Mailman 3 September 2016 - Python-Dev

Installation Error
by Trevon Bizzle Sept. 10, 2016

Sept. 10, 2016

Good evening! I tried downloading Python yesterday and was met with some success. I have been searching for solutions but can not seem to find one. Each time I try to run python an error occurs saying; python.exe - System Error The program can't start because api-ms-win-crt-runtime-l1-1-0.dll is missing from your computer. Try reinstalling the program to fix this problem. My friend and I tried at our school and was met no success in obtaining the program. I am attempting to run python on a CQ60-615DX Notebook. Any help would be appreciated. Thanks! -- Emails and other correspondence to and from Paradise Valley School District are subject to public disclosure, upon request, according to Arizona Public Records Law (A.R.S. §39-121, et seq.) and corresponding State records retention requirements, unless the content is specifically exempt from disclosure by a state or federal law.

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sys.path file feature
by Wolfgang Sept. 10, 2016

Sept. 10, 2016

Hi, tracking the commit log I have noticed for Windows there was added a new feature which is very interesting and can also be useful for other platforms. If I read it right it supports adding a sys.path text file near the executable to specify the Python sys.path variable and overwriting the default behavior. https://hg.python.org/cpython/rev/03517dd54977 This change is only for Windows (if I read right). But I think it is thus valuable to add this in common as general rule. This also simplifies and unifies virtual environment creating and standalone redistribution. Also I have one remaining question, is the "*.pth" file handling then disabled by this feature? If yes, can this be a problem in a virtual environment if a package uses a pth file installed in the virtual environment site-packages directory? Overall I think this is a great addition and the start to unify sys.path handling. And a good feature for redistribution of a Python interpreter without an installation. (Embedding, virtual environments, fat virtual environments, ...) Regards, Wolfgang

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PEP 467: last round (?)
by Ethan Furman Sept. 10, 2016

Sept. 10, 2016

One more iteration. PEPs repo not updated yet. Changes are renaming of methods to be ``fromsize()`` and ``fromord()``, and moving ``memoryview`` to an Open Questions section. PEP: 467 Title: Minor API improvements for binary sequences Version: $Revision$ Last-Modified: $Date$ Author: Nick Coghlan <ncoghlan(a)gmail.com>, Ethan Furman <ethan(a)stoneleaf.us> Status: Draft Type: Standards Track Content-Type: text/x-rst Created: 2014-03-30 Python-Version: 3.6 Post-History: 2014-03-30 2014-08-15 2014-08-16 2016-06-07 2016-09-01 Abstract ======== During the initial development of the Python 3 language specification, the core ``bytes`` type for arbitrary binary data started as the mutable type that is now referred to as ``bytearray``. Other aspects of operating in the binary domain in Python have also evolved over the course of the Python 3 series. This PEP proposes five small adjustments to the APIs of the ``bytes`` and ``bytearray`` types to make it easier to operate entirely in the binary domain: * Deprecate passing single integer values to ``bytes`` and ``bytearray`` * Add ``bytes.fromsize`` and ``bytearray.fromsize`` alternative constructors * Add ``bytes.fromord`` and ``bytearray.fromord`` alternative constructors * Add ``bytes.getbyte`` and ``bytearray.getbyte`` byte retrieval methods * Add ``bytes.iterbytes`` and ``bytearray.iterbytes`` alternative iterators Proposals ========= Deprecation of current "zero-initialised sequence" behaviour without removal ---------------------------------------------------------------------------- Currently, the ``bytes`` and ``bytearray`` constructors accept an integer argument and interpret it as meaning to create a zero-initialised sequence of the given size:: >>> bytes(3) b'\x00\x00\x00' >>> bytearray(3) bytearray(b'\x00\x00\x00') This PEP proposes to deprecate that behaviour in Python 3.6, but to leave it in place for at least as long as Python 2.7 is supported, possibly indefinitely. No other changes are proposed to the existing constructors. Addition of explicit "count and byte initialised sequence" constructors ----------------------------------------------------------------------- To replace the deprecated behaviour, this PEP proposes the addition of an explicit ``fromsize`` alternative constructor as a class method on both ``bytes`` and ``bytearray`` whose first argument is the count, and whose second argument is the fill byte to use (defaults to ``\x00``):: >>> bytes.fromsize(3) b'\x00\x00\x00' >>> bytearray.fromsize(3) bytearray(b'\x00\x00\x00') >>> bytes.fromsize(5, b'\x0a') b'\x0a\x0a\x0a\x0a\x0a' >>> bytearray.fromsize(5, b'\x0a') bytearray(b'\x0a\x0a\x0a\x0a\x0a') ``fromsize`` will behave just as the current constructors behave when passed a single integer, while allowing for non-zero fill values when needed. Addition of "bchr" function and explicit "single byte" constructors ------------------------------------------------------------------- As binary counterparts to the text ``chr`` function, this PEP proposes the addition of a ``bchr`` function and an explicit ``fromord`` alternative constructor as a class method on both ``bytes`` and ``bytearray``:: >>> bchr(ord("A")) b'A' >>> bchr(ord(b"A")) b'A' >>> bytes.fromord(65) b'A' >>> bytearray.fromord(65) bytearray(b'A') These methods will only accept integers in the range 0 to 255 (inclusive):: >>> bytes.fromord(512) Traceback (most recent call last): File "<stdin>", line 1, in <module> ValueError: integer must be in range(0, 256) >>> bytes.fromord(1.0) Traceback (most recent call last): File "<stdin>", line 1, in <module> TypeError: 'float' object cannot be interpreted as an integer While this does create some duplication, there are valid reasons for it:: * the ``bchr`` builtin is to recreate the ord/chr/unichr trio from Python 2 under a different naming scheme * the class method is mainly for the ``bytearray.fromord`` case, with ``bytes.fromord`` added for consistency The documentation of the ``ord`` builtin will be updated to explicitly note that ``bchr`` is the primary inverse operation for binary data, while ``chr`` is the inverse operation for text data, and that ``bytes.fromord`` and ``bytearray.fromord`` also exist. Behaviourally, ``bytes.fromord(x)`` will be equivalent to the current ``bytes([x])`` (and similarly for ``bytearray``). The new spelling is expected to be easier to discover and easier to read (especially when used in conjunction with indexing operations on binary sequence types). As a separate method, the new spelling will also work better with higher order functions like ``map``. Addition of "getbyte" method to retrieve a single byte ------------------------------------------------------ This PEP proposes that ``bytes`` and ``bytearray`` gain the method ``getbyte`` which will always return ``bytes``:: >>> b'abc'.getbyte(0) b'a' If an index is asked for that doesn't exist, ``IndexError`` is raised:: >>> b'abc'.getbyte(9) Traceback (most recent call last): File "<stdin>", line 1, in <module> IndexError: index out of range Addition of optimised iterator methods that produce ``bytes`` objects --------------------------------------------------------------------- This PEP proposes that ``bytes`` and ``bytearray``gain an optimised ``iterbytes`` method that produces length 1 ``bytes`` objects rather than integers:: for x in data.iterbytes(): # x is a length 1 ``bytes`` object, rather than an integer For example:: >>> tuple(b"ABC".iterbytes()) (b'A', b'B', b'C') Design discussion ================= Why not rely on sequence repetition to create zero-initialised sequences? ------------------------------------------------------------------------- Zero-initialised sequences can be created via sequence repetition:: >>> b'\x00' * 3 b'\x00\x00\x00' >>> bytearray(b'\x00') * 3 bytearray(b'\x00\x00\x00') However, this was also the case when the ``bytearray`` type was originally designed, and the decision was made to add explicit support for it in the type constructor. The immutable ``bytes`` type then inherited that feature when it was introduced in PEP 3137. This PEP isn't revisiting that original design decision, just changing the spelling as users sometimes find the current behaviour of the binary sequence constructors surprising. In particular, there's a reasonable case to be made that ``bytes(x)`` (where ``x`` is an integer) should behave like the ``bytes.fromint(x)`` proposal in this PEP. Providing both behaviours as separate class methods avoids that ambiguity. Open Questions ============== Do we add ``iterbytes`` to ``memoryview``, or modify ``memoryview.cast()`` to accept ``'s'`` as a single-byte interpretation? Or do we ignore memory for now and add it later? References ========== .. [1] Initial March 2014 discussion thread on python-ideas (https://mail.python.org/pipermail/python-ideas/2014-March/027295.html) .. [2] Guido's initial feedback in that thread (https://mail.python.org/pipermail/python-ideas/2014-March/027376.html) .. [3] Issue proposing moving zero-initialised sequences to a dedicated API (http://bugs.python.org/issue20895) .. [4] Issue proposing to use calloc() for zero-initialised binary sequences (http://bugs.python.org/issue21644) .. [5] August 2014 discussion thread on python-dev (https://mail.python.org/pipermail/python-ideas/2014-March/027295.html) .. [6] June 2016 discussion thread on python-dev (https://mail.python.org/pipermail/python-dev/2016-June/144875.html) Copyright ========= This document has been placed in the public domain.

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Changes to PEP 498 (f-strings)
by Eric V. Smith Sept. 10, 2016

Sept. 10, 2016

After a long discussion on python-ideas (starting at https://mail.python.org/pipermail/python-ideas/2016-August/041727.html) I'm proposing the following change to PEP 498: backslashes inside brackets will be disallowed. The point of this is to disallow convoluted code like: >>> d = {'a': 4} >>> f'{d[\'a\']}' '4' In addition, I'll disallow escapes to be used for brackets, as in: >>> f'\x7bd["a"]}' '4' (where chr(0x7b) == "{"). Because we're so close to 3.6 beta 1, my plan is to: 1. Modify the PEP to reflect these restrictions. 2. Modify the code to prevent _any_ backslashes inside f-strings. This is a more restrictive change than the PEP will describe, but it's much easier to implement. After beta 1, and hopefully before beta 2, I will implement the restrictions as I've outlined above (and as they will be documented in the PEP). The net effects are: a. Some code that works in the alphas won't work in beta 1. I'll document this. b. All code that's valid in beta 1 will work in beta 2, and some f-strings that are syntax errors in beta 1 will work in beta 2. I've discussed this issue with Ned and Guido, who are okay with these changes. The python-ideas thread I referenced above has some discussion about further changes to f-strings. Those proposals are outside the scope of 3.6, but the changes I'm putting forth here will allow for those additional changes, should we decide to make them. That's a discussion for 3.7, however. I'm sending this email out just to notify people of this upcoming change. I hope this won't generate much discussion. If you feel the need to discuss this issue further, please use the python-ideas thread (where some people are already ignoring it!). Eric.

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Re: [Python-Dev] [Python-checkins] cpython: make invalid_comma_and_underscore a real prototype
by Eric V. Smith Sept. 10, 2016

Sept. 10, 2016

Oops, thanks Benjamin. That was a copy and paste error. Eric. On 9/9/2016 11:15 PM, benjamin.peterson wrote: > https://hg.python.org/cpython/rev/1e7b636b6009 > changeset: 103539:1e7b636b6009 > user: Benjamin Peterson <benjamin(a)python.org> > date: Fri Sep 09 20:14:05 2016 -0700 > summary: > make invalid_comma_and_underscore a real prototype > > files: > Python/formatter_unicode.c | 2 +- > 1 files changed, 1 insertions(+), 1 deletions(-) > > > diff --git a/Python/formatter_unicode.c b/Python/formatter_unicode.c > --- a/Python/formatter_unicode.c > +++ b/Python/formatter_unicode.c > @@ -41,7 +41,7 @@ > } > > static void > -invalid_comma_and_underscore() > +invalid_comma_and_underscore(void) > { > PyErr_Format(PyExc_ValueError, "Cannot specify both ',' and '_'."); > } > > > > _______________________________________________ > Python-checkins mailing list > Python-checkins(a)python.org > https://mail.python.org/mailman/listinfo/python-checkins >

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Porting buildbot to Python 3
by Craig Rodrigues Sept. 9, 2016

Sept. 9, 2016

Hi, It's not essential, but I thought it would be nice to port buildbot to Python 3. I've managed to submit multiple simple patches to buildbot, which were quickly accepted: https://github.com/buildbot/buildbot/pulls/rodrigc?q=is%3Apr+is%3Aclosed Now things are more slow going as the easy stuff is out of the way and I am submitting more complicated things: https://github.com/buildbot/buildbot/pulls/rodrigc Is there anyone on python-dev who has the interest and free cycles to push Python 3 fixes to the buildbot team? Thanks. -- Craig

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Summary of Python tracker Issues
by Python tracker Sept. 9, 2016

Sept. 9, 2016

ACTIVITY SUMMARY (2016-09-02 - 2016-09-09) Python tracker at http://bugs.python.org/ To view or respond to any of the issues listed below, click on the issue. Do NOT respond to this message. Issues counts and deltas: open 5568 (-62) closed 34233 (+166) total 39801 (+104) Open issues with patches: 2402 Issues opened (64) ================== #17602: mingw: default sys.path calculations for windows platforms http://bugs.python.org/issue17602 reopened by martin.panter #26513: platform.win32_ver() broken in 2.7.11 http://bugs.python.org/issue26513 reopened by steve.dower #27778: PEP 524: Add os.getrandom() http://bugs.python.org/issue27778 reopened by martin.panter #27938: PyUnicode_AsEncodedString, PyUnicode_Decode: add fast-path for http://bugs.python.org/issue27938 reopened by haypo #27942: Default value identity regression http://bugs.python.org/issue27942 opened by Kay.Hayen #27943: pstats.Stats: missing the source OS setting argument in strip_ http://bugs.python.org/issue27943 opened by Jaroslav #27945: Various segfaults with dict http://bugs.python.org/issue27945 opened by tehybel #27946: issues in elementtree and elsewhere due to PyDict_GetItem http://bugs.python.org/issue27946 opened by tehybel #27948: f-strings: allow backslashes only in the string parts, not in http://bugs.python.org/issue27948 opened by eric.smith #27950: Superfluous messages when running make http://bugs.python.org/issue27950 opened by xiang.zhang #27951: the reply's additional "Re:" is ok http://bugs.python.org/issue27951 opened by saifmega #27952: Finish converting fixcid.py from regex to re http://bugs.python.org/issue27952 opened by serhiy.storchaka #27954: makesetup does not take into account subdirectories http://bugs.python.org/issue27954 opened by David D #27955: getrandom() syscall returning EPERM make the system unusable. http://bugs.python.org/issue27955 opened by iwings #27963: null poiter dereference in set_conversion_mode due uncheck _ct http://bugs.python.org/issue27963 opened by minhrau #27965: Automatic .py extension when saving with IDLE on OSX http://bugs.python.org/issue27965 opened by InfiniteHybrid #27966: PEP-397 documents incorrect registry path http://bugs.python.org/issue27966 opened by mhammond #27971: utf-16 decoding can't handle lone surrogates http://bugs.python.org/issue27971 opened by lazka #27972: Confusing error during cyclic yield http://bugs.python.org/issue27972 opened by Max von Tettenborn #27973: urllib.urlretrieve() fails on second ftp transfer http://bugs.python.org/issue27973 opened by Sohaib Ahmad #27976: Deprecate building with bundled copy of libffi on non-Darwin P http://bugs.python.org/issue27976 opened by zach.ware #27977: smtplib send_message does not correctly handle unicode address http://bugs.python.org/issue27977 opened by r.david.murray #27978: Executor#shutdown with timeout http://bugs.python.org/issue27978 opened by Patrik Dufresne #27979: Remove bundled libffi http://bugs.python.org/issue27979 opened by zach.ware #27981: Reference leak in fp_setreadl() of Parser/tokenizer.c http://bugs.python.org/issue27981 opened by haypo #27984: singledispatch register should typecheck its argument http://bugs.python.org/issue27984 opened by amogorkon #27986: make distclean clobbers Lib/plat-darwin/* http://bugs.python.org/issue27986 opened by zach.ware #27987: obmalloc's 8-byte alignment causes undefined behavior http://bugs.python.org/issue27987 opened by benjamin.peterson #27989: incomplete signature with help function using typing http://bugs.python.org/issue27989 opened by David E. Franco G. #27990: Provide a way to enable getrandom on Linux even when build sys http://bugs.python.org/issue27990 opened by ncoghlan #27991: In the argparse howto there is a misleading sentence about sto http://bugs.python.org/issue27991 opened by py.user #27992: In the argparse there is a misleading words about %(prog)s val http://bugs.python.org/issue27992 opened by py.user #27994: In the argparse help(argparse) prints weird comments instead o http://bugs.python.org/issue27994 opened by py.user #27995: Upgrade Python 3.4 to OpenSSL 1.0.2h on Windows http://bugs.python.org/issue27995 opened by scw #27997: ImportError should be raised consistently from import machiner http://bugs.python.org/issue27997 opened by eric.snow #27998: Remove support of bytes paths in os.scandir() http://bugs.python.org/issue27998 opened by serhiy.storchaka #27999: Make "global after use" a SyntaxError http://bugs.python.org/issue27999 opened by levkivskyi #28000: Build fails on AIX with _LINUX_SOURCE_COMPAT flag http://bugs.python.org/issue28000 opened by sarterm #28001: test.support.open_urlresource should work from an installed Py http://bugs.python.org/issue28001 opened by zach.ware #28002: Some f-strings do not round trip through Tools/parser/test_unp http://bugs.python.org/issue28002 opened by eric.smith #28004: Optimize bytes.join(sequence) http://bugs.python.org/issue28004 opened by haypo #28007: Bad .pyc files prevent import of otherwise valid .py files. http://bugs.python.org/issue28007 opened by eric.snow #28008: PEP 530, asynchronous comprehensions implementation http://bugs.python.org/issue28008 opened by yselivanov #28009: core logic of uuid.getnode() is broken for AIX - all versions http://bugs.python.org/issue28009 opened by Michael.Felt #28015: configure --with-lto builds fail when CC=clang on Linux, requi http://bugs.python.org/issue28015 opened by gregory.p.smith #28016: test_fileio fails on AIX http://bugs.python.org/issue28016 opened by sarterm #28018: Cross compilation fails in regen http://bugs.python.org/issue28018 opened by Chi Hsuan Yen #28019: itertools.count() falls back to fast (integer) mode when step http://bugs.python.org/issue28019 opened by StyXman #28022: SSL releated deprecation for 3.6 http://bugs.python.org/issue28022 opened by christian.heimes #28023: python-gdb.py must be updated for the new Python 3.6 compact d http://bugs.python.org/issue28023 opened by haypo #28024: fileinput causes RecursionErrors when dealing with large numbe http://bugs.python.org/issue28024 opened by josh.r #28025: Use IntEnum and IntFlags in ssl module http://bugs.python.org/issue28025 opened by christian.heimes #28028: Convert warnings to SyntaxWarning in parser http://bugs.python.org/issue28028 opened by serhiy.storchaka #28029: Replace and empty strings http://bugs.python.org/issue28029 opened by Stéphane Henriot #28035: make buildbottest when configured --with-optimizations can cau http://bugs.python.org/issue28035 opened by gregory.p.smith #28036: Remove unused pysqlite_flush_statement_cache function http://bugs.python.org/issue28036 opened by berker.peksag #28037: Use sqlite3_get_autocommit() instead of setting Connection->in http://bugs.python.org/issue28037 opened by berker.peksag #28038: Remove com2ann script (will be in separate repo) http://bugs.python.org/issue28038 opened by levkivskyi #28039: x86 Tiger buildbot needs __future__ with_statement http://bugs.python.org/issue28039 opened by martin.panter #28040: compact dict : SystemError: returned NULL without setting an e http://bugs.python.org/issue28040 opened by mbussonn #28041: Inconsistent behavior: Get st_nlink from os.stat() and os.scan http://bugs.python.org/issue28041 opened by Mohanson Leaf #28042: Coverity Scan defects in new dict code http://bugs.python.org/issue28042 opened by christian.heimes #28043: Sane defaults for SSLContext options and ciphers http://bugs.python.org/issue28043 opened by christian.heimes #28044: Make the sidebar in the documentation follow the section autom http://bugs.python.org/issue28044 opened by batiste Most recent 15 issues with no replies (15) ========================================== #28043: Sane defaults for SSLContext options and ciphers http://bugs.python.org/issue28043 #28042: Coverity Scan defects in new dict code http://bugs.python.org/issue28042 #28041: Inconsistent behavior: Get st_nlink from os.stat() and os.scan http://bugs.python.org/issue28041 #28039: x86 Tiger buildbot needs __future__ with_statement http://bugs.python.org/issue28039 #28037: Use sqlite3_get_autocommit() instead of setting Connection->in http://bugs.python.org/issue28037 #28036: Remove unused pysqlite_flush_statement_cache function http://bugs.python.org/issue28036 #28035: make buildbottest when configured --with-optimizations can cau http://bugs.python.org/issue28035 #28028: Convert warnings to SyntaxWarning in parser http://bugs.python.org/issue28028 #28024: fileinput causes RecursionErrors when dealing with large numbe http://bugs.python.org/issue28024 #28018: Cross compilation fails in regen http://bugs.python.org/issue28018 #28015: configure --with-lto builds fail when CC=clang on Linux, requi http://bugs.python.org/issue28015 #28009: core logic of uuid.getnode() is broken for AIX - all versions http://bugs.python.org/issue28009 #28008: PEP 530, asynchronous comprehensions implementation http://bugs.python.org/issue28008 #28004: Optimize bytes.join(sequence) http://bugs.python.org/issue28004 #28002: Some f-strings do not round trip through Tools/parser/test_unp http://bugs.python.org/issue28002 Most recent 15 issues waiting for review (15) ============================================= #28044: Make the sidebar in the documentation follow the section autom http://bugs.python.org/issue28044 #28043: Sane defaults for SSLContext options and ciphers http://bugs.python.org/issue28043 #28040: compact dict : SystemError: returned NULL without setting an e http://bugs.python.org/issue28040 #28038: Remove com2ann script (will be in separate repo) http://bugs.python.org/issue28038 #28037: Use sqlite3_get_autocommit() instead of setting Connection->in http://bugs.python.org/issue28037 #28036: Remove unused pysqlite_flush_statement_cache function http://bugs.python.org/issue28036 #28029: Replace and empty strings http://bugs.python.org/issue28029 #28025: Use IntEnum and IntFlags in ssl module http://bugs.python.org/issue28025 #28022: SSL releated deprecation for 3.6 http://bugs.python.org/issue28022 #28019: itertools.count() falls back to fast (integer) mode when step http://bugs.python.org/issue28019 #28018: Cross compilation fails in regen http://bugs.python.org/issue28018 #28016: test_fileio fails on AIX http://bugs.python.org/issue28016 #28008: PEP 530, asynchronous comprehensions implementation http://bugs.python.org/issue28008 #28004: Optimize bytes.join(sequence) http://bugs.python.org/issue28004 #28000: Build fails on AIX with _LINUX_SOURCE_COMPAT flag http://bugs.python.org/issue28000 Top 10 most discussed issues (10) ================================= #23591: enum: Add Flags and IntFlags http://bugs.python.org/issue23591 22 msgs #27850: Remove 3DES from cipher list (sweet32 CVE-2016-2183) http://bugs.python.org/issue27850 20 msgs #27928: Add hashlib.scrypt http://bugs.python.org/issue27928 12 msgs #28022: SSL releated deprecation for 3.6 http://bugs.python.org/issue28022 12 msgs #27350: Compact and ordered dict http://bugs.python.org/issue27350 11 msgs #27744: Add AF_ALG (Linux Kernel crypto) to socket module http://bugs.python.org/issue27744 11 msgs #27781: Change sys.getfilesystemencoding() on Windows to UTF-8 http://bugs.python.org/issue27781 11 msgs #1602: windows console doesn't print or input Unicode http://bugs.python.org/issue1602 10 msgs #25856: The __module__ attribute of non-heap classes is not interned http://bugs.python.org/issue25856 10 msgs #27137: Python implementation of `functools.partial` is not a class http://bugs.python.org/issue27137 10 msgs Issues closed (159) =================== #5575: Add env vars for controlling building sqlite, hashlib and ssl http://bugs.python.org/issue5575 closed by christian.heimes #6135: subprocess seems to use local encoding and give no choice http://bugs.python.org/issue6135 closed by steve.dower #6766: Cannot modify dictionaries inside dictionaries using Managers http://bugs.python.org/issue6766 closed by berker.peksag #7672: _ssl module overwrites existing thread safety callbacks http://bugs.python.org/issue7672 closed by christian.heimes #7836: Add /usr/sfw/lib to OpenSSL search path for Solaris. http://bugs.python.org/issue7836 closed by christian.heimes #8106: SSL session management http://bugs.python.org/issue8106 closed by christian.heimes #9423: Error in urllib2.do_open(self, http_class, req) http://bugs.python.org/issue9423 closed by christian.heimes #9743: __call__.__call__ chain cause crash when long enough http://bugs.python.org/issue9743 closed by christian.heimes #10274: imaplib should provide a means to validate a remote server ssl http://bugs.python.org/issue10274 closed by christian.heimes #11551: test_dummy_thread.py test coverage improvement http://bugs.python.org/issue11551 closed by orsenthil #11620: winsound.PlaySound() with SND_MEMORY should accept bytes inste http://bugs.python.org/issue11620 closed by python-dev #11734: Add half-float (16-bit) support to struct module http://bugs.python.org/issue11734 closed by mark.dickinson #12553: Add support for using a default CTE of '8bit' to MIMEText http://bugs.python.org/issue12553 closed by r.david.murray #12754: Add alternative random number generators http://bugs.python.org/issue12754 closed by haypo #13856: xmlrpc / httplib changes to allow for certificate verification http://bugs.python.org/issue13856 closed by christian.heimes #15016: Add special case for latin messages in email.mime.text http://bugs.python.org/issue15016 closed by r.david.murray #15272: pkgutil.find_loader accepts invalid module names http://bugs.python.org/issue15272 closed by eric.snow #15352: importlib.h should be regenerated when the marshaling code cha http://bugs.python.org/issue15352 closed by eric.snow #15578: Crash when modifying sys.modules during import http://bugs.python.org/issue15578 closed by eric.snow #15631: Python 3.3/3.4 installation issue on OpenSUSE lib/lib64 folder http://bugs.python.org/issue15631 closed by christian.heimes #16334: Faster unicode-escape and raw-unicode-escape codecs http://bugs.python.org/issue16334 closed by haypo #16763: test_ssl with connect_ex don't handle unreachable server corre http://bugs.python.org/issue16763 closed by christian.heimes #16764: Make zlib accept keyword-arguments http://bugs.python.org/issue16764 closed by martin.panter #17096: the system keyring should be used instead of ~/.pypirc http://bugs.python.org/issue17096 closed by christian.heimes #17121: SSH upload for distutils http://bugs.python.org/issue17121 closed by christian.heimes #17211: pkgutil.iter_modules and walk_packages should return a namedtu http://bugs.python.org/issue17211 closed by eric.snow #17884: Try to reuse stdint.h types like int32_t http://bugs.python.org/issue17884 closed by benjamin.peterson #18029: Python SSL support is missing from SPARC build http://bugs.python.org/issue18029 closed by christian.heimes #18550: internal_setblocking() doesn't check return value of fcntl() http://bugs.python.org/issue18550 closed by christian.heimes #18844: allow weights in random.choice http://bugs.python.org/issue18844 closed by rhettinger #19057: Sometimes urllib2 raises URLError when trying POST with httpS http://bugs.python.org/issue19057 closed by christian.heimes #19108: Benchmark runner tries to execute external Python command and http://bugs.python.org/issue19108 closed by scoder #20050: distutils should check PyPI certs when connecting to it http://bugs.python.org/issue20050 closed by christian.heimes #20328: mailbox: add method to delete mailbox http://bugs.python.org/issue20328 closed by r.david.murray #20469: ssl.getpeercert() should include extensions http://bugs.python.org/issue20469 closed by christian.heimes #20784: 'collections.abc' is no longer defined when collections is imp http://bugs.python.org/issue20784 closed by christian.heimes #20842: pkgutil docs should reference glossary terms not PEP 302 http://bugs.python.org/issue20842 closed by orsenthil #20924: openssl init 100% CPU utilization on Windows http://bugs.python.org/issue20924 closed by christian.heimes #21062: Evalute all import-related modules for best practices http://bugs.python.org/issue21062 closed by brett.cannon #21201: Uninformative error message in multiprocessing.Manager() http://bugs.python.org/issue21201 closed by davin #21250: sqlite3 doesn't have unit tests for 'insert or [algorithm]' fu http://bugs.python.org/issue21250 closed by berker.peksag #21324: dbhash/bsddb leaks random memory fragments to a database http://bugs.python.org/issue21324 closed by christian.heimes #21830: ssl.wrap_socket fails on Windows 7 when specifying ca_certs http://bugs.python.org/issue21830 closed by christian.heimes #22233: http.client splits headers on non-\r\n characters http://bugs.python.org/issue22233 closed by r.david.murray #22252: ssl blocking IO errors should inherit BlockingIOError http://bugs.python.org/issue22252 closed by christian.heimes #22301: smtplib.SMTP.starttls' documentation is just confusing http://bugs.python.org/issue22301 closed by christian.heimes #23065: Pyhton27.dll at SysWOW64 not updated when updating Python 2.7. http://bugs.python.org/issue23065 closed by christian.heimes #23085: update internal libffi copy to 3.2.1 http://bugs.python.org/issue23085 closed by zach.ware #23177: test_ssl: failures on OpenBSD with LibreSSL http://bugs.python.org/issue23177 closed by christian.heimes #23226: Add float linspace recipe to docs http://bugs.python.org/issue23226 closed by rhettinger #23274: make_ssl_data.py in Python 2.7.9 needs Python 3 to run http://bugs.python.org/issue23274 closed by christian.heimes #23531: SSL operations cause entire process to hang http://bugs.python.org/issue23531 closed by christian.heimes #23843: ssl.wrap_socket doesn't handle virtual TLS hosts http://bugs.python.org/issue23843 closed by christian.heimes #23845: test_ssl: fails on recent libressl with SSLV3_ALERT_HANDSHAKE_ http://bugs.python.org/issue23845 closed by christian.heimes #24254: Make class definition namespace ordered by default http://bugs.python.org/issue24254 closed by eric.snow #24277: Take the new email package features out of provisional status http://bugs.python.org/issue24277 closed by r.david.murray #24542: ssl - SSL_OP_NO_TICKET not reimplemented http://bugs.python.org/issue24542 closed by christian.heimes #24545: Issue with ssl package http://bugs.python.org/issue24545 closed by christian.heimes #24930: test_ssl: try more protocols in test_options() http://bugs.python.org/issue24930 closed by christian.heimes #25158: Python 3.2.2 and 3.5.0 Do not seem compatible with OpenSSL 1.0 http://bugs.python.org/issue25158 closed by christian.heimes #25387: sound_msgbeep doesn't check the return value of MessageBeep http://bugs.python.org/issue25387 closed by zach.ware #25405: User install of 3.5 removes py.exe from C:\Windows http://bugs.python.org/issue25405 closed by steve.dower #25437: Issue with ftplib.FTP_TLS and server forcing SSL connection re http://bugs.python.org/issue25437 closed by christian.heimes #25596: Use scandir() to speed up the glob module http://bugs.python.org/issue25596 closed by serhiy.storchaka #25761: Improve unpickling errors handling http://bugs.python.org/issue25761 closed by serhiy.storchaka #25825: AIX shared library extension modules installation broken http://bugs.python.org/issue25825 closed by martin.panter #25883: python 2.7.11 mod_wsgi regression on windows http://bugs.python.org/issue25883 closed by christian.heimes #26020: set_display evaluation order doesn't match documented behaviou http://bugs.python.org/issue26020 closed by rhettinger #26032: Use scandir() to speed up pathlib globbing http://bugs.python.org/issue26032 closed by serhiy.storchaka #26040: Improve coverage and rigour of test.test_math http://bugs.python.org/issue26040 closed by mark.dickinson #26058: PEP 509: Add ma_version to PyDictObject http://bugs.python.org/issue26058 closed by haypo #26209: TypeError in smtpd module with string arguments http://bugs.python.org/issue26209 closed by r.david.murray #26307: no PGO for built-in modules with `make profile-opt` http://bugs.python.org/issue26307 closed by gregory.p.smith #26359: CPython build options for out-of-the box performance http://bugs.python.org/issue26359 closed by gregory.p.smith #26470: Make OpenSSL module compatible with OpenSSL 1.1.0 http://bugs.python.org/issue26470 closed by christian.heimes #26667: Update importlib to accept pathlib.Path objects http://bugs.python.org/issue26667 closed by brett.cannon #26798: add BLAKE2 to hashlib http://bugs.python.org/issue26798 closed by christian.heimes #26982: Clarify forward annotations in PEP 484 http://bugs.python.org/issue26982 closed by gvanrossum #27078: Make f'' strings faster than .format: BUILD_STRING opcode? http://bugs.python.org/issue27078 closed by serhiy.storchaka #27106: configparser.__all__ is incomplete http://bugs.python.org/issue27106 closed by martin.panter #27179: subprocess uses wrong encoding on Windows http://bugs.python.org/issue27179 closed by steve.dower #27279: Add random.cryptorandom() and random.pseudorandom, deprecate o http://bugs.python.org/issue27279 closed by ncoghlan #27288: secrets should use getrandom() on Linux http://bugs.python.org/issue27288 closed by ncoghlan #27293: Summarize issues related to urandom, getrandom etc in secrets http://bugs.python.org/issue27293 closed by ncoghlan #27331: Add a policy argument to email.mime.MIMEBase http://bugs.python.org/issue27331 closed by r.david.murray #27355: Strip out the last lingering vestiges of Windows CE support http://bugs.python.org/issue27355 closed by larry #27364: Deprecate invalid escape sequences in str/bytes http://bugs.python.org/issue27364 closed by ebarry #27407: prepare_ssl.py missing in PCBuild folder http://bugs.python.org/issue27407 closed by python-dev #27427: Add new math module tests http://bugs.python.org/issue27427 closed by mark.dickinson #27445: Charset instance not passed to set_payload() http://bugs.python.org/issue27445 closed by berker.peksag #27570: Avoid memcpy(. . ., NULL, 0) etc calls http://bugs.python.org/issue27570 closed by martin.panter #27630: Generator._encoded_EMTPY misspelling in email package http://bugs.python.org/issue27630 closed by r.david.murray #27691: X509 cert with GEN_RID subject alt name causes SytemError http://bugs.python.org/issue27691 closed by christian.heimes #27731: Opt-out of MAX_PATH on Windows 10 http://bugs.python.org/issue27731 closed by steve.dower #27748: Simplify test_winsound http://bugs.python.org/issue27748 closed by python-dev #27756: Add pyd icon for 3.6 http://bugs.python.org/issue27756 closed by steve.dower #27776: PEP 524: Make os.urandom() blocking on Linux http://bugs.python.org/issue27776 closed by haypo #27811: _PyGen_Finalize() should not fail with an exception http://bugs.python.org/issue27811 closed by python-dev #27812: PyFrameObject.f_gen can be left pointing to a dangling generat http://bugs.python.org/issue27812 closed by python-dev #27853: Add title to examples in importlib docs http://bugs.python.org/issue27853 closed by brett.cannon #27866: ssl: get list of enabled ciphers http://bugs.python.org/issue27866 closed by berker.peksag #27868: Unconditionally state when a build succeeds http://bugs.python.org/issue27868 closed by brett.cannon #27872: Update os/os.path docs to mention path-like object support http://bugs.python.org/issue27872 closed by brett.cannon #27877: Add recipe for "valueless" Enums to docs http://bugs.python.org/issue27877 closed by berker.peksag #27881: Fix possible bugs when setting sqlite3.Connection.isolation_le http://bugs.python.org/issue27881 closed by berker.peksag #27883: Update sqlite version for Windows build http://bugs.python.org/issue27883 closed by zach.ware #27905: Add documentation for typing.Type http://bugs.python.org/issue27905 closed by gvanrossum #27911: Unnecessary error checks in exec_builtin_or_dynamic http://bugs.python.org/issue27911 closed by brett.cannon #27915: Use 'ascii' instead of 'us-ascii' to bypass lookup machinery http://bugs.python.org/issue27915 closed by haypo #27918: Running test suites without gui but still having windows flash http://bugs.python.org/issue27918 closed by terry.reedy #27921: f-strings: do not allow backslashes http://bugs.python.org/issue27921 closed by python-dev #27930: logging's QueueListener drops log messages http://bugs.python.org/issue27930 closed by python-dev #27935: logging level FATAL missing in _nameToLevel http://bugs.python.org/issue27935 closed by python-dev #27936: Inconsistent round behavior between float and int http://bugs.python.org/issue27936 closed by rhettinger #27937: logging.getLevelName microoptimization http://bugs.python.org/issue27937 closed by python-dev #27941: Bad error message from Decimal('garbage') across the py3 range http://bugs.python.org/issue27941 closed by skrah #27944: two hotshot module issues http://bugs.python.org/issue27944 closed by python-dev #27947: Trailing backslash in raw string format causes EOL http://bugs.python.org/issue27947 closed by tim.peters #27949: Fix description in bytes literal doc http://bugs.python.org/issue27949 closed by xiang.zhang #27953: math.tan has poor accuracy near pi/2 on OS X Tiger http://bugs.python.org/issue27953 closed by mark.dickinson #27956: optimize dict_traverse a bit http://bugs.python.org/issue27956 closed by python-dev #27957: minor typo in importlib docs http://bugs.python.org/issue27957 closed by python-dev #27958: 'zlib compression' not found in set(['RLE', 'ZLIB', None]) http://bugs.python.org/issue27958 closed by christian.heimes #27959: Add 'oem' encoding http://bugs.python.org/issue27959 closed by steve.dower #27960: Distutils tests are broken in 3.4 http://bugs.python.org/issue27960 closed by jason.coombs #27961: remove support for platforms without "long long" http://bugs.python.org/issue27961 closed by python-dev #27962: null poiter dereference in set_conversion_mode due uncheck _ct http://bugs.python.org/issue27962 closed by eryksun #27964: Add random.shuffled http://bugs.python.org/issue27964 closed by rhettinger #27967: Remove unused variables causing compile warnings in sqlite3 mo http://bugs.python.org/issue27967 closed by python-dev #27968: test_coroutines generates some warnings http://bugs.python.org/issue27968 closed by python-dev #27969: Suppress unnecessary message when running test_gdb http://bugs.python.org/issue27969 closed by python-dev #27970: ssl: can't verify a trusted site with imcomplete certificate c http://bugs.python.org/issue27970 closed by christian.heimes #27974: Remove dead code in importlib._bootstrap http://bugs.python.org/issue27974 closed by brett.cannon #27975: math.isnan(int) and math.isinf(int) should not raise OverflowE http://bugs.python.org/issue27975 closed by mark.dickinson #27980: Add better pythonw support to py launcher http://bugs.python.org/issue27980 closed by eryksun #27982: Allow keyword arguments in winsound http://bugs.python.org/issue27982 closed by python-dev #27983: "Cannot perform PGO build because llvm-profdata was not found http://bugs.python.org/issue27983 closed by gregory.p.smith #27985: Implement PEP 526 http://bugs.python.org/issue27985 closed by yselivanov #27988: email iter_attachments can mutate the payload http://bugs.python.org/issue27988 closed by r.david.murray #27993: In the argparse there are typos with endings in plural words http://bugs.python.org/issue27993 closed by martin.panter #27996: Python 3 ssl module can't use a fileno to create a SSLSocket http://bugs.python.org/issue27996 closed by berker.peksag #28003: PEP 525 asynchronous generators implementation http://bugs.python.org/issue28003 closed by yselivanov #28005: Broken encoding modules are silently skipped. http://bugs.python.org/issue28005 closed by steve.dower #28006: Remove tracing overhead from the fine-grained fast opcodes http://bugs.python.org/issue28006 closed by rhettinger #28010: http.client.HTTPConnection.putrequest incorrect arguments http://bugs.python.org/issue28010 closed by orsenthil #28011: winreg KEY_READ also fails for some keys http://bugs.python.org/issue28011 closed by eryksun #28012: Spam http://bugs.python.org/issue28012 closed by berker.peksag #28013: PPC64 Fedora socket and ssl compile failure http://bugs.python.org/issue28013 closed by christian.heimes #28014: Strange interaction between methods in subclass of C OrderedDi http://bugs.python.org/issue28014 closed by zach.ware #28017: bluetooth.h on big endian needs GNU C extensions http://bugs.python.org/issue28017 closed by christian.heimes #28020: Python 3 logging HTTPHandler doesn't implement a standard http http://bugs.python.org/issue28020 closed by SilentGhost #28021: Calculating wrong modulus manually http://bugs.python.org/issue28021 closed by steven.daprano #28026: module_from_spec() should raise an error in 3.6 http://bugs.python.org/issue28026 closed by eric.snow #28027: Remove Lib/plat-*/* files http://bugs.python.org/issue28027 closed by zach.ware #28030: Update the language reference for PEP 468. http://bugs.python.org/issue28030 closed by eric.snow #28031: Update pathlib.resolve() to match os.path.realpath() http://bugs.python.org/issue28031 closed by brett.cannon #28032: --with-lto builds segfault in many situations http://bugs.python.org/issue28032 closed by gregory.p.smith #28033: dictobject.c comment misspelling http://bugs.python.org/issue28033 closed by berker.peksag #28034: local var in "for v in iter" modify the uplevel var value. http://bugs.python.org/issue28034 closed by r.david.murray

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Review request: issue 27350, compact ordered dict
by INADA Naoki Sept. 9, 2016

Sept. 9, 2016

Hi, devs. I've implemented compact and ordered dictionary [1], which PyPy implemented in 2015 [2]. Since it is my first large patch, I would like to have enough time for review cycle by Python 3.6 beta1. Could someone review it? [1] http://bugs.python.org/issue27350 [2] https://morepypy.blogspot.jp/2015/01/faster-more-memory-efficient-and-more.… -- INADA Naoki <songofacandy(a)gmail.com>

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IMPORTANT: 3.6.0b1 and feature code cutoff 2016-09-12 12:00 UTC
by Ned Deily Sept. 8, 2016

Sept. 8, 2016

Happy end of summer (northern hemisphere) or winter (southern)! Along with the changing of the seasons, the time has come to finish feature development for Python 3.6. As previously announced, this coming Monday marks the end of the alpha phase of the release cycle and the beginning of the beta phase. Up through the alpha phase, there has been unrestricted feature development phase; that ends as of beta 1. All feature code for 3.6.0 must be checked in by the b1 cutoff on Monday (unless you have contacted me and we have agreed on an extension). As was done during the 3.5 release cycle, we will create the 3.6 branch at b1 time. During the beta phase, the emphasis is on fixes for new features, fixes for all categories of bugs and regressions, and documentation fixes/updates. I will send out specific information for core committers next week after the creation of the b1 tag and the 3.6 branch. Beta releases are intended to give the wider community the opportunity to test new features and bug fixes and to prepare their projects to support the new feature release. We strongly encourage maintainers of third-party Python projects to test with 3.6 during the beta phase and report issues found to bugs.python.org as soon as possible. While the release will be feature complete entering the beta phase, it is possible that features may be modified or, in rare cases, deleted up until the start of the release candidate phase. Our goal is have no changes after rc1. To achieve that, it will be extremely important to get as much exposure for 3.6 as possible during the beta phase. To recap: 2016-09-12 ~12:00 UTC: code snapshot for 3.6.0 beta 1 (feature code freeze, no new features) 2016-09-12 3.6 branch opens for 3.6.0; 3.7.0 feature development begins 2016-09-12 to 2016-12-04: 3.6.0 beta phase (bug, regression, and doc fixes, no new features) 2016-12-04 3.6.0 release candidate 1 (3.6.0 code freeze) 2016-12-16 3.6.0 release (3.6.0rc1 plus, if necessary, any dire emergency fixes) 2018-06 3.7.0 release (3.6.0 release + 18 months, details TBD) Thank you all for your great efforts so far on 3.6; it should be a great release! --Ned https://www.python.org/dev/peps/pep-0494/ -- Ned Deily nad(a)python.org -- []

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(some) C99 added to PEP 7
by Benjamin Peterson Sept. 8, 2016

Sept. 8, 2016

To conclude our discussion about using C99 features, I've updated PEP 7 to allow the following features: - Standard integer types in ``<stdint.h>`` and ``<inttypes.h>`` - ``static inline`` functions - designated initializers - intermingled declarations - booleans I've been adding examples of these to 3.6 over the last few days to make sure the buildbots will like it. https://github.com/python/peps/commit/b6efe6e06fa70e8933440da26474a804fb3ed… Enjoy.

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