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Issue #17221: Merge 3.4.0 Alpha 1 entries before and after 3.3.1 release candidate 1.

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Misc/NEWS
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......@@ -695,6 +695,237 @@ Core and Builtins
- Issue #17323: The "[X refs, Y blocks]" printed by debug builds has been
disabled by default. It can be re-enabled with the `-X showrefcount` option.
- Issue #17328: Fix possible refleak in dict.setdefault.
- Issue #17275: Corrected class name in init error messages of the C version of
BufferedWriter and BufferedRandom.
- Issue #7963: Fixed misleading error message that issued when object is
called without arguments.
- Issue #8745: Small speed up zipimport on Windows. Patch by Catalin Iacob.
- Issue #5308: Raise ValueError when marshalling too large object (a sequence
with size >= 2**31), instead of producing illegal marshal data.
- Issue #12983: Bytes literals with invalid \x escape now raise a SyntaxError
and a full traceback including line number.
- Issue #16967: In function definition, evaluate positional defaults before
keyword-only defaults.
- Issue #17173: Remove uses of locale-dependent C functions (isalpha() etc.)
in the interpreter.
- Issue #17137: When an Unicode string is resized, the internal wide character
string (wstr) format is now cleared.
- Issue #17043: The unicode-internal decoder no longer read past the end of
input buffer.
- Issue #17098: All modules now have __loader__ set even if they pre-exist the
bootstrapping of importlib.
- Issue #16979: Fix error handling bugs in the unicode-escape-decode decoder.
- Issue #16772: The base argument to the int constructor no longer accepts
floats, or other non-integer objects with an __int__ method. Objects
with an __index__ method are now accepted.
- Issue #10156: In the interpreter's initialization phase, unicode globals
are now initialized dynamically as needed.
- Issue #16980: Fix processing of escaped non-ascii bytes in the
unicode-escape-decode decoder.
- Issue #16975: Fix error handling bug in the escape-decode bytes decoder.
- Issue #14850: Now a charmap decoder treats U+FFFE as "undefined mapping"
in any mapping, not only in a string.
- Issue #16730: importlib.machinery.FileFinder now no longers raises an
exception when trying to populate its cache and it finds out the directory is
unreadable or has turned into a file. Reported and diagnosed by
David Pritchard.
- Issue #16906: Fix a logic error that prevented most static strings from being
cleared.
- Issue #11461: Fix the incremental UTF-16 decoder. Original patch by
Amaury Forgeot d'Arc.
- Issue #16856: Fix a segmentation fault from calling repr() on a dict with
a key whose repr raise an exception.
- Issue #16367: Fix FileIO.readall() on Windows for files larger than 2 GB.
- Issue #16761: Calling int() with base argument only now raises TypeError.
- Issue #16759: Support the full DWORD (unsigned long) range in Reg2Py
when retrieving a REG_DWORD value. This corrects functions like
winreg.QueryValueEx that may have been returning truncated values.
- Issue #14420: Support the full DWORD (unsigned long) range in Py2Reg
when passed a REG_DWORD value. Fixes OverflowError in winreg.SetValueEx.
- Issue #11939: Set the st_dev attribute of stat_result to allow Windows to
take advantage of the os.path.samefile/sameopenfile/samestat implementations
used by other platforms.
- Issue #16772: The int() constructor's second argument (base) no longer
accepts non integer values. Consistent with the behavior in Python 2.
- Issue #14470: Remove w9xpopen support per PEP 11.
- Issue #9856: Replace deprecation warning with raising TypeError
in object.__format__. Patch by Florent Xicluna.
- Issue #16597: In buffered and text IO, call close() on the underlying stream
if invoking flush() fails.
- Issue #16722: In the bytes() constructor, try to call __bytes__ on the
argument before __index__.
- Issue #16421: loading multiple modules from one shared object is now
handled correctly (previously, the first module loaded from that file
was silently returned). Patch by Václav Šmilauer.
- Issue #16602: When a weakref's target was part of a long deallocation
chain, the object could remain reachable through its weakref even though
its refcount had dropped to zero.
- Issue #16495: Remove extraneous NULL encoding check from bytes_decode().
- Issue #16619: Create NameConstant AST class to represent None, True, and False
literals. As a result, these constants are never loaded at runtime from
builtins.
- Issue #16455: On FreeBSD and Solaris, if the locale is C, the
ASCII/surrogateescape codec is now used, instead of the locale encoding, to
decode the command line arguments. This change fixes inconsistencies with
os.fsencode() and os.fsdecode() because these operating systems announces an
ASCII locale encoding, whereas the ISO-8859-1 encoding is used in practice.
- Issue #16562: Optimize dict equality testing. Patch by Serhiy Storchaka.
- Issue #16588: Silence unused-but-set warnings in Python/thread_pthread
- Issue #16592: stringlib_bytes_join doesn't raise MemoryError on allocation
failure.
- Issue #16546: Fix: ast.YieldFrom argument is now mandatory.
- Issue #16514: Fix regression causing a traceback when sys.path[0] is None
(actually, any non-string or non-bytes type).
- Issue #16306: Fix multiple error messages when unknown command line
parameters where passed to the interpreter. Patch by Hieu Nguyen.
- Issue #16215: Fix potential double memory free in str.replace(). Patch
by Serhiy Storchaka.
- Issue #16290: A float return value from the __complex__ special method is no
longer accepted in the complex() constructor.
- Issue #16416: On Mac OS X, operating system data are now always
encoded/decoded to/from UTF-8/surrogateescape, instead of the locale encoding
(which may be ASCII if no locale environment variable is set), to avoid
inconsistencies with os.fsencode() and os.fsdecode() functions which are
already using UTF-8/surrogateescape.
- Issue #16453: Fix equality testing of dead weakref objects.
- Issue #9535: Fix pending signals that have been received but not yet
handled by Python to not persist after os.fork() in the child process.
- Issue #14794: Fix slice.indices to return correct results for huge values,
rather than raising OverflowError.
- Issue #15001: fix segfault on "del sys.modules['__main__']". Patch by Victor
Stinner.
- Issue #8271: the utf-8 decoder now outputs the correct number of U+FFFD
characters when used with the 'replace' error handler on invalid utf-8
sequences. Patch by Serhiy Storchaka, tests by Ezio Melotti.
- Issue #5765: Apply a hard recursion limit in the compiler instead of
blowing the stack and segfaulting. Initial patch by Andrea Griffini.
- Issue #16402: When slicing a range, fix shadowing of exceptions from
__index__.
- Issue #16336: fix input checking in the surrogatepass error handler.
Patch by Serhiy Storchaka.
- Issue #8401: assigning an int to a bytearray slice (e.g. b[3:4] = 5) now
raises an error.
- Issue #7317: Display full tracebacks when an error occurs asynchronously.
Patch by Alon Horev with update by Alexey Kachayev.
- Issue #16309: Make PYTHONPATH="" behavior the same as if PYTHONPATH
not set at all.
- Issue #10189: Improve the error reporting of SyntaxErrors related to global
and nonlocal statements.
- Fix segfaults on setting __qualname__ on builtin types and attempting to
delete it on any type.
- Issue #14625: Rewrite the UTF-32 decoder. It is now 3x to 4x faster. Patch
written by Serhiy Storchaka.
- Issue #16345: Fix an infinite loop when ``fromkeys`` on a dict subclass
received a nonempty dict from the constructor.
- Issue #16271: Fix strange bugs that resulted from __qualname__ appearing in a
class's __dict__ and on type.
- Issue #12805: Make bytes.join and bytearray.join faster when the separator
is empty. Patch by Serhiy Storchaka.
- Issue #6074: Ensure cached bytecode files can always be updated by the
user that created them, even when the source file is read-only.
- Issue #15958: bytes.join and bytearray.join now accept arbitrary buffer
objects.
- Issue #14783: Improve int() docstring and switch docstrings for str(),
range(), and slice() to use multi-line signatures.
- Issue #16160: Subclass support now works for types.SimpleNamespace.
- Upgrade Unicode data (UCD) to version 6.2.
- Issue #15379: Fix passing of non-BMP characters as integers for the charmap
decoder (already working as unicode strings). Patch by Serhiy Storchaka.
- Issue #15144: Fix possible integer overflow when handling pointers as integer
values, by using `Py_uintptr_t` instead of `size_t`. Patch by Serhiy
Storchaka.
- Issue #15965: Explicitly cast `AT_FDCWD` as (int). Required on Solaris 10
(which defines `AT_FDCWD` as ``0xffd19553``), harmless on other platforms.
- Issue #15839: Convert SystemErrors in `super()` to RuntimeErrors.
- Issue #15448: Buffered IO now frees the buffer when closed, instead
of when deallocating.
- Issue #15846: Fix SystemError which happened when using `ast.parse()` in an
exception handler on code with syntax errors.
- Issue #15897: zipimport.c doesn't check return value of fseek().
Patch by Felipe Cruz.
- Issue #15801: Make sure mappings passed to '%' formatting are actually
subscriptable.
- Issue #15111: __import__ should propagate ImportError when raised as a
side-effect of a module triggered from using fromlist.
- Issue #15022: Add pickle and comparison support to types.SimpleNamespace.
Library
-------
......@@ -1081,504 +1312,50 @@ Library
- Issue #17487: The wave getparams method now returns a namedtuple rather than
a plain tuple.
- Issue #17675: socket repr() provides local and remote addresses (if any).
Patch by Giampaolo Rodola'
- Issue #17093: Make the ABCs in importlib.abc provide default values or raise
reasonable exceptions for their methods to make them more amenable to super()
calls.
- Issue #17566: Make importlib.abc.Loader.module_repr() optional instead of an
abstractmethod and raising NotImplementedError so as to be ignored by default.
- Issue #17678: Remove the use of deprecated method in http/cookiejar.py.
Changing the usage of get_origin_req_host() to origin_req_host.
- Issue #17666: Fix reading gzip files with an extra field.
- Issue #16475: Support object instancing, recursion and interned strings
in marshal
- Issue #17502: Process DEFAULT values in mock side_effect that returns iterator.
- Issue #16795: On the ast.arguments object, unify vararg with varargannotation
and kwarg and kwargannotation. Change the column offset of ast.Attribute to be
at the attribute name.
- Issue #17434: Properly raise a SyntaxError when a string occurs between future
imports.
- Issue #17117: Import and @importlib.util.set_loader now set __loader__ when
it has a value of None or the attribute doesn't exist.
- Issue #17032: The "global" in the "NameError: global name 'x' is not defined"
error message has been removed. Patch by Ram Rachum.
- Issue #18080: When building a C extension module on OS X, if the compiler
is overriden with the CC environment variable, use the new compiler as
the default for linking if LDSHARED is not also overriden. This restores
Distutils behavior introduced in 3.2.3 and inadvertently dropped in 3.3.0.
- Issue #18113: Fixed a refcount leak in the curses.panel module's
set_userptr() method. Reported by Atsuo Ishimoto.
- Implement PEP 443 "Single-dispatch generic functions".
- Implement PEP 435 "Adding an Enum type to the Python standard library".
Tests
-----
- Issue #1666318: Add a test that shutil.copytree() retains directory
permissions. Patch by Catherine Devlin.
- Issue #18273: move the tests in Lib/test/json_tests to Lib/test/test_json
and make them discoverable by unittest. Patch by Zachary Ware.
- Fix a fcntl test case on KFreeBSD, Debian #708653 (Petr Salinger).
- Issue #18396: Fix spurious test failure in test_signal on Windows when
faulthandler is enabled (Patch by Jeremy Kloth)
- Issue #17046: Fix broken test_executable_without_cwd in test_subprocess.
- Issue #15415: Add new temp_dir() and change_cwd() context managers to
test.support, and refactor temp_cwd() to use them. Patch by Chris Jerdonek.
- Issue #15494: test.support is now a package rather than a module (Initial
patch by Indra Talip)
- Issue #17944: test_zipfile now discoverable and uses subclassing to
generate tests for different compression types. Fixed a bug with skipping
some tests due to use of exhausted iterators.
- Issue #18266: test_largefile now works with unittest test discovery and
supports running only selected tests. Patch by Zachary Ware.
- Issue #17767: test_locale now works with unittest test discovery.
Original patch by Zachary Ware.
- Issue #18375: Assume --randomize when --randseed is used for running the
testsuite.
- Issue #11185: Fix test_wait4 under AIX. Patch by Sébastien Sablé.
- Issue #18207: Fix test_ssl for some versions of OpenSSL that ignore seconds
in ASN1_TIME fields.
- Issue #18094: test_uuid no more reports skipped tests as passed.
- Issue #17992: Add timeouts to asyncore and asynchat tests so that they won't
accidentally hang.
- Issue #17833: Fix test_gdb failures seen on machines where debug symbols
for glibc are available (seen on PPC64 Linux).
- Issue #7855: Add tests for ctypes/winreg for issues found in IronPython.
Initial patch by Dino Viehland.
- Issue #11078: test___all__ now checks for duplicates in __all__.
Initial patch by R. David Murray.
- Issue #17712: Fix test_gdb failures on Ubuntu 13.04.
- Issue #17835: Fix test_io when the default OS pipe buffer size is larger
than one million bytes.
- Issue #17065: Use process-unique key for winreg tests to avoid failures if
test is run multiple times in parallel (eg: on a buildbot host).
- Issue #12820: add tests for the xml.dom.minicompat module.
Patch by John Chandler and Phil Connell.
- Issue #17691: test_univnewlines now works with unittest test discovery.
Patch by Zachary Ware.
- Issue #17790: test_set now works with unittest test discovery.
Patch by Zachary Ware.
- Issue #17789: test_random now works with unittest test discovery.
Patch by Zachary Ware.
- Issue #17779: test_osx_env now works with unittest test discovery.
Patch by Zachary Ware.
- Issue #17766: test_iterlen now works with unittest test discovery.
Patch by Zachary Ware.
- Issue #17690: test_time now works with unittest test discovery.
Patch by Zachary Ware.
- Issue #17692: test_sqlite now works with unittest test discovery.
Patch by Zachary Ware.
- Issue #11995: test_pydoc doesn't import all sys.path modules anymore.
Documentation
-------------
- Issue #17701: Improving strftime documentation.
- Issue #18440: Clarify that `hash()` can truncate the value returned from an
object's custom `__hash__()` method.
- Issue #17844: Add links to encoders and decoders for bytes-to-bytes codecs.
- Issue #14097: improve the "introduction" page of the tutorial.
- Issue #17977: The documentation for the cadefault argument's default value
in urllib.request.urlopen() is fixed to match the code.
- Issue #15940: Specify effect of locale on time functions.
- Issue #6696: add documentation for the Profile objects, and improve
profile/cProfile docs. Patch by Tom Pinckney.
C-API
-----
- Issue #18351: Fix various issues in a function in importlib provided to help
PyImport_ExecCodeModuleWithPathnames() (and thus by extension PyImport_ExecCodeModule() and PyImport_ExecCodeModuleEx()).
- Issue #9369: The types of `char*` arguments of PyObject_CallFunction() and
PyObject_CallMethod() now changed to `const char*`. Based on patches by
Jörg Müller and Lars Buitinck.
- Issue #17206: Py_CLEAR(), Py_DECREF(), Py_XINCREF() and Py_XDECREF() now
expand their arguments once instead of multiple times. Patch written by Illia
Polosukhin.
- Issue #17522: Add the PyGILState_Check() API.
- Issue #17327: Add PyDict_SetDefault.
IDLE
----
- Issue #18429: Format / Format Paragraph, now works when comment blocks
are selected. As with text blocks, this works best when the selection
only includes complete lines.
- Issue #18226: Add docstrings and unittests for FormatParagraph.py.
Original patches by Todd Rovito and Phil Webster.
- Issue #18279: Format - Strip trailing whitespace no longer marks a file as
changed when it has not been changed. This fix followed the addition of a
test file originally written by Phil Webster (the issue's main goal).
- Issue #7136: In the Idle File menu, "New Window" is renamed "New File".
Patch by Tal Einat, Roget Serwy, and Todd Rovito.
- Remove dead imports of imp.
- Issue #18196: Avoid displaying spurious SystemExit tracebacks.
- Issue #5492: Avoid traceback when exiting IDLE caused by a race condition.
- Issue #17511: Keep IDLE find dialog open after clicking "Find Next".
Original patch by Sarah K.
- Issue #18055: Move IDLE off of imp and on to importlib.
- Issue #15392: Create a unittest framework for IDLE.
Initial patch by Rajagopalasarma Jayakrishnan.
See Lib/idlelib/idle_test/README.txt for how to run Idle tests.
- Issue #14146: Highlight source line while debugging on Windows.
- Issue #17838: Allow sys.stdin to be reassigned.
- Issue #13495: Avoid loading the color delegator twice in IDLE.
- Issue #17798: Allow IDLE to edit new files when specified on command line.
- Issue #14735: Update IDLE docs to omit "Control-z on Windows".
- Issue #17532: Always include Options menu for IDLE on OS X.
Patch by Guilherme Simões.
Windows
-------
- Issue #18569: The installer now adds .py to the PATHEXT variable when extensions
are registered. Patch by Paul Moore.
Build
-----
- Issue #16067: Add description into MSI file to replace installer's
temporary name.
- Issue #18257: Fix readlink usage in python-config. Install the python
version again on Darwin.
- Issue #18481: Add C coverage reporting with gcov and lcov. A new make target
"coverage-report" creates an instrumented Python build, runs unit tests
and creates a HTML. The report can be updated with "make coverage-lcov".
- Issue #17845: Clarified the message printed when some module are not built.
- Issue #18256: Compilation fix for recent AIX releases. Patch by
David Edelsohn.
- Issue #17547: In configure, explicitly pass -Wformat for the benefit for GCC
4.8.
- Issue #15172: Document NASM 2.10+ as requirement for building OpenSSL 1.0.1
on Windows.
Tools/Demos
-----------
- Issue #18817: Fix a resource warning in Lib/aifc.py demo. Patch by
Vajrasky Kok.
- Issue #18439: Make patchcheck work on Windows for ACKS, NEWS.
- Issue #18448: Fix a typo in Tools/demo/eiffel.py.
- Issue #18457: Fixed saving of formulas and complex numbers in
Tools/demo/ss1.py.
- Issue #18449: Make Tools/demo/ss1.py work again on Python 3. Patch by
Févry Thibault.
- Issue #12990: The "Python Launcher" on OSX could not launch python scripts
that have paths that include wide characters.
- Issue #17328: Fix possible refleak in dict.setdefault.
- Issue #17275: Corrected class name in init error messages of the C version of
BufferedWriter and BufferedRandom.
- Issue #7963: Fixed misleading error message that issued when object is
called without arguments.
- Issue #8745: Small speed up zipimport on Windows. Patch by Catalin Iacob.
- Issue #5308: Raise ValueError when marshalling too large object (a sequence
with size >= 2**31), instead of producing illegal marshal data.
- Issue #12983: Bytes literals with invalid \x escape now raise a SyntaxError
and a full traceback including line number.
- Issue #16967: In function definition, evaluate positional defaults before
keyword-only defaults.
- Issue #17173: Remove uses of locale-dependent C functions (isalpha() etc.)
in the interpreter.
- Issue #17137: When an Unicode string is resized, the internal wide character
string (wstr) format is now cleared.
- Issue #17043: The unicode-internal decoder no longer read past the end of
input buffer.
- Issue #17098: All modules now have __loader__ set even if they pre-exist the
bootstrapping of importlib.
- Issue #16979: Fix error handling bugs in the unicode-escape-decode decoder.
- Issue #16772: The base argument to the int constructor no longer accepts
floats, or other non-integer objects with an __int__ method. Objects
with an __index__ method are now accepted.
- Issue #10156: In the interpreter's initialization phase, unicode globals
are now initialized dynamically as needed.
- Issue #16980: Fix processing of escaped non-ascii bytes in the
unicode-escape-decode decoder.
- Issue #16975: Fix error handling bug in the escape-decode bytes decoder.
- Issue #14850: Now a charmap decoder treats U+FFFE as "undefined mapping"
in any mapping, not only in a string.
- Issue #16730: importlib.machinery.FileFinder now no longers raises an
exception when trying to populate its cache and it finds out the directory is
unreadable or has turned into a file. Reported and diagnosed by
David Pritchard.
- Issue #16906: Fix a logic error that prevented most static strings from being
cleared.
- Issue #11461: Fix the incremental UTF-16 decoder. Original patch by
Amaury Forgeot d'Arc.
- Issue #16856: Fix a segmentation fault from calling repr() on a dict with
a key whose repr raise an exception.
- Issue #16367: Fix FileIO.readall() on Windows for files larger than 2 GB.
- Issue #16761: Calling int() with base argument only now raises TypeError.
- Issue #16759: Support the full DWORD (unsigned long) range in Reg2Py
when retrieving a REG_DWORD value. This corrects functions like
winreg.QueryValueEx that may have been returning truncated values.
- Issue #14420: Support the full DWORD (unsigned long) range in Py2Reg
when passed a REG_DWORD value. Fixes OverflowError in winreg.SetValueEx.
- Issue #11939: Set the st_dev attribute of stat_result to allow Windows to
take advantage of the os.path.samefile/sameopenfile/samestat implementations
used by other platforms.
- Issue #16772: The int() constructor's second argument (base) no longer
accepts non integer values. Consistent with the behavior in Python 2.
- Issue #14470: Remove w9xpopen support per PEP 11.
- Issue #9856: Replace deprecation warning with raising TypeError
in object.__format__. Patch by Florent Xicluna.
- Issue #16597: In buffered and text IO, call close() on the underlying stream
if invoking flush() fails.
- Issue #16722: In the bytes() constructor, try to call __bytes__ on the
argument before __index__.
- Issue #16421: loading multiple modules from one shared object is now
handled correctly (previously, the first module loaded from that file
was silently returned). Patch by Václav Šmilauer.
- Issue #16602: When a weakref's target was part of a long deallocation
chain, the object could remain reachable through its weakref even though
its refcount had dropped to zero.
- Issue #16495: Remove extraneous NULL encoding check from bytes_decode().
- Issue #16619: Create NameConstant AST class to represent None, True, and False
literals. As a result, these constants are never loaded at runtime from
builtins.
- Issue #16455: On FreeBSD and Solaris, if the locale is C, the
ASCII/surrogateescape codec is now used, instead of the locale encoding, to
decode the command line arguments. This change fixes inconsistencies with
os.fsencode() and os.fsdecode() because these operating systems announces an
ASCII locale encoding, whereas the ISO-8859-1 encoding is used in practice.
- Issue #16562: Optimize dict equality testing. Patch by Serhiy Storchaka.
- Issue #16588: Silence unused-but-set warnings in Python/thread_pthread
- Issue #16592: stringlib_bytes_join doesn't raise MemoryError on allocation
failure.
- Issue #16546: Fix: ast.YieldFrom argument is now mandatory.
- Issue #16514: Fix regression causing a traceback when sys.path[0] is None
(actually, any non-string or non-bytes type).
- Issue #16306: Fix multiple error messages when unknown command line
parameters where passed to the interpreter. Patch by Hieu Nguyen.
- Issue #16215: Fix potential double memory free in str.replace(). Patch
by Serhiy Storchaka.
- Issue #16290: A float return value from the __complex__ special method is no
longer accepted in the complex() constructor.
- Issue #16416: On Mac OS X, operating system data are now always
encoded/decoded to/from UTF-8/surrogateescape, instead of the locale encoding
(which may be ASCII if no locale environment variable is set), to avoid
inconsistencies with os.fsencode() and os.fsdecode() functions which are
already using UTF-8/surrogateescape.
- Issue #16453: Fix equality testing of dead weakref objects.
- Issue #9535: Fix pending signals that have been received but not yet
handled by Python to not persist after os.fork() in the child process.
- Issue #14794: Fix slice.indices to return correct results for huge values,
rather than raising OverflowError.
- Issue #15001: fix segfault on "del sys.modules['__main__']". Patch by Victor
Stinner.
- Issue #8271: the utf-8 decoder now outputs the correct number of U+FFFD
characters when used with the 'replace' error handler on invalid utf-8
sequences. Patch by Serhiy Storchaka, tests by Ezio Melotti.
- Issue #5765: Apply a hard recursion limit in the compiler instead of
blowing the stack and segfaulting. Initial patch by Andrea Griffini.
- Issue #16402: When slicing a range, fix shadowing of exceptions from
__index__.
- Issue #16336: fix input checking in the surrogatepass error handler.
Patch by Serhiy Storchaka.
- Issue #8401: assigning an int to a bytearray slice (e.g. b[3:4] = 5) now
raises an error.
- Issue #7317: Display full tracebacks when an error occurs asynchronously.
Patch by Alon Horev with update by Alexey Kachayev.
- Issue #16309: Make PYTHONPATH="" behavior the same as if PYTHONPATH
not set at all.
- Issue #10189: Improve the error reporting of SyntaxErrors related to global
and nonlocal statements.
- Fix segfaults on setting __qualname__ on builtin types and attempting to
delete it on any type.
- Issue #14625: Rewrite the UTF-32 decoder. It is now 3x to 4x faster. Patch
written by Serhiy Storchaka.
- Issue #16345: Fix an infinite loop when ``fromkeys`` on a dict subclass
received a nonempty dict from the constructor.
- Issue #16271: Fix strange bugs that resulted from __qualname__ appearing in a
class's __dict__ and on type.
- Issue #12805: Make bytes.join and bytearray.join faster when the separator
is empty. Patch by Serhiy Storchaka.
- Issue #6074: Ensure cached bytecode files can always be updated by the
user that created them, even when the source file is read-only.
- Issue #15958: bytes.join and bytearray.join now accept arbitrary buffer
objects.
- Issue #17675: socket repr() provides local and remote addresses (if any).
Patch by Giampaolo Rodola'
- Issue #14783: Improve int() docstring and switch docstrings for str(),
range(), and slice() to use multi-line signatures.
- Issue #17093: Make the ABCs in importlib.abc provide default values or raise
reasonable exceptions for their methods to make them more amenable to super()
calls.
- Issue #16160: Subclass support now works for types.SimpleNamespace.
- Issue #17566: Make importlib.abc.Loader.module_repr() optional instead of an
abstractmethod and raising NotImplementedError so as to be ignored by default.
- Upgrade Unicode data (UCD) to version 6.2.
- Issue #17678: Remove the use of deprecated method in http/cookiejar.py.
Changing the usage of get_origin_req_host() to origin_req_host.
- Issue #15379: Fix passing of non-BMP characters as integers for the charmap
decoder (already working as unicode strings). Patch by Serhiy Storchaka.
- Issue #17666: Fix reading gzip files with an extra field.
- Issue #15144: Fix possible integer overflow when handling pointers as integer
values, by using `Py_uintptr_t` instead of `size_t`. Patch by Serhiy
Storchaka.
- Issue #16475: Support object instancing, recursion and interned strings
in marshal
- Issue #15965: Explicitly cast `AT_FDCWD` as (int). Required on Solaris 10
(which defines `AT_FDCWD` as ``0xffd19553``), harmless on other platforms.
- Issue #17502: Process DEFAULT values in mock side_effect that returns iterator.
- Issue #15839: Convert SystemErrors in `super()` to RuntimeErrors.
- Issue #16795: On the ast.arguments object, unify vararg with varargannotation
and kwarg and kwargannotation. Change the column offset of ast.Attribute to be
at the attribute name.
- Issue #15448: Buffered IO now frees the buffer when closed, instead
of when deallocating.
- Issue #17434: Properly raise a SyntaxError when a string occurs between future
imports.
- Issue #15846: Fix SystemError which happened when using `ast.parse()` in an
exception handler on code with syntax errors.
- Issue #17117: Import and @importlib.util.set_loader now set __loader__ when
it has a value of None or the attribute doesn't exist.
- Issue #15897: zipimport.c doesn't check return value of fseek().
Patch by Felipe Cruz.
- Issue #17032: The "global" in the "NameError: global name 'x' is not defined"
error message has been removed. Patch by Ram Rachum.
- Issue #15801: Make sure mappings passed to '%' formatting are actually
subscriptable.
- Issue #18080: When building a C extension module on OS X, if the compiler
is overriden with the CC environment variable, use the new compiler as
the default for linking if LDSHARED is not also overriden. This restores
Distutils behavior introduced in 3.2.3 and inadvertently dropped in 3.3.0.
- Issue #15111: __import__ should propagate ImportError when raised as a
side-effect of a module triggered from using fromlist.
- Issue #18113: Fixed a refcount leak in the curses.panel module's
set_userptr() method. Reported by Atsuo Ishimoto.
- Issue #15022: Add pickle and comparison support to types.SimpleNamespace.
- Implement PEP 443 "Single-dispatch generic functions".
Library
-------
- Implement PEP 435 "Adding an Enum type to the Python standard library".
- Issue #15596: Faster pickling of unicode strings.
......@@ -2288,6 +2065,48 @@ Library
IDLE
----
- Issue #18429: Format / Format Paragraph, now works when comment blocks
are selected. As with text blocks, this works best when the selection
only includes complete lines.
- Issue #18226: Add docstrings and unittests for FormatParagraph.py.
Original patches by Todd Rovito and Phil Webster.
- Issue #18279: Format - Strip trailing whitespace no longer marks a file as
changed when it has not been changed. This fix followed the addition of a
test file originally written by Phil Webster (the issue's main goal).
- Issue #7136: In the Idle File menu, "New Window" is renamed "New File".
Patch by Tal Einat, Roget Serwy, and Todd Rovito.
- Remove dead imports of imp.
- Issue #18196: Avoid displaying spurious SystemExit tracebacks.
- Issue #5492: Avoid traceback when exiting IDLE caused by a race condition.
- Issue #17511: Keep IDLE find dialog open after clicking "Find Next".
Original patch by Sarah K.
- Issue #18055: Move IDLE off of imp and on to importlib.
- Issue #15392: Create a unittest framework for IDLE.
Initial patch by Rajagopalasarma Jayakrishnan.
See Lib/idlelib/idle_test/README.txt for how to run Idle tests.
- Issue #14146: Highlight source line while debugging on Windows.
- Issue #17838: Allow sys.stdin to be reassigned.
- Issue #13495: Avoid loading the color delegator twice in IDLE.
- Issue #17798: Allow IDLE to edit new files when specified on command line.
- Issue #14735: Update IDLE docs to omit "Control-z on Windows".
- Issue #17532: Always include Options menu for IDLE on OS X.
Patch by Guilherme Simões.
- Issue #17585: Fixed IDLE regression. Now closes when using exit() or quit().
- Issue #17657: Show full Tk version in IDLE's about dialog.
......@@ -2341,6 +2160,91 @@ IDLE
Tests
-----
- Issue #1666318: Add a test that shutil.copytree() retains directory
permissions. Patch by Catherine Devlin.
- Issue #18273: move the tests in Lib/test/json_tests to Lib/test/test_json
and make them discoverable by unittest. Patch by Zachary Ware.
- Fix a fcntl test case on KFreeBSD, Debian #708653 (Petr Salinger).
- Issue #18396: Fix spurious test failure in test_signal on Windows when
faulthandler is enabled (Patch by Jeremy Kloth)
- Issue #17046: Fix broken test_executable_without_cwd in test_subprocess.
- Issue #15415: Add new temp_dir() and change_cwd() context managers to
test.support, and refactor temp_cwd() to use them. Patch by Chris Jerdonek.
- Issue #15494: test.support is now a package rather than a module (Initial
patch by Indra Talip)
- Issue #17944: test_zipfile now discoverable and uses subclassing to
generate tests for different compression types. Fixed a bug with skipping
some tests due to use of exhausted iterators.
- Issue #18266: test_largefile now works with unittest test discovery and
supports running only selected tests. Patch by Zachary Ware.
- Issue #17767: test_locale now works with unittest test discovery.
Original patch by Zachary Ware.
- Issue #18375: Assume --randomize when --randseed is used for running the
testsuite.
- Issue #11185: Fix test_wait4 under AIX. Patch by Sébastien Sablé.
- Issue #18207: Fix test_ssl for some versions of OpenSSL that ignore seconds
in ASN1_TIME fields.
- Issue #18094: test_uuid no more reports skipped tests as passed.
- Issue #17992: Add timeouts to asyncore and asynchat tests so that they won't
accidentally hang.
- Issue #17833: Fix test_gdb failures seen on machines where debug symbols
for glibc are available (seen on PPC64 Linux).
- Issue #7855: Add tests for ctypes/winreg for issues found in IronPython.
Initial patch by Dino Viehland.
- Issue #11078: test___all__ now checks for duplicates in __all__.
Initial patch by R. David Murray.
- Issue #17712: Fix test_gdb failures on Ubuntu 13.04.
- Issue #17835: Fix test_io when the default OS pipe buffer size is larger
than one million bytes.
- Issue #17065: Use process-unique key for winreg tests to avoid failures if
test is run multiple times in parallel (eg: on a buildbot host).
- Issue #12820: add tests for the xml.dom.minicompat module.
Patch by John Chandler and Phil Connell.
- Issue #17691: test_univnewlines now works with unittest test discovery.
Patch by Zachary Ware.
- Issue #17790: test_set now works with unittest test discovery.
Patch by Zachary Ware.
- Issue #17789: test_random now works with unittest test discovery.
Patch by Zachary Ware.
- Issue #17779: test_osx_env now works with unittest test discovery.
Patch by Zachary Ware.
- Issue #17766: test_iterlen now works with unittest test discovery.
Patch by Zachary Ware.
- Issue #17690: test_time now works with unittest test discovery.
Patch by Zachary Ware.
- Issue #17692: test_sqlite now works with unittest test discovery.
Patch by Zachary Ware.
- Issue #11995: test_pydoc doesn't import all sys.path modules anymore.
- Issue #17448: test_sax now skips if there are no xml parsers available
instead of raising an ImportError.
......@@ -2479,6 +2383,27 @@ Tests
Build
-----
- Issue #16067: Add description into MSI file to replace installer's
temporary name.
- Issue #18257: Fix readlink usage in python-config. Install the python
version again on Darwin.
- Issue #18481: Add C coverage reporting with gcov and lcov. A new make target
"coverage-report" creates an instrumented Python build, runs unit tests
and creates a HTML. The report can be updated with "make coverage-lcov".
- Issue #17845: Clarified the message printed when some module are not built.
- Issue #18256: Compilation fix for recent AIX releases. Patch by
David Edelsohn.
- Issue #17547: In configure, explicitly pass -Wformat for the benefit for GCC
4.8.
- Issue #15172: Document NASM 2.10+ as requirement for building OpenSSL 1.0.1
on Windows.
- Issue #17591: Use lowercase filenames when including Windows header files.
Patch by Roumen Petrov.
......@@ -2551,6 +2476,22 @@ Build
C-API
-----
- Issue #18351: Fix various issues in a function in importlib provided to help
PyImport_ExecCodeModuleWithPathnames() (and thus by extension
PyImport_ExecCodeModule() and PyImport_ExecCodeModuleEx()).
- Issue #9369: The types of `char*` arguments of PyObject_CallFunction() and
PyObject_CallMethod() now changed to `const char*`. Based on patches by
Jörg Müller and Lars Buitinck.
- Issue #17206: Py_CLEAR(), Py_DECREF(), Py_XINCREF() and Py_XDECREF() now
expand their arguments once instead of multiple times. Patch written by Illia
Polosukhin.
- Issue #17522: Add the PyGILState_Check() API.
- Issue #17327: Add PyDict_SetDefault.
- Issue #16881: Fix Py_ARRAY_LENGTH macro for GCC < 3.1.
- Issue #15422: Get rid of PyCFunction_New macro. Use PyCFunction_NewEx
......@@ -2569,6 +2510,23 @@ C-API
Documentation
-------------
- Issue #17701: Improving strftime documentation.
- Issue #18440: Clarify that `hash()` can truncate the value returned from an
object's custom `__hash__()` method.
- Issue #17844: Add links to encoders and decoders for bytes-to-bytes codecs.
- Issue #14097: improve the "introduction" page of the tutorial.
- Issue #17977: The documentation for the cadefault argument's default value
in urllib.request.urlopen() is fixed to match the code.
- Issue #15940: Specify effect of locale on time functions.
- Issue #6696: add documentation for the Profile objects, and improve
profile/cProfile docs. Patch by Tom Pinckney.
- Issue #15940: Specify effect of locale on time functions.
- Issue 17538: Document XML vulnerabilties
......@@ -2662,6 +2620,22 @@ Documentation
Tools/Demos
-----------
- Issue #18817: Fix a resource warning in Lib/aifc.py demo. Patch by
Vajrasky Kok.
- Issue #18439: Make patchcheck work on Windows for ACKS, NEWS.
- Issue #18448: Fix a typo in Tools/demo/eiffel.py.
- Issue #18457: Fixed saving of formulas and complex numbers in
Tools/demo/ss1.py.
- Issue #18449: Make Tools/demo/ss1.py work again on Python 3. Patch by
Févry Thibault.
- Issue #12990: The "Python Launcher" on OSX could not launch python scripts
that have paths that include wide characters.
- Issue #15239: Make mkstringprep.py work again on Python 3.
- Issue #17028: Allowed Python arguments to be supplied to the Windows
......@@ -2694,6 +2668,12 @@ Tools/Demos
- Issue #13301: use ast.literal_eval() instead of eval() in Tools/i18n/msgfmt.py
Patch by Serhiy Storchaka.
Windows
-------
- Issue #18569: The installer now adds .py to the PATHEXT variable when extensions
are registered. Patch by Paul Moore.
What's New in Python 3.3.0?
===========================
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