| Age | Commit message (Collapse) | Author | Files | Lines |
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2.7.17:
Escape the server title of :class:`DocXMLRPCServer.DocXMLRPCServer` when
rendering the document page as HTML.
Update vendorized expat library version to 2.2.8, which resolves
CVE-2019-15903.
Updated OpenSSL to 1.0.2s in Windows installer
Don't set cookie for a request when the request path is a prefix match of
the cookie's path attribute but doesn't end with "/".
Don't send cookies of domain A without Domain attribute to domain B when
domain A is a suffix match of domain B while using a cookiejar with
:class:`cookielib.DefaultCookiePolicy` policy.
Fix parsing of invalid email addresses with more than one ``@`` (e.g.
a@b@c.com.) to not return the part before 2nd ``@`` as valid email address.
Fixes mishandling of pre-normalization characters in urlsplit().
Address CVE-2019-9740 by disallowing URL paths with embedded whitespace or
control characters through into the underlying http client request. Such
potentially malicious header injection URLs now cause an httplib.InvalidURL
exception to be raised.
Changes urlsplit() to raise ValueError when the URL contains characters that
decompose under IDNA encoding (NFKC-normalization) into characters that
affect how the URL is parsed.
CVE-2019-9948: Avoid file reading by disallowing ``local-file://`` and
``local_file://`` URL schemes in :func:`urllib.urlopen`,
:meth:`urllib.URLopener.open` and :meth:`urllib.URLopener.retrieve`.
Fix race in PyThread_release_lock that was leading to memory corruption and
deadlocks. The fix applies to POSIX systems where Python locks are
implemented with mutex and condition variable because POSIX semaphores are
either not provided, or are known to be broken. One particular example of
such system is macOS.
valgrind: suppress a false alarm in memory leak checks. _PyWarnings_Init()
only allocates memory once at startup but it is not released at exit. Ignore
this issue to be able to catch other bugs more easily.
Fix possible overflow in ``wrap_lenfunc()`` when ``sizeof(long) <
sizeof(Py_ssize_t)`` (e.g., 64-bit Windows).
pymalloc returns memory blocks aligned by 16 bytes, instead of 8 bytes, on
64-bit platforms to conform x86-64 ABI. Recent compilers assume this
alignment more often.
Fix signed integer overflow in _ctypes.c's ``PyCArrayType_new()``.
Fix a possible double ``PyMem_FREE()`` due to tokenizer.c's ``tok_nextc()``.
Fix a possible reference leak in :func:`itertools.count`.
PyOS_StdioReadline() no longer leaks memory when realloc() fails.
Fix an unlikely memory leak on conversion from string to float in the
function ``_Py_dg_strtod()`` used by ``float(str)``, ``complex(str)``,
:func:`pickle.load`, :func:`marshal.load`, etc.
Fix use of uninitialized memory in cPickle when reading a truncated pickle
from a file object.
Clarified Doc string for builtin filter function. 2nd Argument can be any
iterable.
Allow the rare code that wants to send invalid http requests from the
`http.client` library a way to do so. The fixes for bpo-30458 led to
breakage for some projects that were relying on this ability to test their
own behavior in the face of bad requests.
Fix a memory leak in comparison of :class:`sqlite3.Row` objects.
_hashlib no longer calls obsolete OpenSSL initialization function with
OpenSSL 1.1.0+.
Fixed a crash in the :func:`tee` iterator when re-enter it. RuntimeError is
now raised in this case.
Fix C compiler warning caused by distutils.ccompiler.CCompiler.has_function.
Fix file descriptors transfer in multiprocessing on FreeBSD: use
``CMSG_SPACE()`` rather than ``CMSG_LEN()``; see :rfc:`3542`.
Update wheels bundled with ensurepip (pip 19.2.3 and setuptools 41.2.0)
Update vendorized expat version to 2.2.7.
:func:`urlparse.urlsplit` error message for invalid ``netloc`` according to
NFKC normalization is now a :class:`str` string, rather than a
:class:`unicode` string, to prevent error when displaying the error.
:meth:`msilib.Directory.start_component()` no longer fails if *keyfile* is
not ``None``.
Rename the :meth:`test_ascii_replace` to :meth:`test_ascii_strict`.
Fix :mod:`distutils.sysconfig` if :data:`sys.executable` is ``None`` or an
empty string: use :func:`os.getcwd` to initialize ``project_base``. Fix
also the distutils build command: don't use :data:`sys.executable` if it is
``None`` or an empty string.
Fix buffer overflow in :meth:`~socket.socket.send` and
:meth:`~socket.socket.sendall` methods of :func:`socket.socket` for data
larger than 2 GiB.
Fix a possible reference leak in the json module.
Fix a possible reference leak in the io module.
Fix two possible reference leaks in the hotshot module.
Fix ``CFLAGS`` in ``customize_compiler()`` of ``distutils.sysconfig``: when
the ``CFLAGS`` environment variable is defined, don't override ``CFLAGS``
variable with the ``OPT`` variable anymore.
Update ensurepip to install pip 19.0.3 and setuptools 40.8.0.
Fix linuxaudiodev.linux_audio_device() error handling: close the internal
file descriptor if it fails to open the device.
Fix memory leak in ctypes POINTER handling of large values.
Fix two unlikely reference leaks in _hashopenssl. The leaks only occur in
out-of-memory cases.
Resolve potential name clash with libm's sinpi().
Fix ``setup.py check --restructuredtext`` for files containing ``include``
directives.
Fix PyList_GetItem index description to include 0.
Replace the dead link to the Tkinter 8.5 reference by John Shipman, New
Mexico Tech, with a link to the archive.org copy.
Improve the examples in the "How do I convert a number to string?" question
of the "Programming" section of the FAQ.
Fix documentation build for sphinx<1.6.
Explicitly set master_doc variable in conf.py for compliance with Sphinx 2.0
Add glossary entry for 'magic method'.
Fix test_wsgiref.testEnviron() to no longer depend on the environment
variables (don't fail if "X" variable is set).
Add --cleanup option to python3 -m test to remove ``test_python_*``
directories of previous failed jobs. Add "make cleantest" to run ``python3
-m test --cleanup``.
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.
Update Lib/test/selfsigned_pythontestdotnet.pem to match
self-signed.pythontest.net's new TLS certificate.
Skip specific nntplib and ssl networking tests when they would otherwise
fail due to a modern OS or distro with a default OpenSSL policy of rejecting
connections to servers with weak certificates or disabling TLS below
TLSv1.2.
Fix reference leak hunting in regrtest: compute also deltas (of reference
count and file descriptor count) during warmup, to ensure that everything is
initialized before starting to hunt reference leaks.
test_posix.PosixUidGidTests: add tests for invalid uid/gid type (str).
Add test.support.TEST_HTTP_URL and replace references of
http://www.example.com by this new constant.
Avoid test_ttk_guionly ComboboxTest failure with macOS Cocoa Tk.
Re-enable missing widget testcases in test_ttk_guionly.
Fix ``test_default_ecdh_curve`` when TLSv1.3 is enabled by default.
In Solaris family, we must be sure to use ``-D_REENTRANT``.
Fix detection of the bind_textdomain_codeset function for building gettext
support into the locale module.
``make tags`` and ``make TAGS`` now also parse ``Modules/_io/*.c`` and
``Modules/_io/*.h``.
Fix SSL module build with OpenSSL 1.1.0
Updates bundled OpenSSL to 1.0.2t
Include the ``FORMAT_MESSAGE_IGNORE_INSERTS`` flag in ``FormatMessageW()``
calls.
Update Windows builds to use SQLite 3.28.0.
Correctly handle string length in ``msilib.SummaryInfo.GetProperty()`` to
prevent it from truncating the last character.
Updated OpenSSL to 1.0.2t in macOS installer for 2.7.x.
When building 2.7 on macOS without system header files installed in
``/usr/include``, a few extension modules dependent on system-supplied
third-party libraries were not being built, most notably zlib.
Update macOS installer to use SQLite 3.28.0.
Updated OpenSSL to 1.0.2s in macOS installer.
Support building Python on macOS without /usr/include installed. As of macOS
10.14, system header files are only available within an SDK provided by
either the Command Line Tools or the Xcode app.
Properly 'attach' search dialogs to their main window so that they behave
like other dialogs and do not get hidden behind their main window.
When saving a file, call os.fsync() so bits are flushed to e.g. USB drive.
2to3 now works when run from a zipped standard library.
Fix the argument handling in Tools/scripts/lll.py.
Fix the cast on error in :c:func:`PyLong_AsUnsignedLongLongMask()`.
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Python 2.7.16 is a bugfix release in the Python 2.7 series.
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Upstream changelog, slightly reordered:
Security
--------
- bpo-31530: Fixed crashes when iterating over a file on multiple threads.
This resolves CVE-2018-1000030.
- bpo-32997: A regex in fpformat was vulnerable to catastrophic
backtracking. This regex was a potential DOS vector (REDOS). Based on
typical uses of fpformat the risk seems low. The regex has been refactored
and is now safe. Patch by Jamie Davis.
- bpo-32981: Regexes in difflib and poplib were vulnerable to catastrophic
backtracking. These regexes formed potential DOS vectors (REDOS). They
have been refactored. This resolves CVE-2018-1060 and CVE-2018-1061. Patch
by Jamie Davis.
- bpo-31339: Rewrite time.asctime() and time.ctime(). Backport and adapt the
_asctime() function from the master branch to not depend on the
implementation of asctime() and ctime() from the external C library. This
change fixes a bug when Python is run using the musl C library.
- bpo-30730: Prevent environment variables injection in subprocess on
Windows. Prevent passing other environment variables and command
arguments.
- bpo-30694: Upgrade expat copy from 2.2.0 to 2.2.1 to get fixes of multiple
security vulnerabilities including: CVE-2017-9233 (External entity
infinite loop DoS), CVE-2016-9063 (Integer overflow, re-fix),
CVE-2016-0718 (Fix regression bugs from 2.2.0's fix to CVE-2016-0718) and
CVE-2012-0876 (Counter hash flooding with SipHash). Note: the
CVE-2016-5300 (Use os- specific entropy sources like getrandom) doesn't
impact Python, since Python already gets entropy from the OS to set the
expat secret using ``XML_SetHashSalt()``.
- bpo-30500: Fix urllib.splithost() to correctly parse fragments. For
example, ``splithost('//127.0.0.1#@evil.com/')`` now correctly returns the
``127.0.0.1`` host, instead of treating ``@evil.com`` as the host in an
authentification (``login@host``).
- bpo-29591: Update expat copy from 2.1.1 to 2.2.0 to get fixes of
CVE-2016-0718 and CVE-2016-4472. See
https://sourceforge.net/p/expat/bugs/537/ for more information.
Core and Builtins
-----------------
- bpo-33374: Tweak the definition of PyGC_Head, so compilers do not believe
it is always 16-byte aligned on x86. This prevents crashes with more
aggressive optimizations present in GCC 8.
- bpo-33026: Fixed jumping out of "with" block by setting f_lineno.
- bpo-17288: Prevent jumps from 'return' and 'exception' trace events.
- bpo-18533: ``repr()`` on a dict containing its own ``viewvalues()`` or
``viewitems()`` no longer raises ``RuntimeError``. Instead, use ``...``,
as for other recursive structures. Patch by Ben North.
- bpo-10544: Yield expressions are now deprecated in comprehensions and
generator expressions when checking Python 3 compatibility. They are still
permitted in the definition of the outermost iterable, as that is
evaluated directly in the enclosing scope.
- bpo-32137: The repr of deeply nested dict now raises a RecursionError
instead of crashing due to a stack overflow.
- bpo-20047: Bytearray methods partition() and rpartition() now accept only
bytes-like objects as separator, as documented. In particular they now
raise TypeError rather of returning a bogus result when an integer is
passed as a separator.
- bpo-31733: Add a new PYTHONSHOWREFCOUNT environment variable. In debug
mode, Python now only print the total reference count if
PYTHONSHOWREFCOUNT is set.
- bpo-31692: Add a new PYTHONSHOWALLOCCOUNT environment variable. When
Python is compiled with COUNT_ALLOCS, PYTHONSHOWALLOCCOUNT now has to be
set to dump allocation counts into stderr on shutdown. Moreover,
allocations statistics are now dumped into stderr rather than stdout.
- bpo-31478: Prevent unwanted behavior in `_random.Random.seed()` in case
the argument has a bad ``__abs__()`` method. Patch by Oren Milman.
- bpo-31490: Fix an assertion failure in `ctypes` class definition, in case
the class has an attribute whose name is specified in ``_anonymous_`` but
not in ``_fields_``. Patch by Oren Milman.
- bpo-31411: Raise a TypeError instead of SystemError in case
warnings.onceregistry is not a dictionary. Patch by Oren Milman.
- bpo-31343: Include sys/sysmacros.h for major(), minor(), and makedev().
GNU C libray plans to remove the functions from sys/types.h.
- bpo-31311: Fix a crash in the ``__setstate__()`` method of
`ctypes._CData`, in case of a bad ``__dict__``. Patch by Oren Milman.
- bpo-31243: Fix a crash in some methods of `io.TextIOWrapper`, when the
decoder's state is invalid. Patch by Oren Milman.
- bpo-31095: Fix potential crash during GC caused by ``tp_dealloc`` which
doesn't call ``PyObject_GC_UnTrack()``.
- bpo-30657: Fixed possible integer overflow in PyString_DecodeEscape. Patch
by Jay Bosamiya.
- bpo-27945: Fixed various segfaults with dict when input collections are
mutated during searching, inserting or comparing. Based on patches by
Duane Griffin and Tim Mitchell.
- bpo-25794: Fixed type.__setattr__() and type.__delattr__() for non-
interned or unicode attribute names. Based on patch by Eryk Sun.
- bpo-29935: Fixed error messages in the index() method of tuple and list
when pass indices of wrong type.
- bpo-28598: Support __rmod__ for subclasses of str being called before
str.__mod__. Patch by Martijn Pieters.
- bpo-29602: Fix incorrect handling of signed zeros in complex constructor
for complex subclasses and for inputs having a __complex__ method. Patch
by Serhiy Storchaka.
- bpo-29347: Fixed possibly dereferencing undefined pointers when creating
weakref objects.
- bpo-14376: Allow sys.exit to accept longs as well as ints. Patch by Gareth
Rees.
- bpo-29028: Fixed possible use-after-free bugs in the subscription of the
buffer object with custom index object.
- bpo-29145: Fix overflow checks in string, bytearray and unicode. Patch by
jan matejek and Xiang Zhang.
- bpo-28932: Do not include <sys/random.h> if it does not exist.
Library
-------
- bpo-33096: Allow ttk.Treeview.insert to insert iid that has a false
boolean value. Note iid=0 and iid=False would be same. Patch by Garvit
Khatri.
- bpo-33127: The ssl module now compiles with LibreSSL 2.7.1.
- bpo-30622: The ssl module now detects missing NPN support in LibreSSL.
- bpo-21060: Rewrite confusing message from setup.py upload from "No dist
file created in earlier command" to the more helpful "Must create and
upload files in one command".
- bpo-30157: Fixed guessing quote and delimiter in csv.Sniffer.sniff() when
only the last field is quoted. Patch by Jake Davis.
- bpo-32647: The ctypes module used to depend on indirect linking for
dlopen. The shared extension is now explicitly linked against libdl on
platforms with dl.
- bpo-32304: distutils' upload command no longer corrupts tar files ending
with a CR byte, and no longer tries to convert CR to CRLF in any of the
upload text fields.
- bpo-31848: Fix the error handling in Aifc_read.initfp() when the SSND
chunk is not found. Patch by Zackery Spytz.
- bpo-32521: The nis module is now compatible with new libnsl and headers
location.
- bpo-32539: Fix ``OSError`` for ``os.listdir`` with deep paths (starting
with ``\\?\``) on windows. Patch by Anthony Sottile.
- bpo-32521: glibc has removed Sun RPC. Use replacement libtirpc headers and
library in nis module.
- bpo-18035: ``telnetlib``: ``select.error`` doesn't have an ``errno``
attribute. Patch by Segev Finer.
- bpo-32185: The SSL module no longer sends IP addresses in SNI TLS
extension on platforms with OpenSSL 1.0.2+ or inet_pton.
- bpo-32186: Creating io.FileIO() and builtin file() objects now release the
GIL when checking the file descriptor. io.FileIO.readall(),
io.FileIO.read(), and file.read() now release the GIL when getting the
file size. Fixed hang of all threads with inaccessible NFS server. Patch
by Nir Soffer.
- bpo-32110: ``codecs.StreamReader.read(n)`` now returns not more than *n*
characters/bytes for non-negative *n*. This makes it compatible with
``read()`` methods of other file-like objects.
- bpo-21149: Silence a `'NoneType' object is not callable` in
`_removeHandlerRef` error that could happen when a logging Handler is
destroyed as part of cyclic garbage collection during process shutdown.
- bpo-31764: Prevent a crash in ``sqlite3.Cursor.close()`` in case the
``Cursor`` object is uninitialized. Patch by Oren Milman.
- bpo-31955: Fix CCompiler.set_executable() of distutils to handle properly
Unicode strings.
- bpo-9678: Fixed determining the MAC address in the uuid module:
* Using ifconfig on NetBSD and OpenBSD.
* Using arp on Linux, FreeBSD, NetBSD and OpenBSD.
Based on patch by Takayuki Shimizukawa.
- bpo-30057: Fix potential missed signal in signal.signal().
- bpo-31927: Fixed reading arbitrary data when parse a AF_BLUETOOTH address
on NetBSD and DragonFly BSD.
- bpo-27666: Fixed stack corruption in curses.box() and curses.ungetmouse()
when the size of types chtype or mmask_t is less than the size of C long.
curses.box() now accepts characters as arguments. Based on patch by Steve
Fink.
- bpo-25720: Fix the method for checking pad state of curses WINDOW. Patch
by Masayuki Yamamoto.
- bpo-31893: Fixed the layout of the kqueue_event structure on OpenBSD and
NetBSD. Fixed the comparison of the kqueue_event objects.
- bpo-31891: Fixed building the curses module on NetBSD.
- bpo-30058: Fixed buffer overflow in select.kqueue.control().
- bpo-31770: Prevent a crash when calling the ``__init__()`` method of a
``sqlite3.Cursor`` object more than once. Patch by Oren Milman.
- bpo-31728: Prevent crashes in `_elementtree` due to unsafe cleanup of
`Element.text` and `Element.tail`. Patch by Oren Milman.
- bpo-31752: Fix possible crash in timedelta constructor called with custom
integers.
- bpo-31681: Fix pkgutil.get_data to avoid leaking open files.
- bpo-31675: Fixed memory leaks in Tkinter's methods splitlist() and split()
when pass a string larger than 2 GiB.
- bpo-30806: Fix the string representation of a netrc object.
- bpo-30347: Stop crashes when concurrently iterate over itertools.groupby()
iterators.
- bpo-25732: `functools.total_ordering()` now implements the `__ne__`
method.
- bpo-31351: python -m ensurepip now exits with non-zero exit code if pip
bootstrapping has failed.
- bpo-31544: The C accelerator module of ElementTree ignored exceptions
raised when looking up TreeBuilder target methods in XMLParser().
- bpo-31455: The C accelerator module of ElementTree ignored exceptions
raised when looking up TreeBuilder target methods in XMLParser().
- bpo-25404: SSLContext.load_dh_params() now supports non-ASCII path.
- bpo-28958: ssl.SSLContext() now uses OpenSSL error information when a
context cannot be instantiated.
- bpo-27448: Work around a `gc.disable()` race condition in the `subprocess`
module that could leave garbage collection disabled when multiple threads
are spawning subprocesses at once. Users are *strongly encouraged* to use
the `subprocess32` module from PyPI on Python 2.7 instead, it is much more
reliable.
- bpo-31170: expat: Update libexpat from 2.2.3 to 2.2.4. Fix copying of
partial characters for UTF-8 input (libexpat bug 115):
https://github.com/libexpat/libexpat/issues/115
- bpo-29136: Add TLS 1.3 cipher suites and OP_NO_TLSv1_3.
- bpo-31334: Fix ``poll.poll([timeout])`` in the ``select`` module for
arbitrary negative timeouts on all OSes where it can only be a non-
negative integer or -1. Patch by Riccardo Coccioli.
- bpo-10746: Fix ctypes producing wrong PEP 3118 type codes for integer
types.
- bpo-30102: The ssl and hashlib modules now call
OPENSSL_add_all_algorithms_noconf() on OpenSSL < 1.1.0. The function
detects CPU features and enables optimizations on some CPU architectures
such as POWER8. Patch is based on research from Gustavo Serra Scalet.
- bpo-30502: Fix handling of long oids in ssl. Based on patch by Christian
Heimes.
- bpo-25684: Change ``ttk.OptionMenu`` radiobuttons to be unique across
instances of ``OptionMenu``.
- bpo-29169: Update zlib to 1.2.11.
- bpo-30746: Prohibited the '=' character in environment variable names in
``os.putenv()`` and ``os.spawn*()``.
- bpo-28994: The traceback no longer displayed for SystemExit raised in a
callback registered by atexit.
- bpo-30418: On Windows, subprocess.Popen.communicate() now also ignore
EINVAL on stdin.write() if the child process is still running but closed
the pipe.
- bpo-30378: Fix the problem that logging.handlers.SysLogHandler cannot
handle IPv6 addresses.
- bpo-29960: Preserve generator state when _random.Random.setstate() raises
an exception. Patch by Bryan Olson.
- bpo-30310: tkFont now supports unicode options (e.g. font family).
- bpo-30414: multiprocessing.Queue._feed background running thread do not
break from main loop on exception.
- bpo-30003: Fix handling escape characters in HZ codec. Based on patch by
Ma Lin.
- bpo-30375: Warnings emitted when compile a regular expression now always
point to the line in the user code. Previously they could point into
inners of the re module if emitted from inside of groups or conditionals.
- bpo-30363: Running Python with the -3 option now warns about regular
expression syntax that is invalid or has different semantic in Python 3 or
will change the behavior in future Python versions.
- bpo-30365: Running Python with the -3 option now emits deprecation
warnings for getchildren() and getiterator() methods of the Element class
in the xml.etree.cElementTree module and when pass the html argument to
xml.etree.ElementTree.XMLParser().
- bpo-30365: Fixed a deprecation warning about the doctype() method of the
xml.etree.ElementTree.XMLParser class. Now it is emitted only when define
the doctype() method in the subclass of XMLParser.
- bpo-30329: imaplib now catchs the Windows socket WSAEINVAL error (code
10022) on shutdown(SHUT_RDWR): An invalid operation was attempted. This
error occurs sometimes on SSL connections.
- bpo-30342: Fix sysconfig.is_python_build() if Python is built with Visual
Studio 2008 (VS 9.0).
- bpo-29990: Fix range checking in GB18030 decoder. Original patch by Ma
Lin.
- bpo-30243: Removed the __init__ methods of _json's scanner and encoder.
Misusing them could cause memory leaks or crashes. Now scanner and
encoder objects are completely initialized in the __new__ methods.
- bpo-26293: Change resulted because of zipfile breakage. (See also:
bpo-29094)
- bpo-30070: Fixed leaks and crashes in errors handling in the parser
module.
- bpo-30061: Fixed crashes in IOBase methods next() and readlines() when
readline() or next() respectively return non-sizeable object. Fixed
possible other errors caused by not checking results of PyObject_Size(),
PySequence_Size(), or PyMapping_Size().
- bpo-30011: Fixed race condition in HTMLParser.unescape().
- bpo-30068: _io._IOBase.readlines will check if it's closed first when hint
is present.
- bpo-27863: Fixed multiple crashes in ElementTree caused by race conditions
and wrong types.
- bpo-29942: Fix a crash in itertools.chain.from_iterable when encountering
long runs of empty iterables.
- bpo-29861: Release references to tasks, their arguments and their results
as soon as they are finished in multiprocessing.Pool.
- bpo-27880: Fixed integer overflow in cPickle when pickle large strings or
too many objects.
- bpo-29110: Fix file object leak in aifc.open() when file is given as a
filesystem path and is not in valid AIFF format. Original patch by Anthony
Zhang.
- bpo-29354: Fixed inspect.getargs() for parameters which are cell
variables.
- bpo-29335: Fix subprocess.Popen.wait() when the child process has exited
to a stopped instead of terminated state (ex: when under ptrace).
- bpo-29219: Fixed infinite recursion in the repr of uninitialized
ctypes.CDLL instances.
- bpo-29082: Fixed loading libraries in ctypes by unicode names on Windows.
Original patch by Chi Hsuan Yen.
- bpo-29188: Support glibc 2.24 on Linux: don't use getentropy() function
but read from /dev/urandom to get random bytes, for example in
os.urandom(). On Linux, getentropy() is implemented which getrandom() is
blocking mode, whereas os.urandom() should not block.
- bpo-29142: In urllib, suffixes in no_proxy environment variable with
leading dots could match related hostnames again (e.g. .b.c matches
a.b.c). Patch by Milan Oberkirch.
- bpo-13051: Fixed recursion errors in large or resized
curses.textpad.Textbox. Based on patch by Tycho Andersen.
- bpo-9770: curses.ascii predicates now work correctly with negative
integers.
- bpo-28427: old keys should not remove new values from WeakValueDictionary
when collecting from another thread.
- bpo-28998: More APIs now support longs as well as ints.
- bpo-28923: Remove editor artifacts from Tix.py, including encoding not
recognized by codecs.lookup.
- bpo-29019: Fix dict.fromkeys(x) overallocates when x is sparce dict.
Original patch by Rasmus Villemoes.
- bpo-19542: Fix bugs in WeakValueDictionary.setdefault() and
WeakValueDictionary.pop() when a GC collection happens in another thread.
- bpo-28925: cPickle now correctly propagates errors when unpickle instances
of old-style classes.
Documentation
-------------
- bpo-27212: Modify documentation for the :func:`islice` recipe to consume
initial values up to the start index.
- bpo-32800: Update link to w3c doc for xml default namespaces.
- bpo-17799: Explain real behaviour of sys.settrace and sys.setprofile and
their C-API counterparts regarding which type of events are received in
each function. Patch by Pablo Galindo Salgado.
- bpo-8243: Add a note about curses.addch and curses.addstr exception
behavior when writing outside a window, or pad.
- bpo-21649: Add RFC 7525 and Mozilla server side TLS links to SSL
documentation.
- bpo-30176: Add missing attribute related constants in curses
documentation.
- bpo-28929: Link the documentation to its source file on GitHub.
- bpo-26355: Add canonical header link on each page to corresponding major
version of the documentation. Patch by Matthias Bussonnier.
- bpo-12067: Rewrite Comparisons section in the Expressions chapter of the
language reference. Some of the details of comparing mixed types were
incorrect or ambiguous. Added default behaviour and consistency
suggestions for user- defined classes. Based on patch from Andy Maier.
Tests
-----
- bpo-31719: Fix test_regrtest.test_crashed() on s390x. Add a new
_testcapi._read_null() function to crash Python in a reliable way on
s390x. On s390x, ctypes.string_at(0) returns an empty string rather than
crashing.
- bpo-31518: Debian Unstable has disabled TLS 1.0 and 1.1 for
SSLv23_METHOD(). Change TLS/SSL protocol of some tests to PROTOCOL_TLS or
PROTOCOL_TLSv1_2 to make them pass on Debian.
- bpo-25674: Remove sha256.tbs-internet.com ssl test
- bpo-11790: Fix sporadic failures in
test_multiprocessing.WithProcessesTestCondition.
- bpo-30236: Backported test.regrtest options -m/--match and -G/--failfast
from Python 3.
- bpo-30223: To unify running tests in Python 2.7 and Python 3, the test
package can be run as a script. This is equivalent to running the
test.regrtest module as a script.
- bpo-30207: To simplify backports from Python 3, the test.test_support
module was converted into a package and renamed to test.support. The
test.script_helper module was moved into the test.support package. Names
test.test_support and test.script_helper are left as aliases to
test.support and test.support.script_helper.
- bpo-30197: Enhanced function swap_attr() in the test.test_support module.
It now works when delete replaced attribute inside the with statement.
The old value of the attribute (or None if it doesn't exist) now will be
assigned to the target of the "as" clause, if there is one. Also
backported function swap_item().
- bpo-28087: Skip test_asyncore and test_eintr poll failures on macOS. Skip
some tests of select.poll when running on macOS due to unresolved issues
with the underlying system poll function on some macOS versions.
- bpo-15083: Convert ElementTree doctests to unittests.
Build
-----
- bpo-33163: Upgrade pip to 9.0.3 and setuptools to v39.0.1.
- bpo-32616: Disable computed gotos by default for clang < 5.0. It caused
significant performance regression.
- bpo-32635: Fix segfault of the crypt module when libxcrypt is provided
instead of libcrypt at the system.
- bpo-31934: Abort the build when building out of a not clean source tree.
- bpo-31474: Fix -Wint-in-bool-context warnings in PyMem_MALLOC and
PyMem_REALLOC macros
- bpo-29243: Prevent unnecessary rebuilding of Python during ``make test``,
``make install`` and some other make targets when configured with
``--enable- optimizations``.
- bpo-23404: Don't regenerate generated files based on file modification
time anymore: the action is now explicit. Replace ``make touch`` with
``make regen-all``.
- bpo-27593: sys.version and the platform module python_build(),
python_branch(), and python_revision() functions now use git information
rather than hg when building from a repo.
- bpo-29643: Fix ``--enable-optimization`` configure option didn't work.
- bpo-29572: Update Windows build and OS X installers to use OpenSSL 1.0.2k.
- bpo-28768: Fix implicit declaration of function _setmode. Patch by
Masayuki Yamamoto
Windows
-------
- bpo-33184: Update Windows build to use OpenSSL 1.0.2o.
- bpo-32903: Fix a memory leak in os.chdir() on Windows if the current
directory is set to a UNC path.
- bpo-30855: Bump Tcl/Tk to 8.5.19.
- bpo-30450: Pull build dependencies from GitHub rather than svn.python.org.
macOS
-----
- bpo-32726: Provide an additional, more modern macOS installer variant that
supports macOS 10.9+ systems in 64-bit mode only. Upgrade the supplied
third-party libraries to OpenSSL 1.0.2n and SQLite 3.22.0. The 10.9+
installer now supplies its own private copy of Tcl/Tk 8.6.8.
- bpo-24414: Default macOS deployment target is now set by ``configure`` to
the build system's OS version (as is done by Python 3), not ``10.4``;
override with, for example, ``./configure MACOSX_DEPLOYMENT_TARGET=10.4``.
- bpo-17128: All 2.7 macOS installer variants now supply their own version
of ``OpenSSL 1.0.2``; the Apple-supplied SSL libraries and root
certificates are not longer used. The ``Installer Certificate`` command
in ``/Applications/Python 2.7`` may be used to download and install a
default set of root certificates from the third-party ``certifi`` package.
- bpo-11485: python.org macOS Pythons no longer supply a default SDK value
(e.g. ``-isysroot /``) or specific compiler version default (e.g.
``gcc-4.2``) when building extension modules. Use ``CC``, ``SDKROOT``,
and ``DEVELOPER_DIR`` environment variables to override compilers or to
use an SDK. See Apple's ``xcrun`` man page for more info.
- bpo-33184: Update macOS installer build to use OpenSSL 1.0.2o.
Tools/Demos
-----------
- bpo-31920: Fixed handling directories as arguments in the ``pygettext``
script. Based on patch by Oleg Krasnikov.
- bpo-30109: Fixed Tools/scripts/reindent.py for non-ASCII files. It now
processes files as binary streams. This also fixes "make reindent".
- bpo-24960: 2to3 and lib2to3 can now read pickled grammar files using
pkgutil.get_data() rather than probing the filesystem. This lets 2to3 and
lib2to3 work when run from a zipfile.
C API
-----
- bpo-20891: Fix PyGILState_Ensure(). When PyGILState_Ensure() is called in
a non-Python thread before PyEval_InitThreads(), only call
PyEval_InitThreads() after calling PyThreadState_New() to fix a crash.
- bpo-31626: When Python is built in debug mode, the memory debug hooks now
fail with a fatal error if realloc() fails to shrink a memory block,
because the debug hook just erased freed bytes without keeping a copy of
them.
|
|
Python 2.7.14:
Core and Builtins
- bpo-30657: Fixed possible integer overflow in PyString_DecodeEscape.
- bpo-27945: Fixed various segfaults with dict when input collections are
mutated during searching, inserting or comparing. Based on patches by
Duane Griffin and Tim Mitchell.
- bpo-25794: Fixed type.__setattr__() and type.__delattr__() for
non-interned or unicode attribute names. Based on patch by Eryk Sun.
- bpo-29935: Fixed error messages in the index() method of tuple and list
when pass indices of wrong type.
- bpo-28598: Support __rmod__ for subclasses of str being called before
str.__mod__. Patch by Martijn Pieters.
- bpo-29602: Fix incorrect handling of signed zeros in complex constructor for
complex subclasses and for inputs having a __complex__ method. Patch
by Serhiy Storchaka.
- bpo-29347: Fixed possibly dereferencing undefined pointers
when creating weakref objects.
- Issue 14376: Allow sys.exit to accept longs as well as ints. Patch
by Gareth Rees.
- Issue 29028: Fixed possible use-after-free bugs in the subscription of the
buffer object with custom index object.
- Issue 29145: Fix overflow checks in string, bytearray and unicode.
Patch by jan matejek and Xiang Zhang.
- Issue 28932: Do not include <sys/random.h> if it does not exist.
Extension Modules
- bpo-31170: Update vendorized expat to 2.2.4.
- Issue 29169: Update zlib to 1.2.11.
|
|
Core and Builtins
-----------------
- Issue 28847: dumbdbm no longer writes the index file in when it is not
changed and supports reading read-only files.
- Issue 11145: Fixed miscellaneous issues with C-style formatting of types
with custom __oct__ and __hex__.
- Issue 24469: Fixed memory leak caused by int subclasses without overridden
tp_free (e.g. C-inherited Cython classes).
- Issue 19398: Extra slash no longer added to sys.path components in case of
empty compile-time PYTHONPATH components.
- Issue 21720: Improve exception message when the type of fromlist is unicode.
fromlist parameter of __import__() only accepts str in Python 2 and this
will help to identify the problem especially when the unicode_literals
future import is used.
- Issue 26906: Resolving special methods of uninitialized type now causes
implicit initialization of the type instead of a fail.
- Issue 18287: PyType_Ready() now checks that tp_name is not NULL.
Original patch by Niklas Koep.
- Issue 24098: Fixed possible crash when AST is changed in process of
compiling it.
- Issue 28350: String constants with null character no longer interned.
- Issue 27942: String constants now interned recursively in tuples and frozensets.
- Issue 15578: Correctly incref the parent module while importing.
- Issue 26307: The profile-opt build now applies PGO to the built-in modules.
- Issue 26020: set literal evaluation order did not match documented behaviour.
- Issue 27870: A left shift of zero by a large integer no longer attempts
to allocate large amounts of memory.
- Issue 25604: Fix a minor bug in integer true division; this bug could
potentially have caused off-by-one-ulp results on platforms with
unreliable ldexp implementations.
- Issue 27473: Fixed possible integer overflow in str, unicode and bytearray
concatenations and repetitions. Based on patch by Xiang Zhang.
- Issue 27507: Add integer overflow check in bytearray.extend(). Patch by
Xiang Zhang.
- Issue 27581: Don't rely on wrapping for overflow check in
PySequence_Tuple(). Patch by Xiang Zhang.
- Issue 23908: os functions, open() and the io.FileIO constructor now reject
unicode paths with embedded null character on Windows instead of silently
truncating them.
- Issue 27514: Make having too many statically nested blocks a SyntaxError
instead of SystemError.
|
|
Core and Builtins
-----------------
- Issue 20041: Fixed TypeError when frame.f_trace is set to None.
Patch by Xavier de Gaye.
- Issue 25702: A --with-lto configure option has been added that will
enable link time optimizations at build time during a make profile-opt.
Some compilers and toolchains are known to not produce stable code when
using LTO, be sure to test things thoroughly before relying on it.
It can provide a few % speed up over profile-opt alone.
- Issue 26168: Fixed possible refleaks in failing Py_BuildValue() with the "N"
format unit.
- Issue 27039: Fixed bytearray.remove() for values greater than 127. Patch by
Joe Jevnik.
- Issue 4806: Avoid masking the original TypeError exception when using star
(*) unpacking and the exception was raised from a generator. Based on
patch by Hagen Fürstenau.
- Issue 26659: Make the builtin slice type support cycle collection.
- Issue 26718: super.__init__ no longer leaks memory if called multiple times.
NOTE: A direct call of super.__init__ is not endorsed!
- Issue 13410: Fixed a bug in PyUnicode_Format where it failed to properly
ignore errors from a __int__() method.
- Issue 26494: Fixed crash on iterating exhausting iterators.
Affected classes are generic sequence iterators, iterators of bytearray,
list, tuple, set, frozenset, dict, OrderedDict and corresponding views.
- Issue 26581: If coding cookie is specified multiple times on a line in
Python source code file, only the first one is taken to account.
- Issue 22836: Ensure exception reports from PyErr_Display() and
PyErr_WriteUnraisable() are sensible even when formatting them produces
secondary errors. This affects the reports produced by
sys.__excepthook__() and when __del__() raises an exception.
- Issue 22847: Improve method cache efficiency.
- Issue 25843: When compiling code, don't merge constants if they are equal
but have a different types. For example, ``f1, f2 = lambda: 1, lambda: 1.0``
is now correctly compiled to two different functions: ``f1()`` returns ``1``
(``int``) and ``f2()`` returns ``1.0`` (``int``), even if ``1`` and ``1.0``
are equal.
- Issue 22995: [UPDATE] Remove the one of the pickleability tests in
_PyObject_GetState() due to regressions observed in Cython-based projects.
- Issue 25961: Disallowed null characters in the type name.
- Issue 22995: Instances of extension types with a state that aren't
subclasses of list or dict and haven't implemented any pickle-related
methods (__reduce__, __reduce_ex__, __getnewargs__, __getnewargs_ex__,
or __getstate__), can no longer be pickled. Including memoryview.
- Issue 20440: Massive replacing unsafe attribute setting code with special
macro Py_SETREF.
- Issue 25421: __sizeof__ methods of builtin types now use dynamic basic size.
This allows sys.getsize() to work correctly with their subclasses with
__slots__ defined.
- Issue 19543: Added Py3k warning for decoding unicode.
- Issue 24097: Fixed crash in object.__reduce__() if slot name is freed inside
__getattr__.
- Issue 24731: Fixed crash on converting objects with special methods
__str__, __trunc__, and __float__ returning instances of subclasses of
str, long, and float to subclasses of str, long, and float correspondingly.
- Issue 26478: Fix semantic bugs when using binary operators with dictionary
views and tuples.
- Issue 26171: Fix possible integer overflow and heap corruption in
zipimporter.get_data().
Library
-------
- Issue 26556: Update expat to 2.1.1, fixes CVE-2015-1283.
- Fix TLS stripping vulnerability in smptlib, CVE-2016-0772. Reported by Team
Oststrom
- Issue 7356: ctypes.util: Make parsing of ldconfig output independent of the
locale.
- Issue 25738: Stop BaseHTTPServer.BaseHTTPRequestHandler.send_error() from
sending a message body for 205 Reset Content. Also, don't send the
Content-Type header field in responses that don't have a body. Based on
patch by Susumu Koshiba.
- Issue 21313: Fix the "platform" module to tolerate when sys.version
contains truncated build information.
- Issue 27211: Fix possible memory corruption in io.IOBase.readline().
- Issue 27114: Fix SSLContext._load_windows_store_certs fails with
PermissionError
- Issue 14132: Fix urllib.request redirect handling when the target only has
a query string. Fix by Ján Janech.
- Removed the requirements for the ctypes and modulefinder modules to be
compatible with earlier Python versions.
- Issue 22274: In the subprocess module, allow stderr to be redirected to
stdout even when stdout is not redirected. Patch by Akira Li.
- Issue 12045: Avoid duplicate execution of command in ctypes.util._get_soname().
Patch by Sijin Joseph.
- Issue 26960: Backported 16270 from Python 3 to Python 2, to prevent urllib
from hanging when retrieving certain FTP files.
- Issue 25745: Fixed leaking a userptr in curses panel destructor.
- Issue 17765: weakref.ref() no longer silently ignores keyword arguments.
Patch by Georg Brandl.
- Issue 26873: xmlrpclib now raises ResponseError on unsupported type tags
instead of silently return incorrect result.
- Issue 24114: Fix an uninitialized variable in `ctypes.util`.
The bug only occurs on SunOS when the ctypes implementation searches
for the `crle` program. Patch by Xiang Zhang. Tested on SunOS by
Kees Bos.
- Issue 26864: In urllib, change the proxy bypass host checking against
no_proxy to be case-insensitive, and to not match unrelated host names that
happen to have a bypassed hostname as a suffix. Patch by Xiang Zhang.
- Issue 26804: urllib will prefer lower_case proxy environment variables over
UPPER_CASE or Mixed_Case ones. Patch contributed by Hans-Peter Jansen.
- Issue 26837: assertSequenceEqual() now correctly outputs non-stringified
differing items. This affects assertListEqual() and assertTupleEqual().
- Issue 26822: itemgetter, attrgetter and methodcaller objects no longer
silently ignore keyword arguments.
- Issue 26657: Fix directory traversal vulnerability with SimpleHTTPServer
on Windows. This fixes a regression that was introduced in 2.7.7. Based
on patch by Philipp Hagemeister.
- Issue 19377: Add .svg to mimetypes.types_map.
- Issue 13952: Add .csv to mimetypes.types_map. Patch by Geoff Wilson.
- Issue 16329: Add .webm to mimetypes.types_map. Patch by Giampaolo Rodola'.
- Issue 23735: Handle terminal resizing with Readline 6.3+ by installing our
own SIGWINCH handler. Patch by Eric Price.
- Issue 26644: Raise ValueError rather than SystemError when a negative
length is passed to SSLSocket.recv() or read().
- Issue 23804: Fix SSL recv(0) and read(0) methods to return zero bytes
instead of up to 1024.
- Issue 24266: Ctrl+C during Readline history search now cancels the search
mode when compiled with Readline 7.
- Issue 23857: Implement PEP 493, adding a Python-2-only ssl module API and
environment variable to configure the default handling of SSL/TLS certificates
for HTTPS connections.
- Issue 26313: ssl.py _load_windows_store_certs fails if windows cert store
is empty. Patch by Baji.
- Issue 26513: Fixes platform module detection of Windows Server
- Issue 23718: Fixed parsing time in week 0 before Jan 1. Original patch by
Tamás Bence Gedai.
- Issue 26177: Fixed the keys() method for Canvas and Scrollbar widgets.
- Issue 15068: Got rid of excessive buffering in the fileinput module.
The bufsize parameter is no longer used.
- Issue 2202: Fix UnboundLocalError in
AbstractDigestAuthHandler.get_algorithm_impls. Initial patch by Mathieu Dupuy.
- Issue 26475: Fixed debugging output for regular expressions with the (?x)
flag.
- Issue 26385: Remove the file if the internal fdopen() call in
NamedTemporaryFile() fails. Based on patch by Silent Ghost.
- Issue 26309: In the "socketserver" module, shut down the request (closing
the connected socket) when verify_request() returns false. Based on patch
by Aviv Palivoda.
- Issue 25939: On Windows open the cert store readonly in ssl.enum_certificates.
- Issue 24303: Fix random EEXIST upon multiprocessing semaphores creation with
Linux PID namespaces enabled.
- Issue 25698: Importing module if the stack is too deep no longer replaces
imported module with the empty one.
- Issue 12923: Reset FancyURLopener's redirect counter even if there is an
exception. Based on patches by Brian Brazil and Daniel Rocco.
- Issue 25945: Fixed a crash when unpickle the functools.partial object with
wrong state. Fixed a leak in failed functools.partial constructor.
"args" and "keywords" attributes of functools.partial have now always types
tuple and dict correspondingly.
- Issue 19883: Fixed possible integer overflows in zipimport.
- Issue 26147: xmlrpclib now works with unicode not encodable with used
non-UTF-8 encoding.
- Issue 16620: Fixed AttributeError in msilib.Directory.glob().
- Issue 21847: Fixed xmlrpclib on Unicode-disabled builds.
- Issue 6500: Fixed infinite recursion in urllib2.Request.__getattr__().
- Issue 26083: Workaround a subprocess bug that raises an incorrect
"ValueError: insecure string pickle" exception instead of the actual
exception on some platforms such as Mac OS X when an exception raised
in the forked child process prior to the exec() was large enough that
it overflowed the internal errpipe_read pipe buffer.
- Issue 24103: Fixed possible use after free in ElementTree.iterparse().
- Issue 20954: _args_from_interpreter_flags used by multiprocessing and some
tests no longer behaves incorrectly in the presence of the PYTHONHASHSEED
environment variable.
- Issue 14285: When executing a package with the "python -m package" option,
and package initialization raises ImportError, a proper traceback is now
reported.
- Issue 6478: _strptime's regexp cache now is reset after changing timezone
with time.tzset().
- Issue 25718: Fixed copying object with state with boolean value is false.
- Issue 25742: :func:`locale.setlocale` now accepts a Unicode string for
its second parameter.
- Issue 10131: Fixed deep copying of minidom documents. Based on patch
by Marian Ganisin.
- Issue 25725: Fixed a reference leak in cPickle.loads() when unpickling
invalid data including tuple instructions.
- Issue 25663: In the Readline completer, avoid listing duplicate global
names, and search the global namespace before searching builtins.
- Issue 25688: Fixed file leak in ElementTree.iterparse() raising an error.
- Issue 23914: Fixed SystemError raised by CPickle unpickler on broken data.
- Issue 25924: Avoid unnecessary serialization of getaddrinfo(3) calls on
OS X versions 10.5 or higher. Original patch by A. Jesse Jiryu Davis.
- Issue 26406: Avoid unnecessary serialization of getaddrinfo(3) calls on
current versions of OpenBSD and NetBSD. Patch by A. Jesse Jiryu Davis.
IDLE
----
- Issue 5124: Paste with text selected now replaces the selection on X11.
This matches how paste works on Windows, Mac, most modern Linux apps,
and ttk widgets. Original patch by Serhiy Storchaka.
- Issue 24759: Make clear in idlelib.idle_test.__init__ that the directory
is a private implementation of test.test_idle and tool for maintainers.
- Issue 26673: When tk reports font size as 0, change to size 10.
Such fonts on Linux prevented the configuration dialog from opening.
- Issue 27044: Add ConfigDialog.remove_var_callbacks to stop memory leaks.
- In the 'IDLE-console differences' section of the IDLE doc, clarify
how running with IDLE affects sys.modules and the standard streams.
- Issue 25507: fix incorrect change in IOBinding that prevented printing.
Change also prevented saving shell window with non-ascii characters.
Augment IOBinding htest to include all major IOBinding functions.
- Issue 25905: Revert unwanted conversion of ' to ’ RIGHT SINGLE QUOTATION
MARK in README.txt and open this and NEWS.txt with 'ascii'.
Re-encode CREDITS.txt to utf-8 and open it with 'utf-8'.
- Issue 26417: Prevent spurious errors and incorrect defaults when
installing IDLE 2.7 on OS X: default configuration settings are
no longer installed from OS X specific copies.
Documentation
-------------
- Issue 26736: Used HTTPS for external links in the documentation if possible.
- Issue 6953: Rework the Readline module documentation to group related
functions together, and add more details such as what underlying Readline
functions and variables are accessed.
- Issue 26014: Guide users to the newer packaging documentation as was done
for Python 3.x. In particular, the top-level 2.7 documentation page now
links to the newer installer and distributions pages rather than the
legacy install and Distutils pages; these are still linked to in the
library/distutils doc page.
Tests
-----
- Issue 21916: Added tests for the turtle module. Patch by ingrid,
Gregory Loyse and Jelle Zijlstra.
- Issue 25940: Changed test_ssl to use self-signed.pythontest.net. This
avoids relying on svn.python.org, which recently changed root certificate.
- Issue 25616: Tests for OrderedDict are extracted from test_collections
into separate file test_ordered_dict.
Build
-----
- Issue 22359: Avoid incorrect recursive $(MAKE), and disable the rules for
running pgen when cross-compiling. The pgen output is normally saved with
the source code anyway, and is still regenerated when doing a native build.
Patch by Jonas Wagner and Xavier de Gaye.
- Issue 19450: Update Windows builds to use SQLite 3.8.11.0.
- Issue 27229: Fix the cross-compiling pgen rule for in-tree builds. Patch
by Xavier de Gaye.
- Issue 17603: Avoid error about nonexistant fileblocks.o file by using a
lower-level check for st_blocks in struct stat.
- Issue 26465: Update Windows builds to use OpenSSL 1.0.2g.
- Issue 24421: Compile Modules/_math.c once, before building extensions.
Previously it could fail to compile properly if the math and cmath builds
were concurrent.
- Issue 25824: Fixes sys.winver to not include any architecture suffix.
- Issue 25348: Added ``--pgo`` and ``--pgo-job`` arguments to
``PCbuild\build.bat`` for building with Profile-Guided Optimization. The
old ``PCbuild\build_pgo.bat`` script is now deprecated, and simply calls
``PCbuild\build.bat --pgo %*``.
- Issue 25827: Add support for building with ICC to ``configure``, including
a new ``--with-icc`` flag.
- Issue 25696: Fix installation of Python on UNIX with make -j9.
- Issue 26930: Update OS X 10.5+ 32-bit-only installer to build
and link with OpenSSL 1.0.2h.
- Issue 26268: Update Windows builds to use OpenSSL 1.0.2f.
- Issue 25136: Support Apple Xcode 7's new textual SDK stub libraries.
Tools/Demos
-----------
- Issue 26799: Fix python-gdb.py: don't get C types once when the Python code
is loaded, but get C types on demand. The C types can change if
python-gdb.py is loaded before the Python executable. Patch written by Thomas
Ilsche.
C API
-----
- Issue 26476: Fixed compilation error when use PyErr_BadInternalCall() in C++.
Patch by Jeroen Demeyer.
Misc
----
- Issue 17500, and https://github.com/python/pythondotorg/issues/945: Remove
unused and outdated icons.
|
|
|
|
This is a bug-fix release.
|
|
changes include:
- The entirety of Python 3.4's ssl module has been backported for
Python 2.7.9. See PEP 466 for justification.
- HTTPS certificate validation using the system's certificate store
is now enabled by default. See PEP 476 for details.
- SSLv3 has been disabled by default in httplib and its reverse
dependencies due to the POODLE attack.
- The ensurepip module module has been backported, which provides the
pip package manager in every Python 2.7 installation. See PEP 477.
|
|
The openssl version bundled in the Windows installer has been updated.
A regression in the mimetypes module on Windows has been fixed.
A possible overflow in the buffer type has been fixed.
A bug in the CGIHTTPServer module which allows arbitrary execution of code in the server root has been patched.
A regression in the handling of UNC paths in os.path.join has been fixed
|
|
This is a regularly scheduled 2.7 series bugfix and includes numerous bugfixes (http://hg.python.org/cpython/raw-file/f89216059edf/Misc/NEWS) over 2.7.6.
|
|
This is a 2.7 series bugfix release. Most importantly, it resolves an issue that caused the interactive prompt to crash on OS X 10.9. It also includes numerous bugfixes over 2.7.5.
|
|
2.7.4. Modules with regressions fixed include zipfile, gzip, and logging.
|
|
This is a 2.7 series bugfix release.
It includes hundreds of bugfixes over 2.7.3.
|
|
* An ordered dictionary type
* New unittest features including test skipping, new assert methods, and test
discovery
* A much faster io module
* Automatic numbering of fields in the str.format() method
* Float repr improvements backported from 3.x
* Tile support for Tkinter
* A backport of the memoryview object from 3.x
* Set literals
* Set and dictionary comprehensions
* Dictionary views
* New syntax for nested with statements
* The sysconfig module
|
|
What's New in Python 2.7.2?
===========================
*Release date: 2011-06-11*
Library
-------
- Issue #12009: Fixed regression in netrc file comment handling.
Extension Modules
-----------------
- Issue #1221: Make pyexpat.__version__ equal to the Python version.
What's New in Python 2.7.2 release candidate 1?
===============================================
*Release date: 2011-05-29*
Core and Builtins
-----------------
- Issue #9670: Increase the default stack size for secondary threads on
Mac OS X and FreeBSD to reduce the chances of a crash instead of a
"maximum recursion depth" RuntimeError exception.
(patch by Ronald Oussoren)
- Correct lookup of __dir__ on objects. This allows old-style classes to have
__dir__. It also causes errors besides AttributeError found on lookup to be
propagated.
- Issue #1195: Fix input() if it is interrupted by CTRL+d and then CTRL+c,
clear the end-of-file indicator after CTRL+d.
- Issue #8651: PyArg_Parse*() functions raise an OverflowError if the file
doesn't have PY_SSIZE_T_CLEAN define and the size doesn't fit in an int
(length bigger than 2^31-1 bytes).
- Issue #8651: Fix "z#" format of PyArg_Parse*() function: the size was not
written if PY_SSIZE_T_CLEAN is defined.
- Issue #9756: When calling a method descriptor or a slot wrapper descriptor,
the check of the object type doesn't read the __class__ attribute anymore.
Fix a crash if a class override its __class__ attribute (e.g. a proxy of the
str type). Patch written by Andreas Stührk.
- Issue #10517: After fork(), reinitialize the TLS used by the PyGILState_*
APIs, to avoid a crash with the pthread implementation in RHEL 5. Patch
by Charles-François Natali.
- Issue #6780: fix starts/endswith error message to mention that tuples are
accepted too.
- Issue #5057: fix a bug in the peepholer that led to non-portable pyc files
between narrow and wide builds while optimizing BINARY_SUBSCR on non-BMP
chars (e.g. u"\U00012345"[0]).
- Issue #11650: PyOS_StdioReadline() retries fgets() if it was interrupted
(EINTR), for example if the program is stopped with CTRL+z on Mac OS X. Patch
written by Charles-Francois Natali.
- Issue #11144: Ensure that int(a_float) returns an int whenever possible.
Previously, there were some corner cases where a long was returned even
though the result was within the range of an int.
- Issue #11450: Don't truncate hg version info in Py_GetBuildInfo() when
there are many tags (e.g. when using mq). Patch by Nadeem Vawda.
- Issue #10451: memoryview objects could allow to mutate a readable buffer.
Initial patch by Ross Lagerwall.
- Issue #10892: Don't segfault when trying to delete __abstractmethods__ from a
class.
- Issue #8020: Avoid a crash where the small objects allocator would read
non-Python managed memory while it is being modified by another thread.
Patch by Matt Bandy.
- Issue #11004: Repaired edge case in deque.count().
- Issue #8278: On Windows and with a NTFS filesystem, os.stat() and os.utime()
can now handle dates after 2038.
- Issue #4236: Py_InitModule4 now checks the import machinery directly
rather than the Py_IsInitialized flag, avoiding a Fatal Python
error in certain circumstances when an import is done in __del__.
- issue #11828: startswith and endswith don't accept None as slice index.
Patch by Torsten Becker.
- Issue #10674: Remove unused 'dictmaker' rule from grammar.
- Issue #10596: Fix float.__mod__ to have the same behaviour as
float.__divmod__ with respect to signed zeros. -4.0 % 4.0 should be
0.0, not -0.0.
- Issue #11386: bytearray.pop() now throws IndexError when the bytearray is
empty, instead of OverflowError.
Library
-------
- Issue #12161: Cause StringIO.getvalue() to raise a ValueError when used on a
closed StringIO instance.
- Issue #12182: Fix pydoc.HTMLDoc.multicolumn() if Python uses the new (true)
division (python -Qnew). Patch written by Ralf W. Grosse-Kunstleve.
- Issue #12175: RawIOBase.readall() now returns None if read() returns None.
- Issue #12175: FileIO.readall() now raises a ValueError instead of an IOError
if the file is closed.
- Issue #1441530: In imaplib, use makefile() to wrap the SSL socket to avoid
heap fragmentation and MemoryError with some malloc implementations.
- Issue #12100: Don't reset incremental encoders of CJK codecs at each call to
their encode() method anymore, but continue to call the reset() method if the
final argument is True.
- Issue #12124: zipimport doesn't keep a reference to zlib.decompress() anymore
to be able to unload the module.
- Issue #11088: don't crash when using F5 to run a script in IDLE on MacOSX
with Tk 8.5.
- Issue #10154, #10090: change the normalization of UTF-8 to "UTF-8" instead
of "UTF8" in the locale module as the latter is not supported MacOSX and OpenBSD.
- Issue #9516: avoid errors in sysconfig when MACOSX_DEPLOYMENT_TARGET is
set in shell.
- Issue #12050: zlib.decompressobj().decompress() now clears the unconsumed_tail
attribute when called without a max_length argument.
- Issue #12062: In the `io` module, fix a flushing bug when doing a certain
type of I/O sequence on a file opened in read+write mode (namely: reading,
seeking a bit forward, writing, then seeking before the previous write but
still within buffered data, and writing again).
- Issue #8498: In socket.accept(), allow to specify 0 as a backlog value in
order to accept exactly one connection. Patch by Daniel Evers.
- Issue #12012: ssl.PROTOCOL_SSLv2 becomes optional.
- Issue #11164: Remove obsolete allnodes test from minidom test.
- Issue #11927: SMTP_SSL now uses port 465 by default as documented. Patch
by Kasun Herath.
- Issue 11999: fixed sporadic sync failure mailbox.Maildir due to its trying to
detect mtime changes by comparing to the system clock instead of to the
previous value of the mtime.
- Issue #10684: shutil.move used to delete a folder on case insensitive
filesystems when the source and destination name where the same except
for the case.
- Issue #11982: fix json.loads('""') to return u'' rather than ''.
- Issue #11277: mmap.mmap() calls fcntl(fd, F_FULLFSYNC) on Mac OS X to get
around a mmap bug with sparse files. Patch written by Steffen Daode Nurpmeso.
- Issue #10761: Fix tarfile.extractall failure when symlinked files are
present. Initial patch by Scott Leerssen.
- Issue #11763: don't use difflib in TestCase.assertMultiLineEqual if the
strings are too long.
- Issue #11236: getpass.getpass responds to ctrl-c or ctrl-z on terminal.
- Issue #11768: The signal handler of the signal module only calls
Py_AddPendingCall() for the first signal to fix a deadlock on reentrant or
parallel calls. PyErr_SetInterrupt() writes also into the wake up file.
- Issue #11875: collections.OrderedDict's __reduce__ was temporarily
mutating the object instead of just working on a copy.
- Issue #11442: Add a charset parameter to the Content-type in SimpleHTTPServer
to avoid XSS attacks.
- Issue #11467: Fix urlparse behavior when handling urls which contains scheme
specific part only digits. Patch by Santoso Wijaya.
- collections.Counter().copy() now works correctly for subclasses.
- Issue #11474: Fix the bug with url2pathname() handling of '/C|/' on Windows.
Patch by Santoso Wijaya.
- Issue #9233: Fix json.loads('{}') to return a dict (instead of a list), when
_json is not available.
- Issue #11703: urllib2.geturl() does not return correct url when the original
url contains #fragment.
- Issue #10019: Fixed regression in json module where an indent of 0 stopped
adding newlines and acted instead like 'None'.
- Issue #5162: Treat services like frozen executables to allow child spawning
from multiprocessing.forking on Windows.
- Issue #4877: Fix a segfault in xml.parsers.expat while attempting to parse
a closed file.
- Issue #11830: Remove unnecessary introspection code in the decimal module.
It was causing a failed import in the Turkish locale where the locale
sensitive str.upper() method caused a name mismatch.
- Issue #8428: Fix a race condition in multiprocessing.Pool when terminating
worker processes: new processes would be spawned while the pool is being
shut down. Patch by Charles-François Natali.
- Issue #7311: Fix HTMLParser to accept non-ASCII attribute values.
- Issue #10963: Ensure that subprocess.communicate() never raises EPIPE.
- Issue #11662: Make urllib and urllib2 ignore redirections if the
scheme is not HTTP, HTTPS or FTP (CVE-2011-1521).
- Issue #11256: Fix inspect.getcallargs on functions that take only keyword
arguments.
- Issue #11696: Fix ID generation in msilib.
- Issue #9696: Fix exception incorrectly raised by xdrlib.Packer.pack_int when
trying to pack a negative (in-range) integer.
- Issue #11675: multiprocessing.[Raw]Array objects created from an integer size
are now zeroed on creation. This matches the behaviour specified by the
documentation.
- Issue #7639: Fix short file name generation in bdist_msi.
- Issue #11666: let help() display named tuple attributes and methods
that start with a leading underscore.
- Issue #11673: Fix multiprocessing Array and RawArray constructors to accept a
size of type 'long', rather than only accepting 'int'.
- Issue #10042: Fixed the total_ordering decorator to handle cross-type
comparisons that could lead to infinite recursion.
- Issue #10979: unittest stdout buffering now works with class and module
setup and teardown.
- Issue #11569: use absolute path to the sysctl command in multiprocessing to
ensure that it will be found regardless of the shell PATH. This ensures
that multiprocessing.cpu_count works on default installs of MacOSX.
- Issue #11500: Fixed a bug in the os x proxy bypass code for fully qualified
IP addresses in the proxy exception list.
- Issue #11131: Fix sign of zero in plus and minus operations when
the context rounding mode is ROUND_FLOOR.
- Issue #5622: Fix curses.wrapper to raise correct exception if curses
initialization fails.
- Issue #11391: Writing to a mmap object created with
``mmap.PROT_READ|mmap.PROT_EXEC`` would segfault instead of raising a
TypeError. Patch by Charles-François Natali.
- Issue #11306: mailbox in certain cases adapts to an inability to open
certain files in read-write mode. Previously it detected this by
checking for EACCES, now it also checks for EROFS.
- Issue #11265: asyncore now correctly handles EPIPE, EBADF and EAGAIN errors
on accept(), send() and recv().
- Issue #11326: Add the missing connect_ex() implementation for SSL sockets,
and make it work for non-blocking connects.
- Issue #10956: Buffered I/O classes retry reading or writing after a signal
has arrived and the handler returned successfully.
- Issue #10680: Fix mutually exclusive arguments for argument groups in
argparse.
- Issue #4681: Allow mmap() to work on file sizes and offsets larger than
4GB, even on 32-bit builds. Initial patch by Ross Lagerwall, adapted for
32-bit Windows.
- Issue #10360: In WeakSet, do not raise TypeErrors when testing for
membership of non-weakrefable objects.
- Issue #10549: Fix pydoc traceback when text-documenting certain classes.
- Issue #940286: pydoc.Helper.help() ignores input/output init parameters.
- Issue #11171: Fix detection of config/Makefile when --prefix !=
--exec-prefix, which caused Python to not start.
- Issue #11116: any error during addition of a message to a mailbox now causes
a rollback, instead of leaving the mailbox partially modified.
- Issue #8275: Fix passing of callback arguments with ctypes under Win64.
Patch by Stan Mihai.
- Issue #10940: Workaround an IDLE hang on Mac OS X 10.6 when using the
menu accelerators for Open Module, Go to Line, and New Indent Width.
The accelerators still work but no longer appear in the menu items.
- Issue #10907: Warn OS X 10.6 IDLE users to use ActiveState Tcl/Tk 8.5, rather
than the currently problematic Apple-supplied one, when running with the
64-/32-bit installer variant.
- Issue #11052: Correct IDLE menu accelerators on Mac OS X for Save
commands.
- Issue #10949: Improved robustness of rotating file handlers.
- Issue #10955: Fix a potential crash when trying to mmap() a file past its
length. Initial patch by Ross Lagerwall.
- Issue #10898: Allow compiling the posix module when the C library defines
a symbol named FSTAT.
- Issue #6075: IDLE on Mac OS X now works with both Carbon AquaTk and
Cocoa AquaTk.
- Issue #10916: mmap should not segfault when a file is mapped using 0 as
length and a non-zero offset, and an attempt to read past the end of file
is made (IndexError is raised instead). Patch by Ross Lagerwall.
- Issue #10875: Update Regular Expression HOWTO; patch by 'SilentGhost'.
- Issue #10827: Changed the rules for 2-digit years. The time.asctime
function will now format any year when ``time.accept2dyear`` is
false and will accept years >= 1000 otherwise. The year range
accepted by ``time.mktime`` and ``time.strftime`` is still system
dependent, but ``time.mktime`` will now accept full range supported
by the OS. Conversion of 2-digit years to 4-digit is deprecated.
- Issue #10869: Fixed bug where ast.increment_lineno modified the root
node twice.
- Issue #7858: Raise an error properly when os.utime() fails under Windows
on an existing file.
- Issue #3839: wsgiref should not override a Content-Length header set by
the application. Initial patch by Clovis Fabricio.
- Issue #10806, issue #9905: Fix subprocess pipes when some of the standard
file descriptors (0, 1, 2) are closed in the parent process. Initial
patch by Ross Lagerwall.
- Issue #4662: os.tempnam(), os.tmpfile() and os.tmpnam() now raise a py3k
DeprecationWarning.
- Subclasses of collections.OrderedDict now work correctly with __missing__.
- Issue #10753 - Characters ';', '=' and ',' in the PATH_INFO environment
variable won't be quoted when the URI is constructed by the wsgiref.util 's
request_uri method. According to RFC 3986, these characters can be a part of
params in PATH component of URI and need not be quoted.
- Issue #10738: Fix webbrowser.Opera.raise_opts
- Issue #9824: SimpleCookie now encodes , and ; in values to cater to how
browsers actually parse cookies.
- Issue #1379416: eliminated a source of accidental unicode promotion in
email.header.Header.encode.
- Issue #5258/#10642: if site.py encounters a .pth file that generates an error,
it now prints the filename, line number, and traceback to stderr and skips
the rest of that individual file, instead of stopping processing entirely.
- Issue #10750: The ``raw`` attribute of buffered IO objects is now read-only.
- Issue #10242: unittest.TestCase.assertItemsEqual makes too many assumptions
about input.
- Issue #10611: SystemExit should not cause a unittest test run to exit.
- Issue #6791: Limit header line length (to 65535 bytes) in http.client,
to avoid denial of services from the other party.
- Issue #10404: Use ctl-button-1 on OSX for the context menu in Idle.
- Issue #9907: Fix tab handling on OSX when using editline by calling
rl_initialize first, then setting our custom defaults, then reading .editrc.
- Issue #4188: Avoid creating dummy thread objects when logging operations
from the threading module (with the internal verbose flag activated).
- Issue #9721: Fix the behavior of urljoin when the relative url starts with a
';' character. Patch by Wes Chow.
- Issue #10714: Limit length of incoming request in http.server to 65536 bytes
for security reasons. Initial patch by Ross Lagerwall.
- Issue #9558: Fix distutils.command.build_ext with VS 8.0.
- Issue #10695: passing the port as a string value to telnetlib no longer
causes debug mode to fail.
- Issue #10107: Warn about unsaved files in IDLE on OSX.
- Issue #10406: Enable Rstrip IDLE extension on OSX (just like on other
platforms).
- Issue #10478: Reentrant calls inside buffered IO objects (for example by
way of a signal handler) now raise a RuntimeError instead of freezing the
current process.
- Issue #10497: Fix incorrect use of gettext in argparse.
- Issue #10464: netrc now correctly handles lines with embedded '#' characters.
- Issue #1731717: Fixed the problem where subprocess.wait() could cause an
OSError exception when The OS had been told to ignore SIGCLD in our process
or otherwise not wait for exiting child processes.
- Issue #9509: argparse now properly handles IOErrors raised by
argparse.FileType.
- Issue #9348: Raise an early error if argparse nargs and metavar don't match.
- Issue #8982: Improve the documentation for the argparse Namespace object.
- Issue #9343: Document that argparse parent parsers must be configured before
their children.
- Issue #9026: Fix order of argparse sub-commands in help messages.
- Issue #9347: Fix formatting for tuples in argparse type= error messages.
Extension Modules
-----------------
- Stop using the old interface for providing methods and attributes in the _sre
module. Among other things, this gives these classes ``__class__``
attributes. (See #12099)
- Issue #10169: Fix argument parsing in socket.sendto() to avoid error masking.
- Issue #12051: Fix segfault in json.dumps() while encoding highly-nested
objects using the C accelerations.
- Issue #12017: Fix segfault in json.loads() while decoding highly-nested
objects using the C accelerations.
- Issue #1838: Prevent segfault in ctypes, when _as_parameter_ on a class is set
to an instance of the class.
- Issue #678250: Make mmap flush a noop on ACCESS_READ and ACCESS_COPY.
Build
-----
- Issue #11217: For 64-bit/32-bit Mac OS X universal framework builds,
ensure "make install" creates symlinks in --prefix bin for the "-32"
files in the framework bin directory like the installer does.
- Issue #11411: Fix 'make DESTDIR=' with a relative destination.
- Issue #10709: Add updated AIX notes in Misc/README.AIX.
- Issue #11184: Fix large-file support on AIX.
- Issue #941346: Fix broken shared library build on AIX.
- Issue #11268: Prevent Mac OS X Installer failure if Documentation
package had previously been installed.
- Issue #11079: The /Applications/Python x.x folder created by the Mac
OS X installers now includes a link to the installed documentation.
- Issue #11054: Allow Mac OS X installer builds to again work on 10.5 with
the system-provided Python.
- Issue #10843: Update third-party library versions used in OS X
32-bit installer builds: bzip2 1.0.6, readline 6.1.2, SQLite 3.7.4
(with FTS3/FTS4 and RTREE enabled), and ncursesw 5.5 (wide-char
support enabled).
- Don't run pgen twice when using make -j.
- Issue #7716: Under Solaris, don't assume existence of /usr/xpg4/bin/grep in
the configure script but use $GREP instead. Patch by Fabian Groffen.
- Issue #10475: Don't hardcode compilers for LDSHARED/LDCXXSHARED on NetBSD
and DragonFly BSD. Patch by Nicolas Joly.
- Issue #10655: Fix the build on PowerPC on Linux with GCC when building with
timestamp profiling (--with-tsc): the preprocessor test for the PowerPC
support now looks for "__powerpc__" as well as "__ppc__": the latter seems to
only be present on OS X; the former is the correct one for Linux with GCC.
- Issue #1099: Fix the build on MacOSX when building a framework with pydebug
using GCC 4.0.
IDLE
----
- Issue #11718: IDLE's open module dialog couldn't find the __init__.py
file in a package.
Tests
-----
- Issue #12205: Fix test_subprocess failure due to uninstalled test data.
- Issue #5723: Improve json tests to be executed with and without accelerations.
- Issue #11910: Fix test_heapq to skip the C tests when _heapq is missing.
- Fix test_startfile to wait for child process to terminate before finishing.
- Issue #11719: Fix message about unexpected test_msilib skip on non-Windows
platforms. Patch by Nadeem Vawda.
- Issue #7108: Fix test_commands to not fail when special attributes ('@'
or '.') appear in 'ls -l' output.
- Issue #11490: test_subprocess:test_leaking_fds_on_error no longer gives a
false positive if the last directory in the path is inaccessible.
- Issue #10822: Fix test_posix:test_getgroups failure under Solaris. Patch
by Ross Lagerwall.
- Issue #6293: Have regrtest.py echo back sys.flags. This is done by default
in whole runs and enabled selectively using ``--header`` when running an
explicit list of tests. Original patch by Collin Winter.
- Issue #775964: test_grp now skips YP/NIS entries instead of failing when
encountering them.
- Issue #7110: regrtest now sends test failure reports and single-failure
tracebacks to stderr rather than stdout.
|
|
Python 2.7 is intended to be the last major release in the 2.x series.
The Python maintainers are planning to focus their future efforts on
the Python 3.x series.
This means that 2.7 will remain in place for a long time, running
production systems that have not been ported to Python 3.x.
Two consequences of the long-term significance of 2.7 are:
* It's very likely the 2.7 release will have a longer period of
maintenance compared to earlier 2.x versions. Python 2.7 will
continue to be maintained while the transition to 3.x continues, and
the developers are planning to support Python 2.7 with bug-fix
releases beyond the typical two years.
* A policy decision was made to silence warnings only of interest to
developers. :exc:`DeprecationWarning` and its
descendants are now ignored unless otherwise requested, preventing
users from seeing warnings triggered by an application. This change
was also made in the branch that will become Python 3.2. (Discussed
on stdlib-sig and carried out in :issue:`7319`.)
In previous releases, :exc:`DeprecationWarning` messages were
enabled by default, providing Python developers with a clear
indication of where their code may break in a future major version
of Python.
However, there are increasingly many users of Python-based
applications who are not directly involved in the development of
those applications. :exc:`DeprecationWarning` messages are
irrelevant to such users, making them worry about an application
that's actually working correctly and burdening application developers
with responding to these concerns.
You can re-enable display of :exc:`DeprecationWarning` messages by
running Python with the :option:`-Wdefault <-W>` (short form:
:option:`-Wd <-W>`) switch, or by setting the :envvar:`PYTHONWARNINGS`
environment variable to ``"default"`` (or ``"d"``) before running
Python. Python code can also re-enable them
by calling ``warnings.simplefilter('default')``.
|
