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* bpo-34204: Use pickle.DEFAULT_PROTOCOL in shelve (GH-19639)Zackery Spytz2020-10-295-8/+29
| | | | Use pickle.DEFAULT_PROTOCOL (currently 5) in shelve instead of a hardcoded 3.
* bpo-41805: Documentation for PEP 585 (GH-22615)kj2020-10-274-0/+211
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* bpo-42161: Micro-optimize _collections._count_elements() (GH-23008)Victor Stinner2020-10-271-4/+5
| | | Move the _PyLong_GetOne() call outside the fast-path loop.
* bpo-42161: Remove private _PyLong_Zero and _PyLong_One (GH-23003)Victor Stinner2020-10-273-23/+0
| | | | | Use PyLong_FromLong(0) and PyLong_FromLong(1) of the public C API instead. For Python internals, _PyLong_GetZero() and _PyLong_GetOne() of pycore_long.h can be used.
* bpo-42099: Fix reference to ob_type in unionobject.c and ceval (GH-22829)Neil Schemenauer2020-10-272-2/+2
| | | * Use Py_TYPE() rather than o->ob_type.
* bpo-41659: Disallow curly brace directly after primary (GH-22996)Lysandros Nikolaou2020-10-275-167/+244
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* bpo-6761: Enhance __call__ documentation (GH-7987)Andre Delfino2020-10-271-1/+1
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* bpo-42161: Modules/ uses _PyLong_GetZero() and _PyLong_GetOne() (GH-22998)Victor Stinner2020-10-2714-36/+57
| | | | | | Use _PyLong_GetZero() and _PyLong_GetOne() in Modules/ directory. _cursesmodule.c and zoneinfo.c are now built with Py_BUILD_CORE_MODULE macro defined.
* bpo-41474, Makefile: Add dependency on cpython/frameobject.h (GH-22999)Victor Stinner2020-10-271-0/+1
| | | Co-Authored-By: Skip Montanaro <skip.montanaro@gmail.com>
* bpo-42157: Rename unicodedata.ucnhash_CAPI (GH-22994)Victor Stinner2020-10-275-5/+13
| | | | | | | Removed the unicodedata.ucnhash_CAPI attribute which was an internal PyCapsule object. The related private _PyUnicode_Name_CAPI structure was moved to the internal C API. Rename unicodedata.ucnhash_CAPI as unicodedata._ucnhash_CAPI.
* bpo-42161: Use _PyLong_GetZero() and _PyLong_GetOne() (GH-22995)Victor Stinner2020-10-279-40/+68
| | | | Use _PyLong_GetZero() and _PyLong_GetOne() in Objects/ and Python/ directories.
* bpo-30681: Support invalid date format or value in email Date header (GH-22090)Georges Toth2020-10-2710-5/+59
| | | | | | | | | | | | | | | | | | | | I am re-submitting an older PR which was abandoned but is still relevant, #10783 by @timb07. The issue being solved () is still relevant. The original PR #10783 was closed as the final request changes were not applied and since abandoned. In this new PR I have re-used the original patch plus applied both comments from the review, by @maxking and @pganssle. For reference, here is the original PR description: In email.utils.parsedate_to_datetime(), a failure to parse the date, or invalid date components (such as hour outside 0..23) raises an exception. Document this behaviour, and add tests to test_email/test_utils.py to confirm this behaviour. In email.headerregistry.DateHeader.parse(), check when parsedate_to_datetime() raises an exception and add a new defect InvalidDateDefect; preserve the invalid value as the string value of the header, but set the datetime attribute to None. Add tests to test_email/test_headerregistry.py to confirm this behaviour; also added test to test_email/test_inversion.py to confirm emails with such defective date headers round trip successfully. This pull request incorporates feedback gratefully received from @bitdancer, @brettcannon, @Mariatta and @warsaw, and replaces the earlier PR #2254. Automerge-Triggered-By: GH:warsaw
* bpo-42161: Add _PyLong_GetZero() and _PyLong_GetOne() (GH-22993)Victor Stinner2020-10-266-25/+67
| | | | | | Add _PyLong_GetZero() and _PyLong_GetOne() functions and a new internal pycore_long.h header file. Python cannot be built without small integer singletons anymore.
* bpo-42123: Run the parser two times and only enable invalid rules on the ↵Lysandros Nikolaou2020-10-266-50/+70
| | | | | | | | | | second run (GH-22111) * Implement running the parser a second time for the errors messages The first parser run is only responsible for detecting whether there is a `SyntaxError` or not. If there isn't the AST gets returned. Otherwise, the parser is run a second time with all the `invalid_*` rules enabled so that all the customized error messages get produced.
* bpo-42157: Convert unicodedata.UCD to heap type (GH-22991)Victor Stinner2020-10-263-84/+56
| | | | | | | Convert the unicodedata extension module to the multiphase initialization API (PEP 489) and convert the unicodedata.UCD static type to a heap type. Co-Authored-By: Mohamed Koubaa <koubaa.m@gmail.com>
* bpo-42157: unicodedata avoids references to UCD_Type (GH-22990)Victor Stinner2020-10-267-136/+126
| | | | | | | | | | * UCD_Check() uses PyModule_Check() * Simplify the internal _PyUnicode_Name_CAPI structure: * Remove size and state members * Remove state and self parameters of getcode() and getname() functions * Remove global_module_state
* bpo-39101: Fixes BaseException hang in IsolatedAsyncioTestCase. (GH-22654)Lisa Roach2020-10-263-2/+30
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* bpo-1635741: _PyUnicode_Name_CAPI moves to internal C API (GH-22713)Victor Stinner2020-10-2611-49/+74
| | | | | | | | | | The private _PyUnicode_Name_CAPI structure of the PyCapsule API unicodedata.ucnhash_CAPI moves to the internal C API. Moreover, the structure gets a new state member which must be passed to the getcode() and getname() functions. * Move Include/ucnhash.h to Include/internal/pycore_ucnhash.h * unicodedata module is now built with Py_BUILD_CORE_MODULE. * unicodedata: move hashAPI variable into unicodedata_module_state.
* bpo-42152: Use PyDict_Contains and PyDict_SetDefault if appropriate. (GH-22986)Serhiy Storchaka2020-10-2611-163/+135
| | | | | | | If PyDict_GetItemWithError is only used to check whether the key is in dict, it is better to use PyDict_Contains instead. And if it is used in combination with PyDict_SetItem, PyDict_SetDefault can replace the combination.
* bpo-42006: Stop using PyDict_GetItem, PyDict_GetItemString and ↵Serhiy Storchaka2020-10-2617-137/+254
| | | | | | | | | | | _PyDict_GetItemId. (GH-22648) These functions are considered not safe because they suppress all internal errors and can return wrong result. PyDict_GetItemString and _PyDict_GetItemId can also silence current exception in rare cases. Remove no longer used _PyDict_GetItemId. Add _PyDict_ContainsId and rename _PyDict_Contains into _PyDict_Contains_KnownHash.
* Added some makefile generated files to .gitignore (GH-22435)Marco Sulla2020-10-261-0/+2
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* Add a link to buffer protocol in bytearray() doc (GH-22675)Antoine2020-10-261-2/+2
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* bpo-42146: Fix memory leak in subprocess.Popen() in case of uid/gid overflow ↵Alexey Izbyshev2020-10-263-2/+17
| | | | | | | | | | | (GH-22966) Fix memory leak in subprocess.Popen() in case of uid/gid overflow Also add a test that would catch this leak with `--huntrleaks`. Alas, the test for `extra_groups` also exposes an inconsistency in our error reporting: we use a custom ValueError for `extra_groups`, but propagate OverflowError for `user` and `group`.
* bpo-42150: Avoid buffer overflow in the new parser (GH-22978)Pablo Galindo2020-10-252-1/+4
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* bpo-42043: Add support for zipfile.Path subclasses (#22716)Jason R. Coombs2020-10-253-115/+240
| | | | | * bpo-42043: Add support for zipfile.Path inheritance as introduced in zipp 3.2.0. * Add blurb.
* bpo-41919: Avoid resource leak in test_io (GH-22973)Hai Shi2020-10-251-12/+13
| | | Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
* bpo-41490: ``path`` and ``contents`` to aggressively close handles (#22915)Jason R. Coombs2020-10-257-16/+114
| | | | | | | | | * bpo-41490: ``path`` method to aggressively close handles * Add blurb * In ZipReader.contents, eagerly evaluate the contents to release references to the zipfile. * Instead use _ensure_sequence to ensure any iterable from a reader is eagerly converted to a list if it's not already a sequence.
* 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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