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* bpo-42144: Add a missing "goto error;" in the _ssl module (GH-22959)Zackery Spytz2020-10-251-0/+1
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* bpo-39108: Document threading issues for random.gauss() (GH-22928)Raymond Hettinger2020-10-251-0/+7
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* Split-out a fourth section in the descriptor HowTo guide (GH-22965)Raymond Hettinger2020-10-251-46/+50
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* Correctly compare the hint against the keys in _PyDict_GetItemHint (GH-22960)Pablo Galindo2020-10-251-1/+1
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* Second round of updates to the descriptor howto guide (GH-22946)Raymond Hettinger2020-10-251-96/+156
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* bpo-33987: Add master ttk Frame to IDLE search dialogs (GH-22942)Mark Roseman2020-10-254-14/+25
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* bpo-42127: Document effect of cached_property on key-sharing dictionaries ↵Raymond Hettinger2020-10-251-9/+24
| | | | (GH-22930)
* bpo-33987: Use master ttk Frame for IDLE config dialog (GH-22943)Mark Roseman2020-10-241-5/+7
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* bpo-33987: Use ttk Label on IDLE statusbar (GH-22941)Mark Roseman2020-10-241-2/+1
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* bpo-35823: Allow setsid() after vfork() on Linux. (GH-22945)Gregory P. Smith2020-10-241-2/+3
| | | | | | | | | | | It should just be a syscall updating a couple of fields in the kernel side process info. Confirming, in glibc is appears to be a shim for the setsid syscall (based on not finding any code implementing anything special for it) and in uclibc (*much* easier to read) it is clearly just a setsid syscall shim. A breadcrumb _suggesting_ that it is not allowed on Darwin/macOS comes from a commit in emacs: https://lists.gnu.org/archive/html/bug-gnu-emacs/2017-04/msg00297.html but I don't have a way to verify if that is true or not. As we are not supporting vfork on macOS today I just left a note in a comment.
* bpo-41052: Fix pickling heap types implemented in C with protocols 0 and 1 ↵Serhiy Storchaka2020-10-249-167/+27
| | | | (GH-22870)
* bpo-35823: subprocess: Fix handling of pthread_sigmask() errors (GH-22944)Alexey Izbyshev2020-10-241-4/+15
| | | | | | | | Using POSIX_CALL() is incorrect since pthread_sigmask() returns the error number instead of setting errno. Also handle failure of the first call to pthread_sigmask() in the parent process, and explain why we don't handle failure of the second call in a comment.
* [doc] Fix link to abc.ABCMeta.register in Glossary (GH-22932)Andre Delfino2020-10-241-1/+1
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* Automatically add skip news and skip issue label to dependabot PRs (GH-22927)Mariatta2020-10-241-0/+3
| | | Closes https://github.com/python/bedevere/issues/287
* bpo-42139: Update What's New 3.9 for master (#22936)Terry Jan Reedy2020-10-241-65/+299
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* bpo-19072: Update descriptor howto for decorator chaining (GH-22934)Raymond Hettinger2020-10-241-3/+13
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* Mention in "What's New" that the import system is starting to be cleaned up ↵Brett Cannon2020-10-241-0/+17
| | | | | (GH-22931) Automerge-Triggered-By: GH:brettcannon
* bpo-35823: subprocess: Use vfork() instead of fork() on Linux when safe ↵Alexey Izbyshev2020-10-245-29/+204
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (GH-11671) * bpo-35823: subprocess: Use vfork() instead of fork() on Linux when safe When used to run a new executable image, fork() is not a good choice for process creation, especially if the parent has a large working set: fork() needs to copy page tables, which is slow, and may fail on systems where overcommit is disabled, despite that the child is not going to touch most of its address space. Currently, subprocess is capable of using posix_spawn() instead, which normally provides much better performance. However, posix_spawn() does not support many of child setup operations exposed by subprocess.Popen(). Most notably, it's not possible to express `close_fds=True`, which happens to be the default, via posix_spawn(). As a result, most users can't benefit from faster process creation, at least not without changing their code. However, Linux provides vfork() system call, which creates a new process without copying the address space of the parent, and which is actually used by C libraries to efficiently implement posix_spawn(). Due to sharing of the address space and even the stack with the parent, extreme care is required to use vfork(). At least the following restrictions must hold: * No signal handlers must execute in the child process. Otherwise, they might clobber memory shared with the parent, potentially confusing it. * Any library function called after vfork() in the child must be async-signal-safe (as for fork()), but it must also not interact with any library state in a way that might break due to address space sharing and/or lack of any preparations performed by libraries on normal fork(). POSIX.1 permits to call only execve() and _exit(), and later revisions remove vfork() specification entirely. In practice, however, almost all operations needed by subprocess.Popen() can be safely implemented on Linux. * Due to sharing of the stack with the parent, the child must be careful not to clobber local variables that are alive across vfork() call. Compilers are normally aware of this and take extra care with vfork() (and setjmp(), which has a similar problem). * In case the parent is privileged, special attention must be paid to vfork() use, because sharing an address space across different privilege domains is insecure[1]. This patch adds support for using vfork() instead of fork() on Linux when it's possible to do safely given the above. In particular: * vfork() is not used if credential switch is requested. The reverse case (simple subprocess.Popen() but another application thread switches credentials concurrently) is not possible for pure-Python apps because subprocess.Popen() and functions like os.setuid() are mutually excluded via GIL. We might also consider to add a way to opt-out of vfork() (and posix_spawn() on platforms where it might be implemented via vfork()) in a future PR. * vfork() is not used if `preexec_fn != None`. With this change, subprocess will still use posix_spawn() if possible, but will fallback to vfork() on Linux in most cases, and, failing that, to fork(). [1] https://ewontfix.com/7 Co-authored-by: Gregory P. Smith [Google LLC] <gps@google.com>
* bpo-38976: Add support for HTTP Only flag in MozillaCookieJar (#17471)Jacob Neil Taylor2020-10-233-14/+35
| | | | | Add support for HTTP Only flag in MozillaCookieJar Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
* build(deps): bump actions/upload-artifact from v1 to v2.2.0 (GH-22920)dependabot[bot]2020-10-231-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from v1 to v2.2.0. <details> <summary>Release notes</summary> <p><em>Sourced from <a href="https://github.com/actions/upload-artifact/releases">actions/upload-artifact's releases</a>.</em></p> <blockquote> <h2>v2.2.0</h2> <ul> <li>Support for artifact retention</li> </ul> </blockquote> </details> <details> <summary>Commits</summary> <ul> <li><a href="https://github.com/actions/upload-artifact/commit/27bce4eee761b5bc643f46a8dfb41b430c8d05f6"><code>27bce4e</code></a> Merge pull request <a href="https://github-redirect.dependabot.com/actions/upload-artifact/issues/112">#112</a> from thboop/main</li> <li><a href="https://github.com/actions/upload-artifact/commit/f8b42f7ab442a66b3d51a5ca02855b194a36ae2d"><code>f8b42f7</code></a> update licensed files</li> <li><a href="https://github.com/actions/upload-artifact/commit/2106e8cf10e032ca9d5724c4c676543febe74f0b"><code>2106e8c</code></a> update contributing.md</li> <li><a href="https://github.com/actions/upload-artifact/commit/db66798ebcfbaa7f3f8ff66bce013213265c30d1"><code>db66798</code></a> Ignore Generated Files in Git PR's</li> <li><a href="https://github.com/actions/upload-artifact/commit/d359fd0772ed6802a84728dd6b09ec99f41a67b7"><code>d359fd0</code></a> Manual Verification of licenses</li> <li><a href="https://github.com/actions/upload-artifact/commit/350822c32f871c559dbe1667c24424e06c4f03e3"><code>350822c</code></a> Add Licensed Workflow and config</li> <li><a href="https://github.com/actions/upload-artifact/commit/abecf4abf4b70bc636949d61150be883b87416c2"><code>abecf4a</code></a> Updated README.md (<a href="https://github-redirect.dependabot.com/actions/upload-artifact/issues/118">#118</a>)</li> <li><a href="https://github.com/actions/upload-artifact/commit/604e071d21906545dedcfaf210deae74f8c5276a"><code>604e071</code></a> Merge pull request <a href="https://github-redirect.dependabot.com/actions/upload-artifact/issues/126">#126</a> from yacaovsnc/main</li> <li><a href="https://github.com/actions/upload-artifact/commit/4560c23b396d494f0cb7066e1d6e258e8feb8051"><code>4560c23</code></a> Check for invalid retention-days input</li> <li><a href="https://github.com/actions/upload-artifact/commit/59018c2f85dd0e101b75544aa87f13bb0c94e0b7"><code>59018c2</code></a> Add an option to specify retention period</li> <li>Additional commits viewable in <a href="https://github.com/actions/upload-artifact/compare/v1...27bce4eee761b5bc643f46a8dfb41b430c8d05f6">compare view</a></li> </ul> </details> <br /> Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting `@dependabot rebase`. [//]: # (dependabot-automerge-start) [//]: # (dependabot-automerge-end) --- <details> <summary>Dependabot commands and options</summary> <br /> You can trigger Dependabot actions by commenting on this PR: - `@dependabot rebase` will rebase this PR - `@dependabot recreate` will recreate this PR, overwriting any edits that have been made to it - `@dependabot merge` will merge this PR after your CI passes on it - `@dependabot squash and merge` will squash and merge this PR after your CI passes on it - `@dependabot cancel merge` will cancel a previously requested merge and block automerging - `@dependabot reopen` will reopen this PR if it is closed - `@dependabot close` will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually - `@dependabot ignore this major version` will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this minor version` will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this dependency` will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself) </details> Automerge-Triggered-By: GH:Mariatta
* build(deps): bump actions/cache from v1 to v2.1.2 (GH-22919)dependabot[bot]2020-10-232-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Bumps [actions/cache](https://github.com/actions/cache) from v1 to v2.1.2. <details> <summary>Release notes</summary> <p><em>Sourced from <a href="https://github.com/actions/cache/releases">actions/cache's releases</a>.</em></p> <blockquote> <h2>v2.1.2</h2> <ul> <li>Adds input to limit the chunk upload size, useful for self-hosted runners with slower upload speeds</li> <li>No-op when executing on GHES</li> </ul> </blockquote> </details> <details> <summary>Commits</summary> <ul> <li><a href="https://github.com/actions/cache/commit/d1255ad9362389eac595a9ae406b8e8cb3331f16"><code>d1255ad</code></a> Merge pull request <a href="https://github-redirect.dependabot.com/actions/cache/issues/424">#424</a> from actions/dhadka/upload-chunk-size</li> <li><a href="https://github.com/actions/cache/commit/68cfb2ccb73b1982be3fa55e3d7c842697d7f1ed"><code>68cfb2c</code></a> Add units to description</li> <li><a href="https://github.com/actions/cache/commit/cce3c03a74623545a53c433d301f3f7725c72454"><code>cce3c03</code></a> Add new input to action.yml</li> <li><a href="https://github.com/actions/cache/commit/4bceb75b5b7743784c63c94b81c50a485cbdcda0"><code>4bceb75</code></a> Use parseInt instead of Number to handle empty strings</li> <li><a href="https://github.com/actions/cache/commit/a6f1f4b32eec85780fedc5b354a583e9b2999100"><code>a6f1f4b</code></a> Adds input for upload chunk size</li> <li><a href="https://github.com/actions/cache/commit/d606e039ae32f64a8593bf4a37b0bf205c695237"><code>d606e03</code></a> Merge pull request <a href="https://github-redirect.dependabot.com/actions/cache/issues/421">#421</a> from actions/dhadka/ghes</li> <li><a href="https://github.com/actions/cache/commit/d3e4f218f30bd71a2c29e2b2a1e4f811f4327162"><code>d3e4f21</code></a> Use warning instead of info</li> <li><a href="https://github.com/actions/cache/commit/55a58944386e69f7c5bad52ef43a61c578b6c1c6"><code>55a5894</code></a> Update dist</li> <li><a href="https://github.com/actions/cache/commit/3f6dfcbcc44a8e2fd9e539c1dd15af6559e74ced"><code>3f6dfcb</code></a> Merge branch 'main' of <a href="http://github.com/actions/cache">http://github.com/actions/cache</a> into dhadka/ghes</li> <li><a href="https://github.com/actions/cache/commit/0f71d4ac9a7f4c36aba5ac3cfc4567d2d4eae813"><code>0f71d4a</code></a> Add tests for isGhes</li> <li>Additional commits viewable in <a href="https://github.com/actions/cache/compare/v1...d1255ad9362389eac595a9ae406b8e8cb3331f16">compare view</a></li> </ul> </details> <br /> Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting `@dependabot rebase`. [//]: # (dependabot-automerge-start) [//]: # (dependabot-automerge-end) --- <details> <summary>Dependabot commands and options</summary> <br /> You can trigger Dependabot actions by commenting on this PR: - `@dependabot rebase` will rebase this PR - `@dependabot recreate` will recreate this PR, overwriting any edits that have been made to it - `@dependabot merge` will merge this PR after your CI passes on it - `@dependabot squash and merge` will squash and merge this PR after your CI passes on it - `@dependabot cancel merge` will cancel a previously requested merge and block automerging - `@dependabot reopen` will reopen this PR if it is closed - `@dependabot close` will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually - `@dependabot ignore this major version` will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this minor version` will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this dependency` will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself) </details> Automerge-Triggered-By: GH:Mariatta
* Allow dependabot to check GitHub actions monthly (GH-22787)John Losito2020-10-231-0/+6
| | | | | | | Let Dependabot update GitHub Actions dependency once a month. Here's reference to the dependabot configs. https://docs.github.com/en/free-pro-team@latest/github/administering-a-repository/keeping-your-actions-up-to-date-with-github-dependabot
* Create a primer section for the descriptor howto guide (GH-22906)Raymond Hettinger2020-10-233-59/+499
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* Add GitHub sponsor info for Python (GH-22887)Mariatta2020-10-231-0/+1
| | | Sponsor Python on GitHub
* Add Mark Shannon to CODEOWNERS. (#22914)Mark Shannon2020-10-231-2/+8
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* bpo-40592: shutil.which will not return None anymore if ; is the last char ↵Christopher Marchfelder2020-10-233-1/+24
| | | | | | in PATHEXT (GH-20088) shutil.which will not return None anymore for empty str in PATHEXT Empty PATHEXT will now be defaulted to _WIN_DEFAULT_PATHEXT
* bpo-36876: Fix the C analyzer tool. (GH-22841)Eric Snow2020-10-2392-10553/+8882
| | | | | | | The original tool wasn't working right and it was simpler to create a new one, partially re-using some of the old code. At this point the tool runs properly on the master. (Try: ./python Tools/c-analyzer/c-analyzer.py analyze.) It take ~40 seconds on my machine to analyze the full CPython code base. Note that we'll need to iron out some OS-specific stuff (e.g. preprocessor). We're okay though since this tool isn't used yet in our workflow. We will also need to verify the analysis results in detail before activating the check in CI, though I'm pretty sure it's close. https://bugs.python.org/issue36876
* bpo-38486: Fix dead qmail links in the mailbox docs (GH-22239)Zackery Spytz2020-10-221-10/+4
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* bpo-33987: IDLE: Use ttk Frame on doc window and statusbar (GH-11433)Cheryl Sabella2020-10-222-5/+9
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* Add CODEOWNERS for the Grammar file (GH-22898)Lysandros Nikolaou2020-10-221-0/+1
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* bpo-38980: Only apply -fno-semantic-interposition if available (GH-22892)Petr Viktorin2020-10-223-0/+92
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* bpo-42086: Document AST operator nodes acts as a singleton (GH-22896)Batuhan Taskaya2020-10-221-0/+7
| | | Automerge-Triggered-By: GH:gvanrossum
* bpo-42057: Add regression test to master. (GH-22893)Mark Shannon2020-10-221-0/+6
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* bpo-25655: Improve Win DLL loading failures doc (GH-22372)Philippe Ombredanne2020-10-221-0/+15
| | | | | | Add documentation to help diagnose CDLL dependent DLL loading errors on windows for OSError with message: "[WinError 126] The specified module could not be found" This error is otherwise difficult to diagnose.
* Remove 3.5 from Doc version switcher in master. (#22886)larryhastings2020-10-222-2/+0
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* bpo-1635741: Fix NULL ptr deref in multiprocessing (GH-22880)Christian Heimes2020-10-221-1/+0
| | | | | | Commit 1d541c25c8019f7a0b80b3e1b437abe171e40b65 introduced a NULL pointer dereference in error path. Signed-off-by: Christian Heimes <christian@python.org>
* _testmultiphase: Fix possible ref leak (GH-22881)Dong-hee Na2020-10-221-0/+4
| | | | | | This is just test code, but sometimes external contributors reference the code snippets from test code. `PyModule_AddObject` should be handled in the proper way. https://docs.python.org/3/c-api/module.html#c.PyModule_AddObject
* Delete TaskWakeupMethWrapper_Type and use PyCFunction instead (#22875)Vladimir Matveev2020-10-221-94/+8
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* bpo-41910: specify the default implementations of object.__eq__ and ↵Brett Cannon2020-10-212-6/+9
| | | | | | | object.__ne__ (GH-22874) See Objects/typeobject.c:object_richcompare() for the implementation of this in CPython. Automerge-Triggered-By: GH:brettcannon
* bpo-38980: Add -fno-semantic-interposition when building with optimizations ↵Pablo Galindo2020-10-214-0/+27
| | | | (GH-22862)
* bpo-35181: Correct importlib documentation for some module attributes (GH-15190)Géry Ogam2020-10-212-21/+11
| | | | | | | | | | | | | | | @ericsnowcurrently This PR will change the following: In the library documentation importlib.rst: - `module.__package__` can be `module.__name__` for packages; - `spec.parent` can be `spec.__name__` for packages; - `spec.loader` is not `None` for namespaces packages. In the language documentation import.rst: - `spec.loader` is not `None` for namespace packages. Automerge-Triggered-By: GH:warsaw
* Fix bpo-39416: Change "Numeric" to lower case; an english word, not a class ↵kpinc2020-10-211-1/+1
| | | | | | | | | | | | | | name (GH-22867) This is a trivial fix to [bpo-39416](), which didn't come up until it was already committed ``` Change "Numeric" to "numeric". I believe this is trivial enough to not need an issue or a NEWS entry, although I'm unclear on what branches the original pull request received backports. ``` Automerge-Triggered-By: GH:merwok
* bpo-41746: Cast to typed seqs in CHECK macros to avoid type erasure (GH-22864)Lysandros Nikolaou2020-10-213-79/+98
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* bpo-41959: Fix grammar around class asyncio.MultiLoopChildWatcher text ↵Raúl Cumplido2020-10-211-1/+1
| | | | | (GH-22580) While translating the following document to Spanish we found there is a grammar issue on the original documentation.
* bpo-39416: Document some restrictions on the default string representations ↵kpinc2020-10-212-0/+19
| | | | | | | | | | | | | | | | of numeric classes (GH-18111) [bpo-39416](): Document string representations of the Numeric classes This is a change to the specification of the Python language. The idea here is to put sane minimal limits on the Python language's default representations of its Numeric classes. That way "Marty's Robotic Massage Parlor and Python Interpreter" implementation of Python won't do anything too crazy. Some discussion in the email thread: Subject: Documenting Python's float.__str__() https://mail.python.org/archives/list/python-dev@python.org/thread/FV22TKT3S2Q3P7PNN6MCXI6IX3HRRNAL/
* bpo-41747: Ensure all dataclass methods uses their parents' qualname (GH-22155)Batuhan Taskaya2020-10-213-2/+36
| | | | | * bpo-41747: Ensure all dataclass methods uses their parents' qualname Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
* Update tzdata to 2020.3 (GH-22856)Paul Ganssle2020-10-211-1/+1
| | | TBH I had forgotten that we pin this 😅, and it's been updated quite a few times since we added this.
* Doc: Fix a typo/error in the docs for cached bytecode (GH-22445)Zackery Spytz2020-10-211-1/+1
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* Doc: Do not suggest `s[::-1]` for reversed order (GH-22457)Andre Delfino2020-10-212-7/+1
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* Doc: Remove old Python version from future stmt (GH-21802)Andre Delfino2020-10-211-2/+2
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