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GeezerVison is showing github.com — bpo-42262: Add Py_NewRef() function by vstinner · Pull Request #23152 · python/cpython

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@vstinner

@vstinner vstinner commented Nov 4, 2020 •
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Add Py_NewRef() function to get a strong reference to an object.

https://bugs.python.org/issue42262

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hodgestar, pmp-p, and erlend-aasland reacted with thumbs up emoji Jongy reacted with hooray emoji erlend-aasland reacted with heart emoji
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@the-knights-who-say-ni the-knights-who-say-ni added the CLA signed label Nov 4, 2020
@bedevere-bot bedevere-bot added the awaiting core review label Nov 4, 2020
@vstinner

vstinner commented Nov 4, 2020

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Ubuntu failed with a download error:

E: Failed to fetch http://azure.archive.ubuntu.com/ubuntu/pool/main/b/babeltrace/libbabeltrace1_1.5.5-1_amd64.deb Could not connect to azure.archive.ubuntu.com:80 (52.252.75.106), connection timed out

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@vstinner vstinner closed this Nov 4, 2020
@vstinner vstinner reopened this Nov 4, 2020
@vstinner

vstinner commented Nov 4, 2020

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I closed/reopened the PR to re-run the Ubuntu job.

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@vstinner

vstinner commented Nov 4, 2020

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cc @methane @serhiy-storchaka

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@vstinner
vstinner requested a review from a team as a code owner November 4, 2020 20:02
methane
methane reviewed Nov 4, 2020
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Would you improve the doc to describe the difference to Py_INCREF?

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@vstinner

vstinner commented Nov 4, 2020

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@methane:

Would you improve the doc to describe the difference to Py_INCREF?

I rewrote the function documentation. Is the difference between Py_INCREF() and Py_NewRef() more explicit now?

I also added Py_XNewRef() which accepts NULL.

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vstinner added 2 commits November 5, 2020 00:41
@vstinner
bpo-42262: Add Py_NewRef() function
eb35158
Added Py_NewRef() function to increment the reference count of an
object and return the object.
@vstinner
Fix Sphinx formatting
c1942ff
Jongy
Jongy reviewed Nov 5, 2020
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Comment thread Objects/object.c Outdated
}

#undef Py_NewRef
#undef Py_XNewRef

@Jongy Jongy Nov 5, 2020

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Perhaps redefine these 2 macros after defining the 2 functions, so this file can enjoy the static inline version as well?

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@vstinner vstinner Nov 5, 2020

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Good idea. I moved the definitions at the bottom of object.c, so object.c gets the fast static inlined flavor as well.

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@Jongy Jongy Nov 5, 2020

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I moved the definitions at the bottom of object.c,

Even better :)

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@methane

methane commented Nov 5, 2020

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I rewrote the function documentation. Is the difference between Py_INCREF() and Py_NewRef() more explicit now?

LGTM.

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methane
methane approved these changes Nov 5, 2020
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@bedevere-bot bedevere-bot added awaiting merge and removed awaiting core review labels Nov 5, 2020
@vstinner
Define functions at the bottom of object.c
146d28d
@vstinner
vstinner merged commit 53a03aa into python:master Nov 5, 2020
@bedevere-bot bedevere-bot removed the awaiting merge label Nov 5, 2020
@vstinner
vstinner deleted the newref branch November 5, 2020 14:02
@vstinner

vstinner commented Nov 5, 2020

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Thanks for the review @methane and @Jongy !

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@erlend-aasland erlend-aasland mentioned this pull request Nov 5, 2020
bpo-1635741: sqlite3 now uses Py_NewRef and Py_XNewRef #23170
Merged
shihai1991 added a commit to shihai1991/cpython that referenced this pull request Nov 6, 2020
@shihai1991
Merge remote-tracking branch 'origin/master' into bpo_41832
15e18cc
* origin/master:
  bpo-42179: Doc/tutorial: Remove mention of __cause__ (pythonGH-23162)
  bpo-26389: Allow passing an exception object in the traceback module (pythonGH-22610)
  bpo-42260: PyConfig_Read() only parses argv once (pythonGH-23168)
  bpo-42260: Add _PyConfig_FromDict() (pythonGH-23167)
  bpo-41877 Check for asert, aseert, assrt in mocks (pythonGH-23165)
  [docs] fix wrongly named AsyncContextDecorator (pythonGH-23164)
  bpo-42262: Add Py_NewRef() and Py_XNewRef() (pythonGH-23152)
  bpo-42266: Handle monkey-patching descriptors in LOAD_ATTR cache (pythonGH-23157)
  bpo-40816 Add AsyncContextDecorator class (pythonGH-20516)
shihai1991 added a commit to shihai1991/cpython that referenced this pull request Nov 7, 2020
@shihai1991
Merge remote-tracking branch 'origin/master' into bpo_41073_add_types…
2d72953
…lots1

* origin/master: (80 commits)
  bpo-42282: Fold constants inside named expressions (pythonGH-23190)
  bpo-41028: Doc: Move switchers to docsbuild-scripts. (pythonGH-20969)
  bpo-42133: update parts of the stdlib to fall back to `__spec__.loader` when `__loader__` is missing (python#22929)
  Remove outdated reference to pywin32 from platform module (pythonGH-22005)
  bpo-41832: PyType_FromModuleAndSpec() now accepts NULL tp_doc (pythonGH-23123)
  Minor grammar edits for the descriptor howto guide (GH-python#23175)
  bpo-42179: Doc/tutorial: Remove mention of __cause__ (pythonGH-23162)
  bpo-26389: Allow passing an exception object in the traceback module (pythonGH-22610)
  bpo-42260: PyConfig_Read() only parses argv once (pythonGH-23168)
  bpo-42260: Add _PyConfig_FromDict() (pythonGH-23167)
  bpo-41877 Check for asert, aseert, assrt in mocks (pythonGH-23165)
  [docs] fix wrongly named AsyncContextDecorator (pythonGH-23164)
  bpo-42262: Add Py_NewRef() and Py_XNewRef() (pythonGH-23152)
  bpo-42266: Handle monkey-patching descriptors in LOAD_ATTR cache (pythonGH-23157)
  bpo-40816 Add AsyncContextDecorator class (pythonGH-20516)
  bpo-42260: Add _PyInterpreterState_SetConfig() (pythonGH-23158)
  Disable peg generator tests when building with PGO (pythonGH-23141)
  bpo-1635741: _sqlite3 uses PyModule_AddObjectRef() (pythonGH-23148)
  bpo-1635741: Fix PyInit_pyexpat() error handling (pythonGH-22489)
  bpo-42260: Main init modify sys.flags in-place (pythonGH-23150)
  ...
adorilson pushed a commit to adorilson/cpython that referenced this pull request Mar 13, 2021
@vstinner @adorilson
bpo-42262: Add Py_NewRef() and Py_XNewRef() (pythonGH-23152)
f84560f
Added Py_NewRef() and Py_XNewRef() functions to increment the reference
count of an object and return the object.
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@methane methane methane approved these changes
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@Jongy Jongy Jongy left review comments
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5 participants

@vstinner @methane @Jongy @the-knights-who-say-ni @bedevere-bot
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