jun 2019 23:39:53 +0000 (01:39 +0200)]
bpo-37421: Fix test_shutil: don't leak temporary files (GH-14416)
* Fix typo in supports_file2file_sendfile(); ensure that dst is
removed
* Fix test_copytree_custom_copy_function(): remove dst tree.
Use support.rmtree() rather than shutil.rmtree() to remove
temporary directories: support tries harder.
Carl Bordum Hansen [Wed, 26 Jun 2019 23:13:18 +0000 (01:13 +0200)]
bpo-37376: pprint support for SimpleNamespace (GH-14318)
https://bugs.python.org/issue37376
Zackery Spytz [Wed, 26 Jun 2019 20:54:20 +0000 (14:54 -0600)]
bpo-37419: Fix possible segfaults when passing large sequences to os.posix_spawn() (GH-14409)
Use Py_ssize_t instead of int for i.
Abhilash Raj [Wed, 26 Jun 2019 20:13:02 +0000 (13:13 -0700)]
bpo-29412: Fix indexError when parsing a header value ending unexpectedly (GH-14387)
* patched string index out of range error in get_word function of _header_value_parser.py and created tests in test__header_value_parser.py for CFWS.
* Raise HeaderParseError instead of continuing when parsing a word.
Brandt Bucher [Wed, 26 Jun 2019 19:06:18 +0000 (12:06 -0700)]
bpo-37417: Fix error handling in bytearray.extend. (GH-14407)
Victor Stinner [Wed, 26 Jun 2019 16:16:35 +0000 (18:16 +0200)]
bpo-37411: Rewrite test_wsgiref.testEnviron() (GH-14394)
Fix test_wsgiref.testEnviron() to no longer depend on the environment
variables (don't fail if "X" variable is set).
testEnviron() now overrides os.environ to get a deterministic
environment. Test full TestHandler.environ content: not only a few
selected variables.
Serhiy Storchaka [Wed, 26 Jun 2019 16:07:44 +0000 (19:07 +0300)]
bpo-37163: Make the obj argument of dataclasses.replace() a positional-only. (GH-14390)
Victor Stinner [Wed, 26 Jun 2019 16:01:10 +0000 (18:01 +0200)]
bpo-37414: Remove sys.callstats() (GH-14398)
Remove the undocumented sys.callstats() function. Since Python 3.7,
it was deprecated and always returned None. It required a special
build option CALL_PROFILE which was already removed in Python 3.7.
Steve Dower [Wed, 26 Jun 2019 15:55:57 +0000 (08:55 -0700)]
Improve Windows commands in tutorial (GH-14379)
Victor Stinner [Wed, 26 Jun 2019 15:31:12 +0000 (17:31 +0200)]
bpo-37412: os.getcwdb() now uses UTF-8 on Windows (GH-14396)
The os.getcwdb() function now uses the UTF-8 encoding on Windows,
rather than the ANSI code page: see PEP 529 for the rationale. The
function is no longer deprecated on Windows.
os.getcwd() and os.getcwdb() now detect integer overflow on memory
allocations. On Unix, these functions properly report MemoryError on
memory allocation failure.
Victor Stinner [Wed, 26 Jun 2019 01:16:24 +0000 (03:16 +0200)]
bpo-37406: sqlite3 raises TypeError for wrong operation type (GH-14386)
The sqlite3 module now raises TypeError, rather than ValueError, if
operation argument type is not str: execute(), executemany() and
calling a connection.
Victor Stinner [Tue, 25 Jun 2019 23:49:32 +0000 (01:49 +0200)]
bpo-37388: Add PyUnicode_Decode(str, 0) fast-path (GH-14385)
Add a fast-path to PyUnicode_Decode() for size equals to 0.
Victor Stinner [Tue, 25 Jun 2019 22:51:05 +0000 (00:51 +0200)]
bpo-37388: Development mode check encoding and errors (GH-14341)
In development mode and in debug build, encoding and errors arguments
are now checked on string encoding and decoding operations. Examples:
open(), str.encode() and bytes.decode().
By default, for best performances, the errors argument is only
checked at the first encoding/decoding error, and the encoding
argument is sometimes ignored for empty strings.
Pierre Glaser [Tue, 25 Jun 2019 22:30:17 +0000 (00:30 +0200)]
bpo-37244: Fix test_multiprocessing.test_resource_tracker() (GH-14288)
Increase robustness of test_resource_tracker(): retry for 60 seconds.
Pierre Glaser [Tue, 25 Jun 2019 20:44:11 +0000 (22:44 +0200)]
bpo-36888, test_multiprocessing: Increase test_parent_process timeout (GH-14286)
Abhilash Raj [Tue, 25 Jun 2019 17:03:19 +0000 (10:03 -0700)]
bpo-33972: Fix EmailMessage.iter_attachments raising AttributeError. (GH-14119)
* bpo-33972: Fix EmailMessage.iter_attachments raising AttributeError.
When certain malformed messages have content-type set to 'mulitpart/*' but
still have a single part body, iter_attachments can raise AttributeError. This
patch fixes it by returning a None value instead when the body is single part.
Victor Stinner [Tue, 25 Jun 2019 15:06:24 +0000 (17:06 +0200)]
bpo-37400: Fix test_os.test_chown() (GH-14374)
Use os.getgroups() rather than grp.getgrall() to get groups.
Rename also the test to test_chown_gid().
Victor Stinner [Tue, 25 Jun 2019 13:02:43 +0000 (15:02 +0200)]
bpo-20443: _PyConfig_Read() gets the absolute path of run_filename (GH-14053)
Python now gets the absolute path of the script filename specified on
the command line (ex: "python3 script.py"): the __file__ attribute of
the __main__ module, sys.argv[0] and sys.path[0] become an absolute
path, rather than a relative path.
* Add _Py_isabs() and _Py_abspath() functions.
* _PyConfig_Read() now tries to get the absolute path of
run_filename, but keeps the relative path if _Py_abspath() fails.
* Reimplement os._getfullpathname() using _Py_abspath().
* Use _Py_isabs() in getpath.c.
Xtreak [Tue, 25 Jun 2019 12:16:55 +0000 (17:46 +0530)]
bpo-37392: Update the dir(sys) in module tutorial (GH-14365)
Victor Stinner [Tue, 25 Jun 2019 11:37:27 +0000 (13:37 +0200)]
bpo-37400: pythoninfo logs getpwuid and getgrouplist (GH-14373)
test.pythoninfo now also logs pwd.getpwuid(os.getuid()) and
os.getgrouplist(). Extract also os.getrandom() test to run it first.
Pablo Galindo [Tue, 25 Jun 2019 10:55:23 +0000 (11:55 +0100)]
Fix minor spelling error in What's new for Python 3.8 (GH-14371)
Serhiy Storchaka [Tue, 25 Jun 2019 08:54:18 +0000 (11:54 +0300)]
bpo-24214: Fixed the UTF-8 and UTF-16 incremental decoders. (GH-14304)
* The UTF-8 incremental decoders fails now fast if encounter
a sequence that can't be handled by the error handler.
* The UTF-16 incremental decoders with the surrogatepass error
handler decodes now a lone low surrogate with final=False.
Zackery Spytz [Tue, 25 Jun 2019 06:49:46 +0000 (00:49 -0600)]
bpo-37393: Fix deprecation warnings in test_ntpath. (GH-14357)
eval() was being called an extra time without a filter for
deprecation warnings.
Raymond Hettinger [Tue, 25 Jun 2019 02:39:22 +0000 (04:39 +0200)]
bpo-36546: Mark first argument as position only (GH-14363)
Pablo Galindo [Tue, 25 Jun 2019 01:53:30 +0000 (02:53 +0100)]
bpo-37394: Fix pure Python implementation of the queue module (GH-14351)
Pablo Galindo [Tue, 25 Jun 2019 01:41:58 +0000 (02:41 +0100)]
bpo-35224: Add What's new entry for evaluation order in dict comprehensions (GH-14319)
Victor Stinner [Tue, 25 Jun 2019 01:01:08 +0000 (03:01 +0200)]
bpo-37392: Remove sys.setcheckinterval() (GH-14355)
Remove sys.getcheckinterval() and sys.setcheckinterval() functions.
They were deprecated since Python 3.2. Use sys.getswitchinterval()
and sys.setswitchinterval() instead.
Remove also check_interval field of the PyInterpreterState structure.
David K. Hess [Mon, 24 Jun 2019 23:46:59 +0000 (18:46 -0500)]
bpo-4963: Fix for initialization and non-deterministic behavior issues in mimetypes (GH-3062)
animalize [Mon, 24 Jun 2019 23:43:26 +0000 (07:43 +0800)]
bpo-25361: Enable SSE2 instructions for Windows 32-bit build (GH-12438)
animalize [Mon, 24 Jun 2019 23:22:14 +0000 (07:22 +0800)]
bpo-35360: Update Windows builds to use SQLite 3.28.0 (GH-14179)
Xtreak [Mon, 24 Jun 2019 18:16:58 +0000 (23:46 +0530)]
bpo-36889: Document asyncio Stream and StreamServer (GH-14203)
ziheng [Mon, 24 Jun 2019 17:59:51 +0000 (01:59 +0800)]
bpo-32627: Fix compile error when conflicting `_uuid` headers included (GH-11751)
Andrew Svetlov [Mon, 24 Jun 2019 16:47:28 +0000 (19:47 +0300)]
Get rid of exception traceback printing in asyncio tests (GH-14343)
Steve Dower [Mon, 24 Jun 2019 15:42:54 +0000 (08:42 -0700)]
bpo-37363: Add audit events for a range of modules (GH-14301)
Victor Stinner [Mon, 24 Jun 2019 11:19:48 +0000 (13:19 +0200)]
bpo-37359: Fix regrtest --cleanup (GH-14336)
Jeroen Demeyer [Mon, 24 Jun 2019 10:41:05 +0000 (12:41 +0200)]
bpo-36974: inherit tp_vectorcall_offset unconditionally (GH-13858)
Victor Stinner [Mon, 24 Jun 2019 10:03:00 +0000 (12:03 +0200)]
bpo-37359: Add --cleanup option to python3 -m test (GH-14332)
* regrtest: Add --cleanup option to remove "test_python_*" directories
of previous failed test jobs.
* Add "make cleantest" to run "python3 -m test --cleanup".
Gabe Appleton [Mon, 24 Jun 2019 09:58:56 +0000 (02:58 -0700)]
bpo-37345: Add formal UDPLITE support (GH-14258)
At the moment you can definitely use UDPLITE sockets on Linux systems, but it would be good if this support were formalized such that you can detect support at runtime easily.
At the moment, to make and use a UDPLITE socket requires something like the following code:
```
>>> import socket
>>> a = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, 136)
>>> b = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, 136)
>>> a.bind(('localhost', 44444))
>>> b.sendto(b'test'*256, ('localhost', 44444))
>>> b.setsockopt(136, 10, 16)
>>> b.sendto(b'test'*256, ('localhost', 44444))
>>> b.setsockopt(136, 10, 32)
>>> b.sendto(b'test'*256, ('localhost', 44444))
>>> b.setsockopt(136, 10, 64)
>>> b.sendto(b'test'*256, ('localhost', 44444))
```
If you look at this through Wireshark, you can see that the packets are different in that the checksums and checksum coverages change.
With the pull request that I am submitting momentarily, you could do the following code instead:
```
>>> import socket
>>> a = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, socket.IPPROTO_UDPLITE)
>>> b = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, socket.IPPROTO_UDPLITE)
>>> a.bind(('localhost', 44444))
>>> b.sendto(b'test'*256, ('localhost', 44444))
>>> b.set_send_checksum_coverage(16)
>>> b.sendto(b'test'*256, ('localhost', 44444))
>>> b.set_send_checksum_coverage(32)
>>> b.sendto(b'test'*256, ('localhost', 44444))
>>> b.set_send_checksum_coverage(64)
>>> b.sendto(b'test'*256, ('localhost', 44444))
```
One can also detect support for UDPLITE just by checking
```
>>> hasattr(socket, 'IPPROTO_UDPLITE')
```
https://bugs.python.org/issue37345
Inada Naoki [Mon, 24 Jun 2019 03:30:24 +0000 (12:30 +0900)]
bpo-37348: optimize decoding ASCII string (GH-14283)
`_PyUnicode_Writer` is a relatively complex structure. Initializing it is significant overhead when decoding short ASCII string.
Pablo Galindo [Sun, 23 Jun 2019 16:00:08 +0000 (17:00 +0100)]
bpo-35224: Bump the pyc magic number by 1 instead of by 10 in last modification (GH-14320)
Pablo Galindo [Sat, 22 Jun 2019 22:47:34 +0000 (23:47 +0100)]
bpo-35224: Bump the pyc magic number after the change in MAP_ADD (GH-14313)
Ben Darnell [Sat, 22 Jun 2019 17:38:21 +0000 (13:38 -0400)]
asyncio: Fix docs for default event loop (#14308)
When the Windows default event loop changed, `asyncio-policy.rst` was updated but `asyncio-eventloop.rst` was missed.
Jörn Heissler [Sat, 22 Jun 2019 14:40:55 +0000 (16:40 +0200)]
bpo-35224: Reverse evaluation order of key: value in dict comprehensions (GH-14139)
… as proposed in PEP 572; key is now evaluated before value.
https://bugs.python.org/issue35224
mbarkhau [Sat, 22 Jun 2019 12:51:06 +0000 (14:51 +0200)]
Improve threading.daemon docstring (GH-14278)
Rephrase and clarify that "the entire Python program exits when only daemon threads are left". This matches the documentation at https://docs.python.org/3/library/threading.html#thread-objects.
Xtreak [Sat, 22 Jun 2019 10:25:26 +0000 (15:55 +0530)]
bpo-37323: Suppress DeprecationWarning raised by @asyncio.coroutine (GH-14293)
When the test is ran with `PYTHONWARNINGS=error` the environment variable is passed to the python interpreter used in `assert_python_ok` where `DeprecationWarning` from `@asyncio.coroutine` is converted into an error. Ignore the `DeprecationWarning` in `assert_python_ok`.
https://bugs.python.org/issue37323
Steve Dower [Fri, 21 Jun 2019 22:16:46 +0000 (15:16 -0700)]
bpo-37364: Use io.open_code() to read .pth files (GH-14299)
https://bugs.python.org/issue37364
Steve Dower [Fri, 21 Jun 2019 21:28:46 +0000 (14:28 -0700)]
bpo-37351: Removes libpython38.a from standard Windows distribution (#14276)
Victor Stinner [Fri, 21 Jun 2019 21:17:30 +0000 (23:17 +0200)]
bpo-37362: test_gdb now ignores stderr (GH-14287)
test_gdb no longer fails if it gets an "unexpected" message on
stderr: it now ignores stderr. The purpose of test_gdb is to test
that python-gdb.py commands work as expected, not to test gdb.
Brad [Fri, 21 Jun 2019 18:20:21 +0000 (14:20 -0400)]
Use `python -m pip install` in porting guide and venv docs (GH-13257)
This is to help prevent people from accidentally installing into the wrong Python interpreter if they are not aware of which Python interpreter `pip` points to.
Joannah Nanjekye [Fri, 21 Jun 2019 18:17:00 +0000 (15:17 -0300)]
bpo-30202 : Update test.test_importlib.test_abc to test find_spec() (GH-12847)
Paul Monson [Fri, 21 Jun 2019 16:40:05 +0000 (09:40 -0700)]
bpo-36511: Fix -u parameters for ARM32 tests (GH-14280)