Python-Dev November 2018

python-dev@python.org

64 participants
31 discussions

by Rémi Lapeyre

Hi, I’m working on the tarfile module to add support for file objects whose size is not know beforehand (https://bugs.python.org/issue35227). In doing so, I need to adapt `tarfile.copyfileobj` to return the length of the file after it has been copied. Calling this function with `length=None` currently leads to data being copied but without adding the necessary padding. This seems weird to me, I do not understand why this would be needed and this behaviour is currently not used. This function is not documented in Python documentation so nobody is probably using it. Can I safely change `tarfile.copyfileobj` to make it write the padding when `length=None`? Thanks, Rémi

2 years, 4 months

C API changes

by Stefan Krah

Armin Rigo wrote: > The C API would change a lot, so it's not reasonable to do that in the > CPython repo. But it could be a third-party project, attempting to > define an API like this and implement it well on top of both CPython > and PyPy. IMHO this might be a better idea than just changing the API > of functions defined long ago to make them more regular (e.g. stop > returning borrowed references); by now this would mostly mean creating > more work for the PyPy team to track and adapt to the changes, with no > real benefits. I like this idea. For example, when writing two versions of a C module, one that uses CPython internals indiscriminately and another that uses a "clean" API, such a third-party project would help. I'd also be more motivated to write two versions if I know that the project is supported by PyPy devs. Do you think that such an API might be faster than CFFI on PyPy? Stefan Krah

2 years, 4 months

Summary of Python tracker Issues

by Python tracker

ACTIVITY SUMMARY (2018-11-16 - 2018-11-23) Python tracker at https://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 6865 ( +2) closed 40187 (+33) total 47052 (+35) Open issues with patches: 2735 Issues opened (27) ================== #35148: cannot activate a venv environment on a Swiss German windows https://bugs.python.org/issue35148 reopened by vinay.sajip #35267: reproducible deadlock with multiprocessing.Pool https://bugs.python.org/issue35267 opened by dzhu #35268: Windows asyncio reading continously stdin and stdout Stockfish https://bugs.python.org/issue35268 opened by Cezary.Wagner #35270: Cmd.complete does not handle cmd=None https://bugs.python.org/issue35270 opened by blueyed #35271: venv creates pyvenv.cfg with wrong home https://bugs.python.org/issue35271 opened by wvxvw #35272: sqlite3 get the connected database url https://bugs.python.org/issue35272 opened by midnio #35276: Document thread safety https://bugs.python.org/issue35276 opened by vstinner #35277: Upgrade bundled pip/setuptools https://bugs.python.org/issue35277 opened by dstufft #35278: [security] directory traversal in tempfile prefix https://bugs.python.org/issue35278 opened by Yusuke Endoh #35279: asyncio uses too many threads by default https://bugs.python.org/issue35279 opened by Vojtěch Boček #35280: Interactive shell overwrites history https://bugs.python.org/issue35280 opened by dingens #35281: Allow access to unittest.TestSuite tests https://bugs.python.org/issue35281 opened by lbenezriravin #35282: Add a return value to lib2to3.refactor.refactor_file and refac https://bugs.python.org/issue35282 opened by martindemello #35283: "threading._DummyThread" redefines "is_alive" but forgets "isA https://bugs.python.org/issue35283 opened by dmaurer #35284: Incomplete error handling in Python/compile.c:compiler_call() https://bugs.python.org/issue35284 opened by ZackerySpytz #35285: Make Proactor api extensible for reasonably any file handle https://bugs.python.org/issue35285 opened by Ignas Brašiškis #35286: wrong result for difflib.SequenceMatcher https://bugs.python.org/issue35286 opened by Boris Yang #35291: duplicate of memoryview from io.BufferedWriter leaks https://bugs.python.org/issue35291 opened by jmadden #35292: Make SimpleHTTPRequestHandler load mimetypes lazily https://bugs.python.org/issue35292 opened by steve.dower #35293: make doctest (Sphinx) emits a lot of warnings https://bugs.python.org/issue35293 opened by vstinner #35294: Race condition involving SocketServer.TCPServer https://bugs.python.org/issue35294 opened by Ruslan Dautkhanov #35295: Please clarify whether PyUnicode_AsUTF8AndSize() or PyUnicode_ https://bugs.python.org/issue35295 opened by Marcin Kowalczyk #35297: untokenize documentation is not correct https://bugs.python.org/issue35297 opened by csernazs #35298: Segfault in _PyObject_GenericGetAttrWithDict https://bugs.python.org/issue35298 opened by gilado #35299: LGHT0091: Duplicate symbol 'File:include_pyconfig.h' found https://bugs.python.org/issue35299 opened by neyuru #35300: Bug with memoization and mutable objects https://bugs.python.org/issue35300 opened by bolorsociedad #35301: python.exe crashes - lzma? https://bugs.python.org/issue35301 opened by jonathan-lp Most recent 15 issues with no replies (15) ========================================== #35301: python.exe crashes - lzma? https://bugs.python.org/issue35301 #35299: LGHT0091: Duplicate symbol 'File:include_pyconfig.h' found https://bugs.python.org/issue35299 #35298: Segfault in _PyObject_GenericGetAttrWithDict https://bugs.python.org/issue35298 #35297: untokenize documentation is not correct https://bugs.python.org/issue35297 #35295: Please clarify whether PyUnicode_AsUTF8AndSize() or PyUnicode_ https://bugs.python.org/issue35295 #35294: Race condition involving SocketServer.TCPServer https://bugs.python.org/issue35294 #35291: duplicate of memoryview from io.BufferedWriter leaks https://bugs.python.org/issue35291 #35285: Make Proactor api extensible for reasonably any file handle https://bugs.python.org/issue35285 #35284: Incomplete error handling in Python/compile.c:compiler_call() https://bugs.python.org/issue35284 #35282: Add a return value to lib2to3.refactor.refactor_file and refac https://bugs.python.org/issue35282 #35280: Interactive shell overwrites history https://bugs.python.org/issue35280 #35279: asyncio uses too many threads by default https://bugs.python.org/issue35279 #35270: Cmd.complete does not handle cmd=None https://bugs.python.org/issue35270 #35264: SSL Module build fails with OpenSSL 1.1.0 for Python 2.7 https://bugs.python.org/issue35264 #35263: Add None handling for get_saved() in IDLE https://bugs.python.org/issue35263 Most recent 15 issues waiting for review (15) ============================================= #35284: Incomplete error handling in Python/compile.c:compiler_call() https://bugs.python.org/issue35284 #35283: "threading._DummyThread" redefines "is_alive" but forgets "isA https://bugs.python.org/issue35283 #35282: Add a return value to lib2to3.refactor.refactor_file and refac https://bugs.python.org/issue35282 #35278: [security] directory traversal in tempfile prefix https://bugs.python.org/issue35278 #35277: Upgrade bundled pip/setuptools https://bugs.python.org/issue35277 #35270: Cmd.complete does not handle cmd=None https://bugs.python.org/issue35270 #35266: Add _PyPreConfig and rework _PyCoreConfig and _PyMainInterpret https://bugs.python.org/issue35266 #35264: SSL Module build fails with OpenSSL 1.1.0 for Python 2.7 https://bugs.python.org/issue35264 #35263: Add None handling for get_saved() in IDLE https://bugs.python.org/issue35263 #35259: Py_FinalizeEx unconditionally exists in Py_LIMITED_API https://bugs.python.org/issue35259 #35255: delete "How do I extract the downloaded documentation" section https://bugs.python.org/issue35255 #35252: test_functools dead code after FIXME https://bugs.python.org/issue35252 #35250: Minor parameter documentation mismatch for turtle https://bugs.python.org/issue35250 #35236: urllib.request.urlopen throws on some valid FTP files https://bugs.python.org/issue35236 #35226: mock.call equality surprisingly broken https://bugs.python.org/issue35226 Top 10 most discussed issues (10) ================================= #35134: Add a new Include/cpython/ subdirectory for the "CPython API" https://bugs.python.org/issue35134 14 msgs #35283: "threading._DummyThread" redefines "is_alive" but forgets "isA https://bugs.python.org/issue35283 13 msgs #34995: functools.cached_property does not maintain the wrapped method https://bugs.python.org/issue34995 9 msgs #35276: Document thread safety https://bugs.python.org/issue35276 5 msgs #22121: IDLE should start with HOME as the initial working directory https://bugs.python.org/issue22121 4 msgs #35021: Assertion failures in datetimemodule.c. https://bugs.python.org/issue35021 4 msgs #35266: Add _PyPreConfig and rework _PyCoreConfig and _PyMainInterpret https://bugs.python.org/issue35266 4 msgs #24658: open().write() fails on 2 GB+ data (OS X) https://bugs.python.org/issue24658 3 msgs #24746: doctest 'fancy diff' formats incorrectly strip trailing whites https://bugs.python.org/issue24746 3 msgs #33416: Add endline and endcolumn to every AST node https://bugs.python.org/issue33416 3 msgs Issues closed (33) ================== #9842: Document ... used in recursive repr of containers https://bugs.python.org/issue9842 closed by serhiy.storchaka #15245: ast.literal_eval fails on some literals https://bugs.python.org/issue15245 closed by serhiy.storchaka #18407: Fix compiler warnings in pythoncore for Win64 https://bugs.python.org/issue18407 closed by vstinner #18859: README.valgrind should mention --with-valgrind https://bugs.python.org/issue18859 closed by lukasz.langa #25438: document what codec PyMemberDef T_STRING decodes the char * as https://bugs.python.org/issue25438 closed by gregory.p.smith #28401: Don't support the PEP384 stable ABI in pydebug builds https://bugs.python.org/issue28401 closed by brett.cannon #28604: Exception raised by python3.5 when using en_GB locale https://bugs.python.org/issue28604 closed by vstinner #31115: Py3.6 threading/reference counting issues with `numexpr` https://bugs.python.org/issue31115 closed by serhiy.storchaka #31146: Docs: On non-public translations, language picker fallback to https://bugs.python.org/issue31146 closed by mdk #32281: bdist_rpm fails if no rpm command and rpmbuild is not in /usr/ https://bugs.python.org/issue32281 closed by ned.deily #32892: Remove specific constant AST types in favor of ast.Constant https://bugs.python.org/issue32892 closed by serhiy.storchaka #33211: lineno and col_offset are wrong on function definitions with d https://bugs.python.org/issue33211 closed by levkivskyi #33325: Optimize sequences of constants in the compiler https://bugs.python.org/issue33325 closed by serhiy.storchaka #34532: Windows launcher exits with error after listing available vers https://bugs.python.org/issue34532 closed by steve.dower #35035: Documentation for email.utils is named email.util.rst https://bugs.python.org/issue35035 closed by mdk #35059: Convert Py_INCREF() and PyObject_INIT() to inlined functions https://bugs.python.org/issue35059 closed by vstinner #35081: Move internal headers to Include/internal/ https://bugs.python.org/issue35081 closed by vstinner #35169: Improve error messages for assignment https://bugs.python.org/issue35169 closed by serhiy.storchaka #35200: Make the half-open range behaviour easier to teach https://bugs.python.org/issue35200 closed by mdk #35202: Remove unused imports in standard library https://bugs.python.org/issue35202 closed by terry.reedy #35206: [WIP] Add a new experimental _Py_CAPI2 API https://bugs.python.org/issue35206 closed by vstinner #35220: delete "how do I emulate os.kill" section in Windows FAQ https://bugs.python.org/issue35220 closed by deronnax #35221: Enhance venv activate commands readability https://bugs.python.org/issue35221 closed by rhettinger #35265: Internal C API: pass the memory allocator in a context https://bugs.python.org/issue35265 closed by vstinner #35269: A possible segfault involving a newly-created coroutine https://bugs.python.org/issue35269 closed by asvetlov #35273: 'eval' in generator expression behave different in dict from l https://bugs.python.org/issue35273 closed by rhettinger #35274: Running print("\x98") then freeze in Interpreter https://bugs.python.org/issue35274 closed by vstinner #35275: Reading umask (thread-safe) https://bugs.python.org/issue35275 closed by serhiy.storchaka #35287: wrong result for difflib.SequenceMatcher https://bugs.python.org/issue35287 closed by Boris Yang #35288: wrong result for difflib.SequenceMatcher https://bugs.python.org/issue35288 closed by Boris Yang #35289: wrong result for difflib.SequenceMatcher https://bugs.python.org/issue35289 closed by Boris Yang #35290: [FreeBSD] test_c_locale_coercion doesn't support new C.UTF-8 l https://bugs.python.org/issue35290 closed by vstinner #35296: Install Include/internal/ header files https://bugs.python.org/issue35296 closed by vstinner

2 years, 4 months

General concerns about C API changes

by Raymond Hettinger

Overall, I support the efforts to improve the C API, but over the last few weeks have become worried. I don't want to hold up progress with fear, uncertainty, and doubt. Yet, I would like to be more comfortable that we're all aware of what is occurring and what are the potential benefits and risks. * Inline functions are great. They provide true local variables, better separation of concerns, are far less kludgy than text based macro substitution, and will typically generate the same code as the equivalent macro. This is good tech when used with in a single source file where it has predictable results. However, I'm not at all confident about moving these into header files which are included in multiple target .c files which need be compiled into separate .o files and linked to other existing libraries. With a macro, I know for sure that the substitution is taking place. This happens at all levels of optimization and in a debug mode. The effects are 100% predictable and have a well-established track record in our mature battle-tested code base. With cross module function calls, I'm less confident about what is happening, partly because compilers are free to ignore inline directives and partly because the semantics of inlining are less clear when the crossing module boundaries. * Other categories of changes that we make tend to have only a shallow reach. However, these C API changes will likely touch every C extension that has ever been written, some of which is highly tuned but not actively re-examined. If any mistakes are make, they will likely be pervasive. Accordingly, caution is warranted. My expectation was that the changes would be conducted in experimental branches. But extensive changes are already being made (or about to be made) on the 3.8 master. If a year from now, we decide that the changes were destabilizing or that the promised benefits didn't materialize, they will be difficult to undo because there are so many of them and because they will be interleaved with other changes. The original motivation was to achieve a 2x speedup in return for significantly churning the C API. However, the current rearranging of the include files and macro-to-inline-function changes only give us churn. At the very best, they will be performance neutral. At worst, formerly cheap macro calls will become expensive in places that we haven't thought to run timings on. Given that compilers don't have to honor an inline directive, we can't really know for sure -- perhaps today it works out fine, and perhaps tomorrow the compilers opt for a different behavior. Maybe everything that is going on is fine. Maybe it's not. I am not expert enough to know for sure, but we should be careful before green-lighting such an extensive series of changes directly to master. Reasonable questions to ask are: 1) What are the risks to third party modules, 2) Do we really know that the macro-to-inline-function transformations are semantically neutral. 3) If there is no performance benefit (none has been seen so far, nor is any promised in the pending PRs), is it worth it? We do know that PyPy folks have had their share of issues with the C API, but I'm not sure that we can make any of this go away without changing the foundations of the whole ecosystem. It is inconvenient for a full GC environment to interact with the API for a reference counted environment -- I don't think we can make this challenge go away without giving up reference counting. It is inconvenient for a system that manifests objects on demand to interact with an API that assumes that objects have identity and never more once they are created -- I don't think we can make this go away either. It is inconvenient to a system that uses unboxed data to interact with our API where everything is an object that includes a type pointer and reference count -- We have provided an API for boxing and boxing, but the trip back-and-forth is inconveniently expensive -- I don't think we can make that go away either because too much of the ecosystem depends on that API. There are some things that can be mitigated such as challenges with borrowed references but that doesn't seem to have been the focus on any of the PRs. In short, I'm somewhat concerned about the extensive changes that are occurring. I do know they will touch substantially every C module in the entire ecosystem. I don't know whether they are safe or whether they will give any real benefit. FWIW, none of this is a criticism of the work being done. Someone needs to think deeply about the C API or else progress will never be made. That said, it is a high risk project with many PRs going directly into master, so it does warrant having buy in that the churn isn't destabilizing and will actually produce a benefit that is worth it. Raymond

2 years, 4 months

Experiment an opt-in new C API for Python? (leave current API unchanged)

by Stefan Krah

Victor Stinner wrote: > Moreover, I failed to find anyone who can explain me how the C API is used > in the wild, which functions are important or not, what is the C API, etc. In practice people desperately *have* to use whatever is there, including functions with underscores that are not even officially in the C-API. I have to use _PyFloat_Pack* in order to be compatible with CPython, I need PySlice_Unpack() etc., I need PyUnicode_KIND(), need PyUnicode_AsUTF8AndSize(), I *wish* there were PyUnicode_AsAsciiAndSize(). In general, in daily use of the C-API I wish it were *larger* and not smaller. I often want functions that return C instead of Python values ot functions that take C instead of Python values. The ideal situation for me would be a lower layer library, say libcpython.a that has all those functions like _PyFloat_Pack*. It would be an enormous amount of work though, especially since the status quo kind of works. Stefan Krah

2 years, 4 months

bpo-34532 status

by Brendan Gerrity

Just wanted to check on bpo-34532/pr#9039. The requested changes were submitted as a commit to the PR. Best, Brendan

2 years, 5 months

Experiment an opt-in new C API for Python? (leave current API unchanged)

by Victor Stinner

Hi, The current C API of Python is both a strength and a weakness of the Python ecosystem as a whole. It's a strength because it allows to quickly reuse a huge number of existing libraries by writing a glue for them. It made numpy possible and this project is a big sucess! It's a weakness because of its cost on the maintenance, it prevents optimizations, and more generally it prevents to experiment modifying Python internals. For example, CPython cannot use tagged pointers, because the existing C API is heavily based on the ability to dereference a PyObject* object and access directly members of objects (like PyTupleObject). For example, Py_INCREF() modifies *directly* PyObject.ob_refcnt. It's not possible neither to use a Python compiled in debug mode on C extensions (compiled in release mode), because the ABI is different in debug mode. As a consequence, nobody uses the debug mode, whereas it is very helpful to develop C extensions and investigate bugs. I also consider that the C API gives too much work to PyPy (for their "cpyext" module). A better C API (not leaking implementation) details would make PyPy more efficient (and simplify its implementation in the long term, when the support for the old C API can be removed). For example, PyList_GetItem(list, 0) currently converts all items of the list to PyObject* in PyPy, it can waste memory if only the first item of the list is needed. PyPy has much more efficient storage than an array of PyObject* for lists. I wrote a website to explain all these issues with much more details: https://pythoncapi.readthedocs.io/ I identified "bad APIs" like using borrowed references or giving access to PyObject** (ex: PySequence_Fast_ITEMS). I already wrote an (incomplete) implementation of a new C API which doesn't leak implementation details: https://github.com/pythoncapi/pythoncapi It uses an opt-in option (Py_NEWCAPI define -- I'm not sure about the name) to get the new API. The current C API is unchanged. Ah, important points. I don't want to touch the current C API nor make it less efficient. And compatibility in both directions (current C API <=> new C API) is very important for me. There is no such plan as "Python 4" which would break the world and *force* everybody to upgrade to the new C API, or stay to Python 3 forever. No. The new C API must be an opt-in option, and current C API remains the default and not be changed. I have different ideas for the compatibility part, but I'm not sure of what are the best options yet. My short term for the new C API would be to ease the experimentation of projects like tagged pointers. Currently, I have to maintain the implementation of a new C API which is not really convenient. -- Today I tried to abuse the Py_DEBUG define for the new C API, but it seems to be a bad idea: https://github.com/python/cpython/pull/10435 A *new* define is needed to opt-in for the new C API. Victor

2 years, 5 months

Need discussion for a PR about memory and objects

by Stephane Wirtel

In this PR [https://github.com/python/cpython/pull/3382] "Remove reference to address from the docs, as it only causes confusion", opened by Chris Angelico, there is a discussion about the right term to use for the address of an object in memory. If you are interested by the topic, you could comment it. If there is no comments then I think we could close the PR. Thank you Stéphane -- Stéphane Wirtel - https://wirtel.be - @matrixise

2 years, 5 months

Get a running instance of the doc for a PR.

by Stephane Wirtel

Hi all, When we receive a PR about the documentation, I think that could be interesting if we could have a running instance of the doc on a sub domain of python.org. For example, pr-10000-doc.python.org or whatever, but by this way the reviewers could see the result online. The workflow would be like that: New PR -> build the doc (done by Travis) -> publish it to a server -> once published, the PR is notified by "doc is available at URL". Once merged -> we remove the doc and the link (hello bedevere). I am interested by this feature and if you also interested, tell me. I would like discuss with Julien Palard and Ernest W. Durbin III for a solution as soon as possible. Have a nice day, Stéphane -- Stéphane Wirtel - https://wirtel.be - @matrixise

2 years, 5 months

Summary of Python tracker Issues

by Python tracker

ACTIVITY SUMMARY (2018-11-09 - 2018-11-16) Python tracker at https://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 6863 (+29) closed 40154 (+36) total 47017 (+65) Open issues with patches: 2741 Issues opened (46) ================== #31354: Fixing a bug related to LTO only build https://bugs.python.org/issue31354 reopened by ned.deily #33826: enable discovery of class source code in IPython interactively https://bugs.python.org/issue33826 reopened by xtreak #35177: Add missing dependencies between AST/parser header files https://bugs.python.org/issue35177 reopened by vstinner #35202: Remove unused imports in standard library https://bugs.python.org/issue35202 opened by thatiparthy #35203: Windows Installer Ignores Launcher Installer Options Where The https://bugs.python.org/issue35203 opened by gr-dexterl #35206: [WIP] Add a new experimental _Py_CAPI2 API https://bugs.python.org/issue35206 opened by vstinner #35208: IDLE: Squeezed lines count ignores window width https://bugs.python.org/issue35208 opened by taleinat #35210: Use bytes + memoryview + resize instead of bytesarray + array https://bugs.python.org/issue35210 opened by tzickel #35212: Expressions with format specifiers in f-strings give wrong cod https://bugs.python.org/issue35212 opened by arminius #35213: IDLE: use 'macOS' where appropriate. https://bugs.python.org/issue35213 opened by terry.reedy #35214: Get the test suite passing with clang Memory Sanitizer enabled https://bugs.python.org/issue35214 opened by gregory.p.smith #35216: misleading error message from shutil.copy() https://bugs.python.org/issue35216 opened by cedricvanrompay #35217: REPL history is broken when python is invoked with cmd /c https://bugs.python.org/issue35217 opened by 零欸特 #35218: decompressing and then re-compressing zipfiles with Python 3 z https://bugs.python.org/issue35218 opened by keeely #35220: delete "how do I emulate os.kill" section in Windows FAQ https://bugs.python.org/issue35220 opened by deronnax #35221: Enhance venv activate commands readability https://bugs.python.org/issue35221 opened by mdk #35224: PEP 572: Assignment Expressions https://bugs.python.org/issue35224 opened by emilyemorehouse #35225: test_faulthandler fails under ubsan https://bugs.python.org/issue35225 opened by benjamin.peterson #35226: mock.call equality surprisingly broken https://bugs.python.org/issue35226 opened by cjw296 #35227: [RFE] tarfile: support adding file objects without prior known https://bugs.python.org/issue35227 opened by mgorny #35228: Index search in CHM help crashes viewer https://bugs.python.org/issue35228 opened by chrullrich #35231: make install may not call ldconfig on GNU/Linux when using --e https://bugs.python.org/issue35231 opened by pmpp #35232: Add `module`/`qualname` arguments to make_dataclass for pickla https://bugs.python.org/issue35232 opened by Antony.Lee #35234: ssl module falls over with internationalized domain names https://bugs.python.org/issue35234 opened by mcasadevall #35235: Access violation on alloc in Windows x86-64 python, pymalloc_a https://bugs.python.org/issue35235 opened by markind #35236: urllib.request.urlopen throws on some valid FTP files https://bugs.python.org/issue35236 opened by Ian Liu Rodrigues #35238: Alleviate memory reservation of fork_exec in subprocess.Popen https://bugs.python.org/issue35238 opened by oesteban #35240: Travis CI: xvfb-run: error: Xvfb failed to start https://bugs.python.org/issue35240 opened by vstinner #35242: multiprocessing.Queue in an inconsistent state and a traceback https://bugs.python.org/issue35242 opened by szobov #35243: readline timeout too long for async gfx use https://bugs.python.org/issue35243 opened by pmpp #35244: Allow to setup Clang as default compiler for modules build https://bugs.python.org/issue35244 opened by Jaime Torres #35246: asyncio.create_subprocess_exec doesn't accept pathlib.Path lik https://bugs.python.org/issue35246 opened by lilydjwg #35247: test.test_socket.RDSTest.testPeek hangs indefinitely https://bugs.python.org/issue35247 opened by markmcclain #35248: RawArray causes FileNotFoundError at cleanup https://bugs.python.org/issue35248 opened by Mathieu Lamarre #35250: Minor parameter documentation mismatch for turtle https://bugs.python.org/issue35250 opened by Shane Smith #35251: FTPHandler.ftp_open documentation error https://bugs.python.org/issue35251 opened by lys.nikolaou #35252: test_functools dead code after FIXME https://bugs.python.org/issue35252 opened by lys.nikolaou #35253: Linker warning LNK4281 https://bugs.python.org/issue35253 opened by neyuru #35255: delete "How do I extract the downloaded documentation" section https://bugs.python.org/issue35255 opened by deronnax #35257: Add LDFLAGS_NODIST for the LDFLAGS not intended for propagatio https://bugs.python.org/issue35257 opened by cstratak #35258: Consider enabling -Wmissing-prototypes https://bugs.python.org/issue35258 opened by izbyshev #35259: Py_FinalizeEx unconditionally exists in Py_LIMITED_API https://bugs.python.org/issue35259 opened by AJNeufeld #35263: Add None handling for get_saved() in IDLE https://bugs.python.org/issue35263 opened by rhettinger #35264: SSL Module build fails with OpenSSL 1.1.0 for Python 2.7 https://bugs.python.org/issue35264 opened by Alexandru Ardelean #35265: Internal C API: pass the memory allocator in a context https://bugs.python.org/issue35265 opened by vstinner #35266: Add _PyPreConfig and rework _PyCoreConfig and _PyMainInterpret https://bugs.python.org/issue35266 opened by vstinner Most recent 15 issues with no replies (15) ========================================== #35266: Add _PyPreConfig and rework _PyCoreConfig and _PyMainInterpret https://bugs.python.org/issue35266 #35265: Internal C API: pass the memory allocator in a context https://bugs.python.org/issue35265 #35264: SSL Module build fails with OpenSSL 1.1.0 for Python 2.7 https://bugs.python.org/issue35264 #35263: Add None handling for get_saved() in IDLE https://bugs.python.org/issue35263 #35259: Py_FinalizeEx unconditionally exists in Py_LIMITED_API https://bugs.python.org/issue35259 #35258: Consider enabling -Wmissing-prototypes https://bugs.python.org/issue35258 #35255: delete "How do I extract the downloaded documentation" section https://bugs.python.org/issue35255 #35251: FTPHandler.ftp_open documentation error https://bugs.python.org/issue35251 #35246: asyncio.create_subprocess_exec doesn't accept pathlib.Path lik https://bugs.python.org/issue35246 #35243: readline timeout too long for async gfx use https://bugs.python.org/issue35243 #35238: Alleviate memory reservation of fork_exec in subprocess.Popen https://bugs.python.org/issue35238 #35236: urllib.request.urlopen throws on some valid FTP files https://bugs.python.org/issue35236 #35232: Add `module`/`qualname` arguments to make_dataclass for pickla https://bugs.python.org/issue35232 #35231: make install may not call ldconfig on GNU/Linux when using --e https://bugs.python.org/issue35231 #35228: Index search in CHM help crashes viewer https://bugs.python.org/issue35228 Most recent 15 issues waiting for review (15) ============================================= #35266: Add _PyPreConfig and rework _PyCoreConfig and _PyMainInterpret https://bugs.python.org/issue35266 #35265: Internal C API: pass the memory allocator in a context https://bugs.python.org/issue35265 #35264: SSL Module build fails with OpenSSL 1.1.0 for Python 2.7 https://bugs.python.org/issue35264 #35263: Add None handling for get_saved() in IDLE https://bugs.python.org/issue35263 #35255: delete "How do I extract the downloaded documentation" section https://bugs.python.org/issue35255 #35252: test_functools dead code after FIXME https://bugs.python.org/issue35252 #35250: Minor parameter documentation mismatch for turtle https://bugs.python.org/issue35250 #35236: urllib.request.urlopen throws on some valid FTP files https://bugs.python.org/issue35236 #35226: mock.call equality surprisingly broken https://bugs.python.org/issue35226 #35224: PEP 572: Assignment Expressions https://bugs.python.org/issue35224 #35218: decompressing and then re-compressing zipfiles with Python 3 z https://bugs.python.org/issue35218 #35214: Get the test suite passing with clang Memory Sanitizer enabled https://bugs.python.org/issue35214 #35213: IDLE: use 'macOS' where appropriate. https://bugs.python.org/issue35213 #35210: Use bytes + memoryview + resize instead of bytesarray + array https://bugs.python.org/issue35210 #35208: IDLE: Squeezed lines count ignores window width https://bugs.python.org/issue35208 Top 10 most discussed issues (10) ================================= #34160: ElementTree not preserving attribute order https://bugs.python.org/issue34160 20 msgs #35195: [Windows] Python 3.7 initializes LC_CTYPE locale at startup, c https://bugs.python.org/issue35195 19 msgs #35214: Get the test suite passing with clang Memory Sanitizer enabled https://bugs.python.org/issue35214 16 msgs #35196: IDLE text squeezer is too aggressive and is slow https://bugs.python.org/issue35196 15 msgs #33725: Python crashes on macOS after fork with no exec https://bugs.python.org/issue33725 10 msgs #35202: Remove unused imports in standard library https://bugs.python.org/issue35202 10 msgs #35200: Range repr could be better https://bugs.python.org/issue35200 9 msgs #35213: IDLE: use 'macOS' where appropriate. https://bugs.python.org/issue35213 9 msgs #33196: multiprocessing: serialization must ensure that contexts are c https://bugs.python.org/issue33196 8 msgs #35081: Move internal headers to Include/internal/ https://bugs.python.org/issue35081 8 msgs Issues closed (38) ================== #23220: IDLE: Document how Shell displays user code output https://bugs.python.org/issue23220 closed by terry.reedy #23734: zipimport should not check pyc timestamps against zipped py fi https://bugs.python.org/issue23734 closed by gregory.p.smith #28709: PyStructSequence_NewType is broken; makes GC type without sett https://bugs.python.org/issue28709 closed by petr.viktorin #30064: BaseSelectorEventLoop.sock_{recv,sendall}() don't remove their https://bugs.python.org/issue30064 closed by asvetlov #31541: Mock called_with does not ensure self/cls argument is used https://bugs.python.org/issue31541 closed by pablogsal #32429: Outdated Modules/Setup warning is invisible https://bugs.python.org/issue32429 closed by mdk #32485: Multiprocessing dict sharing between forked processes https://bugs.python.org/issue32485 closed by pitrou #32613: Use PEP 397 py launcher in windows faq https://bugs.python.org/issue32613 closed by mdk #33052: Sporadic segmentation fault in test_datetime.test_check_arg_ty https://bugs.python.org/issue33052 closed by vstinner #33695: Have shutil.copytree(), copy() and copystat() use cached scand https://bugs.python.org/issue33695 closed by giampaolo.rodola #33699: Don't describe try's else clause in a footnote https://bugs.python.org/issue33699 closed by Mariatta #33878: Doc: Assignment statement to tuple or list: case missing. https://bugs.python.org/issue33878 closed by mdk #34864: In Idle, Mac tabs make editor status line disappear. https://bugs.python.org/issue34864 closed by terry.reedy #34949: ntpath.abspath no longer uses normpath https://bugs.python.org/issue34949 closed by eryksun #35193: Off by one error in peephole call to find_op on case RETURN_VA https://bugs.python.org/issue35193 closed by gregory.p.smith #35199: Convert PyTuple_GET_ITEM() macro to a function call with addit https://bugs.python.org/issue35199 closed by vstinner #35204: Disable thread and memory sanitizers for address_in_range() https://bugs.python.org/issue35204 closed by benjamin.peterson #35205: os.path.realpath preserves the trailing backslash on Windows i https://bugs.python.org/issue35205 closed by eryksun #35207: Disallow expressions like (a) = 42 https://bugs.python.org/issue35207 closed by pablogsal #35209: Crash with tkinter text on osx https://bugs.python.org/issue35209 closed by ned.deily #35211: Turtle Shutdown Problem(s) https://bugs.python.org/issue35211 closed by ned.deily #35215: Replacing CPython memory allocation https://bugs.python.org/issue35215 closed by pablogsal #35219: macOS 10.14 Mojave crashes in multiprocessing https://bugs.python.org/issue35219 closed by barry #35222: email.utils.formataddr is not exactly the reverse of email.uti https://bugs.python.org/issue35222 closed by r.david.murray #35223: Pathlib incorrectly merges strings. https://bugs.python.org/issue35223 closed by eryksun #35229: Deprecate _PyObject_GC_TRACK() in Python 3.6 https://bugs.python.org/issue35229 closed by vstinner #35230: Remove _Py_REF_DEBUG_COMMA https://bugs.python.org/issue35230 closed by inada.naoki #35233: _PyMainInterpreterConfig_Copy() doesn't copy install_signal_ha https://bugs.python.org/issue35233 closed by vstinner #35237: Allow Path instances in sys.path ? https://bugs.python.org/issue35237 closed by ammar2 #35239: _PySys_EndInit() doesn't copy main interpreter configuration https://bugs.python.org/issue35239 closed by vstinner #35241: [3.7] test_embed fails on MacOS buildbots https://bugs.python.org/issue35241 closed by vstinner #35245: list comprehension for flattened or nested list differ too muc https://bugs.python.org/issue35245 closed by steven.daprano #35249: Docs Makefile always rebuilds entire doc https://bugs.python.org/issue35249 closed by seluj78 #35254: Process finished with exit code -1073741795 (0xC000001D) https://bugs.python.org/issue35254 closed by eryksun #35256: The Console of Python 3.7.0. https://bugs.python.org/issue35256 closed by eric.smith #35260: 2to3 Parse Error on Python 3 print() with arguments https://bugs.python.org/issue35260 closed by mark.dickinson #35261: readline.c: PyOS_InputHook not protected against SIGWINCH https://bugs.python.org/issue35261 closed by vstinner #35262: There should be a list.get just like dict.get https://bugs.python.org/issue35262 closed by rhettinger

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Python-Dev November 2018