Mark Shannon added the comment:
New changeset 48be46ec1f3f8010570165daa1da4bf9961f3a83 by Mark Shannon in
branch 'main':
bpo-46072: Add some object layout and allocation stats (GH-31051)
https://github.com/python/cpython/commit/48be46ec1f3f8010570165daa1da4b
Change by Mark Shannon :
--
pull_requests: +29242
pull_request: https://github.com/python/cpython/pull/31060
___
Python tracker
<https://bugs.python.org/issue46
Mark Shannon added the comment:
New changeset 187930f74c44e460ba09c60ba5d9bb4fac543d8f by Mark Shannon in
branch 'main':
bpo-46072: Add some frame stats. (GH-31060)
https://github.com/python/cpython/commit/187930f74c44e460ba09c60ba5d9bb
Change by Mark Shannon :
--
pull_requests: +29263
pull_request: https://github.com/python/cpython/pull/31079
___
Python tracker
<https://bugs.python.org/issue46
Mark Shannon added the comment:
New changeset e0433c1e70254d4d0357a9e14596929a04bdf769 by Brandt Bucher in
branch 'main':
bpo-45773: Remove invalid peephole optimizations (GH-31066)
https://github.com/python/cpython/commit/e0433c1e70254d4d0357a9e1459692
Mark Shannon added the comment:
New changeset 674ab66ebdf06f187e193a3d7bde13b71ba0f9af by Dennis Sweeney in
branch 'main':
bpo-45885: Add more stats for COMPARE_OP in specialize.c (GH-31040)
https://github.com/python/cpython/commit/674ab66ebdf06f187e193a3d7bde13
Change by Mark Shannon :
--
pull_requests: +29287
pull_request: https://github.com/python/cpython/pull/31104
___
Python tracker
<https://bugs.python.org/issue46
Change by Mark Shannon :
--
pull_requests: +29288
pull_request: https://github.com/python/cpython/pull/31105
___
Python tracker
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Change by Mark Shannon :
--
pull_requests: +29291
pull_request: https://github.com/python/cpython/pull/31108
___
Python tracker
<https://bugs.python.org/issue46
Mark Dickinson added the comment:
The big blocker here is that a platform that fully supports C99 might not
define the "NAN" macro. I don't think we can require that NAN be defined in
order for Python to build (which is what the PR currently does, if I'm
understanding it
Mark Dickinson added the comment:
I'm not convinced that this deserves to be a math module function. I agree that
`-(-x // y)`, while simple to write, isn't necessarily obvious. But it does
have some advantages, like not needing an import, and being naturally
duck-typed,
Mark Dickinson added the comment:
> If a platform doesn't implement NaN, it should define the Py_NO_NAN macro
Ah. In that case your PR description (and the PR news entry) is misleading:
> Building Python now requires a C99 header file providing the
> NAN constant.
Please co
Mark Dickinson added the comment:
[Tim]
> Because it's a bit obscure, and in real life y is always known to be
> positive, so the nearly obvious (x + y - 1) // y works fine.
Whereas I find (x + y - 1) // y less obvious at first sight than -(-x // y).
:-) I don't care
New submission from Mark Dickinson :
The macro Py_NAN may or may not be defined: in particular, a platform that
doesn't have NaNs is supposed to be able to define Py_NO_NAN in pyport.h to
indicate that.
But not all of our uses of `Py_NAN` are guarded by suitable #ifdef
conditionals.
Mark Dickinson added the comment:
Here's the first point of failure on my machine. Fixing this shows up more
failures.
gcc -c -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall
-std=c99 -Wextra -Wno-unused-parameter -Wno-missing-field-initializers
-Wstrict-proto
Mark Dickinson added the comment:
Thanks, Tim; very interesting. I hadn't seen this factoring algorithm before.
> That wants the _ceiling_ of the square root.
Looks like what it actually wants is the ceiling analog of isqrtrem: that is,
it needs both the ceiling of the square root *
Mark Dickinson added the comment:
Ah,
https://math.mit.edu/research/highschool/primes/materials/2019/Gopalakrishna.pdf
is interesting - they conjecture a bound on the number of iterations required,
and note that under that conjecture the mod can be replaced by a subtraction
Mark Dickinson added the comment:
Okay, the comments I made on #46640 still apply (even though they didn't
properly apply on that issue). I think this needs a python-dev discussion
before it can be moved forward - requiring the existence of NaNs is very close
to requiring IEEE 754 flo
Mark Dickinson added the comment:
> Is the macro PY_NO_SHORT_FLOAT_REPR also related to platforms which don't
> support IEEE 754?
Yes, though it's a bit more than that: we also need the platform either not to
have issues with double rounding for normal numbers, or we ne
Mark Dickinson added the comment:
> See the explanations in the source.
Hmm. Those explanations made more sense before PR GH-28882. :-(
--
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Mark Dickinson added the comment:
@vstinner What was the change that caused the buildbots to start failing? Did
the GCC version get updated on those machines between the last runs and this
one, or was the change due to recent PRs in Python?
--
nosy: +mark.dickinson
Mark Shannon added the comment:
Can you reproduce this failure with just Python?
If not, with just cryptography and not tox?
--
___
Python tracker
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Mark Shannon added the comment:
Qiang Zhang, thanks for fixing this.
--
resolution: -> fixed
stage: -> resolved
status: open -> closed
___
Python tracker
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New submission from Mark Shannon :
https://bugs.python.org/issue45340 and
https://github.com/python/cpython/pull/28802 allowed "virtual" object dicts
(see faster-cpython/ideas#72 for full details).
In order for this to work, we need to keep the insertion order on the values.
T
Change by Mark Shannon :
--
keywords: +patch
pull_requests: +29367
stage: -> patch review
pull_request: https://github.com/python/cpython/pull/31191
___
Python tracker
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Mark Shannon added the comment:
New changeset 062460e8fd54e53c9a1a6f175ef49c9d730851b8 by Mark Shannon in
branch 'main':
bpo-46072: Improve LOAD_METHOD stats (GH-31104)
https://github.com/python/cpython/commit/062460e8fd54e53c9a1a6f175ef49c
Change by Mark Shannon :
--
pull_requests: +29368
pull_request: https://github.com/python/cpython/pull/31197
___
Python tracker
<https://bugs.python.org/issue46
Mark Shannon added the comment:
New changeset 4b603f628207b380a8a2f22d7ff5d2dbb0853e2e by Victor Stinner in
branch 'main':
bpo-46670: Remove unused macros in ceval.c (GH-31196)
https://github.com/python/cpython/commit/4b603f628207b380a8a2f22d7ff5d2dbb0853e2e
--
nosy: +Ma
Mark Shannon added the comment:
New changeset 9c979d7afd839abbb080028bdfeb73727e5cf633 by Mark Shannon in
branch 'main':
bpo-46072: Merge dxpairs into py_stats. (GH-31197)
https://github.com/python/cpython/commit/9c979d7afd839abbb080028bdfeb73
Mark Dickinson added the comment:
> Couldn't math.ceildiv(x, y) be implemented as -(-x//y) in a type-agnostic
> fashion?
Ah, good point. Yes, that could work.
We'd have to decide what to do about Decimal if we took this approach, since
the -(-x//y) trick doesn't work
Change by Mark Shannon :
--
pull_requests: +29381
pull_request: https://github.com/python/cpython/pull/31211
___
Python tracker
<https://bugs.python.org/issue46
Mark Shannon added the comment:
New changeset 25db2b361beb865192a3424830ddcb0ae4b17318 by Mark Shannon in
branch 'main':
bpo-46675: Allow object value arrays and split key dictionaries larger than 16
(GH-31191)
https://github.com/python/cpyt
Change by Mark Shannon :
--
pull_requests: +29398
pull_request: https://github.com/python/cpython/pull/31228
___
Python tracker
<https://bugs.python.org/issue46
Mark Shannon added the comment:
New changeset f71a69aa9209cf67cc1060051b147d6afa379bba by Mark Shannon in
branch 'main':
bpo-46072: Output stats as markdown with collapsible sections. (GH-31228)
https://github.com/python/cpython/commit/f71a69aa9209cf67cc1060051b147d
Change by Mark Shannon :
--
title: Improve effeciency of PRECALL/CALL instructions -> Improve efficiency of
PRECALL/CALL instructions
___
Python tracker
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Change by Mark Shannon :
--
keywords: +patch
pull_requests: +29401
stage: -> patch review
pull_request: https://github.com/python/cpython/pull/31231
___
Python tracker
<https://bugs.python.org/issu
Change by Mark Shannon :
--
pull_requests: +29404
pull_request: https://github.com/python/cpython/pull/31234
___
Python tracker
<https://bugs.python.org/issue46
Mark Dickinson added the comment:
This is by design: int looks for characters with the Unicode Decimal (De)
numeric type, corresponding to str.isdecimal(), rather than for the Digit (Di)
or Numeric (Nu) numeric types.
>>> "²".isdecimal()
False
--
no
Change by Mark Dickinson :
--
resolution: -> not a bug
stage: -> resolved
status: open -> closed
___
Python tracker
<https://bugs.python.or
Change by Mark Shannon :
--
pull_requests: +29419
pull_request: https://github.com/python/cpython/pull/31250
___
Python tracker
<https://bugs.python.org/issue46
Change by Mark Shannon :
--
pull_requests: +29420
pull_request: https://github.com/python/cpython/pull/31251
___
Python tracker
<https://bugs.python.org/issue46
Change by Mark Shannon :
--
pull_requests: +29422
pull_request: https://github.com/python/cpython/pull/31254
___
Python tracker
<https://bugs.python.org/issue46
Mark Shannon added the comment:
New changeset 2cea8c29cf975a8ad7d8c3ff19d1e836c2d54707 by Mark Shannon in
branch 'main':
bpo-46532: Reduce number of memory writes to update call_shape.kwnames.
(GH-31231)
https://github.com/python/cpython/commit/2cea8c29cf975a8ad7d8c3ff19d1e8
Change by Mark Shannon :
--
pull_requests: +29425
pull_request: https://github.com/python/cpython/pull/31259
___
Python tracker
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Mark Shannon added the comment:
New changeset d7a5aca982def155a9255893cefcc1493c127c9c by Brandt Bucher in
branch 'main':
bpo-45923: Add `RESUME_QUICK` (GH-31244)
https://github.com/python/cpython/commit/d7a5aca982def155a9255893cefcc1
Change by Mark Dickinson :
--
nosy: +Mark.Shannon
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Mark Dickinson added the comment:
+1
--
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Mark Dickinson added the comment:
Can you explain why you think the result of `a == b` should be `False` rather
than `True`? By default, equality for dataclasses is structural equality, and
`True` is the result that I'd expect here.
>From the
>[docs](https://docs.python.or
Change by Mark Shannon :
--
pull_requests: +29481
pull_request: https://github.com/python/cpython/pull/31324
___
Python tracker
<https://bugs.python.org/issue46
Change by Mark Shannon :
--
pull_requests: +29482
pull_request: https://github.com/python/cpython/pull/31326
___
Python tracker
<https://bugs.python.org/issue46
Mark Shannon added the comment:
New changeset 3be1a443ca8e7d4ba85f95b78df5c4122cae9ede by Mark Shannon in
branch 'main':
bpo-46724: Use `JUMP_ABSOLUTE` for all backward jumps. (GH-31326)
https://github.com/python/cpython/commit/3be1a443ca8e7d4ba85f95b78df5c4
Change by Mark Shannon :
--
pull_requests: +29501
pull_request: https://github.com/python/cpython/pull/31352
___
Python tracker
<https://bugs.python.org/issue46
Change by Mark Shannon :
--
pull_requests: +29503
pull_request: https://github.com/python/cpython/pull/31354
___
Python tracker
<https://bugs.python.org/issue46
New submission from Mark Shannon :
This is getting really annoying.
It takes longer to fix all the heavily coupled and poorly written tests in
test_dis than to make the real changes.
Tiny changes in the calling sequence, or reordering CFGs, cause huge diffs in
the test_dis module.
No one
Change by Mark Shannon :
--
keywords: +patch
pull_requests: +29519
stage: -> patch review
pull_request: https://github.com/python/cpython/pull/31369
___
Python tracker
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Mark Shannon added the comment:
New changeset d4e4ef107a9fea257981d7701f023177b704a44f by Mark Shannon in
branch '3.10':
[3.10] bpo-46724: Use `JUMP_ABSOLUTE` for all backward jumps. (GH-31326)
(GH-31354)
https://github.com/python/cpython/commit/d4e4ef107a9fea257981d7701f0231
Change by Mark Shannon :
--
pull_requests: +29523
pull_request: https://github.com/python/cpython/pull/31373
___
Python tracker
<https://bugs.python.org/issue46
New submission from Mark Lonnemann :
ConfigParser() is not using a custom dictionary class correctly, according to
my understanding. I have duplicate options in a config file that I want to
rename uniquely. The following code does not work.
x = 0
class MultiDict(dict):
def __setitem__
Change by Mark Shannon :
--
nosy: +brandtbucher, iritkatriel
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Mark Dickinson added the comment:
> the constructed Fraction first computes the range of the values that the
> input string could have been rounded from
There's too much magic and guesswork here for my liking; I don't really see
this as feasible. Moreover, depending on whi
Mark Dickinson added the comment:
> in which case the interval we need is [0.095, 0.15]
Whoops, sorry; brain fail. If we're rounding to two sig figs, the next
representable value up from 0.01 is 0.011, while the next one down is 0.099, so
the interval we'd be interested in wou
Mark Dickinson added the comment:
Sigh:
> the next representable value up from 0.01 is 0.011
should say:
> the next representable value up from 0.10 is 0.11
I think I'll duck out and give my brain a rest before commenting further.
--
___
Mark Dickinson added the comment:
One more example: what interval is implied by an input string of "1600"? Is it
(1550, 1650)? Or (1595, 1605)? Or even (1599.5, 1600.5).
Sorry, I just don't see this working - there are two many arbitrary choices
involved in guessing what in
Mark Dickinson added the comment:
> I'd modify the optimization to be that we continue to seek the smallest
> denominator, but in the case that multiple numerators would give ratios
> within the computed interval then we choose the numerator among these that
> gives the rat
Mark Lonnemann added the comment:
I know, thanks though. I just thought there was a way to do it via dict_type=.
I've read it can be done, but is complex. I've yet to see any examples of how.
--
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Python tracker
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Mark Dickinson added the comment:
Okay, let's close here; as Raymond says, that doesn't prevent further
discussion on python-ideas.
> The notions are currently too immature to warrant more core developer time.
Agreed. It seems that what Lee wants is some kind of blend between
Mark Shannon added the comment:
New changeset c3ce7781e3afe6f2dec5eef8e87fd5a664519ae9 by Saul Shanabrook in
branch 'main':
bpo-46724: Fix dis support for overflow args (GH-31285)
https://github.com/python/cpython/commit/c3ce7781e3afe6f2dec5eef8e87fd5
Mark Shannon added the comment:
New changeset e2c28616ce6c3cdb1013c415125220a0b86b86a1 by Nikita Sobolev in
branch 'main':
bpo-46709: check eval breaker in specialized `CALL` opcodes (GH-31404)
https://github.com/python/cpython/commit/e2c28616ce6c3cdb1013c415125220
Mark Dickinson added the comment:
Re python-ideas: there's a mailing list:
https://mail.python.org/archives/list/python-id...@python.org/
But the https://discuss.python.org/c/ideas/ category also works for this.
--
___
Python tracker
&
Mark Dickinson added the comment:
> I gave the code example in order to make that clear.
Yep, that didn't help: reverse engineering the intended behaviour from a
complicated piece of code isn't easy. An up-front description of the intended
behaviour wo
Mark Shannon added the comment:
New changeset cf345e945f48f54785799390c2e92c5310847bd4 by Mark Shannon in
branch 'main':
bpo-46329: Change calling sequence (again) (GH-31373)
https://github.com/python/cpython/commit/cf345e945f48f54785799390c2e92c
Change by Mark Dickinson :
--
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New submission from Mark Gordon :
When using Condition variables to manage access to shared resources you can run
into starvation issues due to the thread that just gave up a resource (making a
call to notify/notify_all) having priority on immediately reacquiring that
resource before any of
Change by Mark Shannon :
--
pull_requests: +29595
pull_request: https://github.com/python/cpython/pull/31465
___
Python tracker
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New submission from Mark Shannon :
Computing whether an instruction is the first on a line (for tracing) in the
interpreter is complicated and slow. Doing it in the compiler should be simpler
and has no runtime cost.
Currently we decide if the current instruction is the first on a line, by
Change by Mark Dickinson :
--
title: Yaytext.net - Tạo văn bản chữ kiểu, kí tự đặc biệt độc đáo -> spam
___
Python tracker
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Mark Shannon added the comment:
New changeset 59585d6b2ea50d7bc3a9b336da5bde61367f527c by Mark Shannon in
branch 'main':
bpo-46329: Streamline calling sequence a bit. (GH-31465)
https://github.com/python/cpython/commit/59585d6b2ea50d7bc3a9b336da5bde
Change by Mark Shannon :
--
pull_requests: +29626
pull_request: https://github.com/python/cpython/pull/31496
___
Python tracker
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Mark Shannon added the comment:
New changeset 424023efee5b21567b4725015ef143b627112e3c by Brandt Bucher in
branch 'main':
bpo-46329: Fix test failure when `Py_STATS` is enabled (GH-31511)
https://github.com/python/cpython/commit/424023efee5b21567b4725015ef143
Mark Shannon added the comment:
New changeset 375a56bd4015596c0cf44129c8842a1fe7199785 by Brandt Bucher in
branch 'main':
bpo-45885: Don't un-adapt `COMPARE_OP` when collecting stats (GH-31516)
https://github.com/python/cpython/commit/375a56bd4015596c0cf44129c
Change by Mark Shannon :
--
nosy: +Mark.Shannon
nosy_count: 1.0 -> 2.0
pull_requests: +29655
pull_request: https://github.com/python/cpython/pull/31531
___
Python tracker
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Mark Shannon added the comment:
We need to decide what to do about dis.
I don't think we should have a `show_cache` option, as the caches are
meaningless junk without quickening (maybe we should drop the CACHE opcode, and
just use zeroes).
Instead we should have a `show_quickened` o
Change by Mark Shannon :
--
pull_requests: +29673
pull_request: https://github.com/python/cpython/pull/31552
___
Python tracker
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Mark Shannon added the comment:
New changeset a52d2528a405c1e2bfeb6470cb3313a5338dc45f by Dennis Sweeney in
branch 'main':
bpo-46823: Implement LOAD_FAST__LOAD_ATTR_INSTANCE_VALUE superinstruction
(GH-31484)
https://github.com/python/cpython/commit/a52d2528a405c1e2bfeb6470cb3313
Mark Shannon added the comment:
New changeset 2a6ece572ca38f989fca66f4c053cb16550bccd4 by Mark Shannon in
branch 'main':
bpo-45107: Specialize `LOAD_METHOD` for instances with dict. (GH-31531)
https://github.com/python/cpython/commit/2a6ece572ca38f989fca66f4c053cb
Mark Shannon added the comment:
Stefan,
f_lineno can be None for some opcodes, but there shouldn't be trace events if
it is.
E.g.
>>> def f():
... try:
... 1/0
... finally:
... pass
...
>>> list(f.__code__.co_lines())
[(0, 2, 1), (2, 4, 2),
Mark Shannon added the comment:
New changeset 0f41aac109c45aa468c432f798947c54d4178b3d by Brandt Bucher in
branch 'main':
bpo-46841: Use *inline* caching for `BINARY_OP` (GH-31543)
https://github.com/python/cpython/commit/0f41aac109c45aa468c432f798947c
Mark Shannon added the comment:
Making this a release blocker, as we really cannot leave this half finished for
the release.
Shouldn't be a problem, as we'll have it done in a week or so.
--
___
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Change by Mark Shannon :
--
priority: normal -> release blocker
___
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___
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Mark Shannon added the comment:
New changeset c579243eb62d3182c84004cd72dcf6ef59100643 by Irit Katriel in
branch 'main':
bpo-46808: remove NEXT_BLOCK() from compile.c (GH-31448)
https://github.com/python/cpython/commit/c579243eb62d3182c84004cd72dcf6ef59100643
--
nosy: +Ma
Change by Mark Shannon :
--
pull_requests: +29697
pull_request: https://github.com/python/cpython/pull/31575
___
Python tracker
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Mark Dickinson added the comment:
I'd be happy to see `float.__setformat__` go, if it's not still needed for
Python's test suite (which was its entire raison d'être). If no-one noticed the
accidental misnaming, then it's pretty clear no-one's been using it.
I
Mark Dickinson added the comment:
Thanks, Victor. I think this can be closed now.
--
resolution: -> fixed
stage: patch review -> resolved
status: open -> closed
___
Python tracker
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Mark Dickinson added the comment:
> I reopen the issue for the second part of my plan
Hmm. That sounds like it should be a separate issue, or at the least, this
issue should be retitled. It's helpful to keep issue titles accurate.
--
__
Mark Shannon added the comment:
New changeset 424ecab494d538650ba34937cdd710094ccb2275 by Brandt Bucher in
branch 'main':
bpo-46841: Use inline caching for `UNPACK_SEQUENCE` (GH-31591)
https://github.com/python/cpython/commit/424ecab494d538650ba34937cdd710
Mark Shannon added the comment:
New changeset 4558af5a8f8e56a9b0dc11f6e834c47e0fd05f9e by Mark Shannon in
branch 'main':
bpo-46841: Move the cache for `LOAD_GLOBAL` inline. (GH-31575)
https://github.com/python/cpython/commit/4558af5a8f8e56a9b0dc11f6e834c4
Change by Mark Shannon :
--
pull_requests: +29743
pull_request: https://github.com/python/cpython/pull/31618
___
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Change by Mark Dickinson :
--
components: -Distutils, Documentation, Extension Modules, Installation,
Parser, email
nosy: -barry, docs@python, dstufft, eric.araujo, lys.nikolaou, pablogsal
type: security -> behavior
___
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Change by Mark Dickinson :
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components: +Extension Modules
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Mark Shannon added the comment:
New changeset 7820a5897e7762df23bff1cbe749652130654a08 by Brandt Bucher in
branch 'main':
bpo-46841: Use inline caching for `COMPARE_OP` (GH-31622)
https://github.com/python/cpython/commit/7820a5897e7762df23bff1cbe74965
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