Serhiy Storchaka added the comment:
>From documentation:
.. c:function:: void PyObject_GC_Track(PyObject *op)
Adds the object *op* to the set of container objects tracked by the
collector. The collector can run at unexpected times so objects must be
valid while being tracked. T
Change by Serhiy Storchaka :
--
resolution: -> duplicate
stage: patch review -> resolved
status: open -> closed
superseder: -> collections.abc.Indexable
___
Python tracker
<https://bugs.python
Change by Serhiy Storchaka :
--
resolution: -> fixed
stage: patch review -> resolved
status: open -> closed
___
Python tracker
<https://bugs.python.or
Serhiy Storchaka added the comment:
I have same doubts.
See also issue32888.
--
resolution: -> duplicate
stage: patch review -> resolved
status: open -> closed
superseder: -> Improve exception message in ast.literal_eval
___
Py
Serhiy Storchaka added the comment:
New changeset 15ae75d660befe643ed42eb2707a557cea97256c by Serhiy Storchaka
(Ricardo Bánffy) in branch 'master':
bpo-38294: Add list of no-longer-escaped chars to re.escape documentation.
(GH-16442)
https://github.com/python/cpyt
Serhiy Storchaka added the comment:
I am sure this will break third-party projects. But I thing that we should not
revert this change, as it completely matches the documentation. It is good that
it was applied so early at development cycle.
Stefan, could you please test Cython and lxml with
New submission from Serhiy Storchaka :
Example:
>>> from typing import NamedTuple
>>> import pickle
>>> class A:
... class B(NamedTuple):
... x: int
...
>>> pickle.dumps(A.B)
Traceback (most recent call last):
File "", line 1, in
_
Change by Serhiy Storchaka :
--
keywords: +patch
pull_requests: +16226
stage: -> patch review
pull_request: https://github.com/python/cpython/pull/16641
___
Python tracker
<https://bugs.python.org/issu
New submission from Serhiy Storchaka :
Special forms NoReturn, Final, Literal and class ForwardRef are not shown in
the help() output.
--
components: Library (Lib)
messages: 354177
nosy: gvanrossum, levkivskyi, serhiy.storchaka
priority: normal
severity: normal
status: open
title
Serhiy Storchaka added the comment:
Sorry, I looked at wrong Python version.
--
resolution: -> works for me
stage: -> resolved
status: open -> closed
___
Python tracker
<https://bugs.python.or
New submission from Serhiy Storchaka :
typing.SupportsXXX classes do not have docstrings and help() shows the
docstring of the parent class instead, which is wrong ("Base class for protocol
classes...").
--
components: Library (Lib)
messages: 354179
nosy: gvanrossum,
Change by Serhiy Storchaka :
--
keywords: +patch
pull_requests: +16227
stage: -> patch review
pull_request: https://github.com/python/cpython/pull/16644
___
Python tracker
<https://bugs.python.org/issu
Serhiy Storchaka added the comment:
New changeset d05b000c6bcd39dba4f4b2656e45954802649562 by Serhiy Storchaka in
branch 'master':
bpo-38371: Tkinter: deprecate the split() method. (GH-16584)
https://github.com/python/cpython/commit/d05b000c6bcd39dba4f4b2656e4595
Serhiy Storchaka added the comment:
New changeset b690a2759e62d9ee0b6ea1b20e8f7e4b2cdbf8bb by Serhiy Storchaka in
branch 'master':
bpo-36698: IDLE no longer fails when write non-encodable characters to stderr.
(GH-16583)
https://github.com/python/cpyt
Change by Serhiy Storchaka :
--
resolution: -> fixed
stage: patch review -> resolved
status: open -> closed
___
Python tracker
<https://bugs.python.or
Change by Serhiy Storchaka :
--
resolution: -> fixed
stage: patch review -> resolved
status: open -> closed
___
Python tracker
<https://bugs.python.or
Serhiy Storchaka added the comment:
And with PR 16583 it is now completely fixed. I.e. it can only fail in cases
when the regular interactive interpreter fails too.
--
resolution: -> fixed
stage: needs patch -> resolved
status: open -&g
Serhiy Storchaka added the comment:
New changeset 8252c52e57283515ace5d4251584255dc5c60eb5 by Serhiy Storchaka in
branch 'master':
bpo-38407: Add docstrings for typing.SupportsXXX classes. (GH-16644)
https://github.com/python/cpython/commit/8252c52e57283515ace5d425158425
Serhiy Storchaka added the comment:
New changeset 13abda41003daf599587991d8291f0dacf6e9519 by Serhiy Storchaka in
branch 'master':
bpo-38405: Make nested subclasses of typing.NamedTuple pickleable. (GH-16641)
https://github.com/python/cpython/commit/13abda41003daf599587991d8291f0
Serhiy Storchaka added the comment:
New changeset 43f5c0c4d0a608c04c3978adb45117f3943203b7 by Serhiy Storchaka
(Ricardo Bánffy) in branch '3.7':
[3.7] bpo-38294: Add list of no-longer-escaped chars to re.escape
documentation. (GH-16442) (GH-16647)
https://github.com/python/cpyt
Serhiy Storchaka added the comment:
Dictionary preserve the insertion order starting from Python 3.7 (actually from
3.6, but it was not guarantied). I am surprised that you got different result
in 3.6. I cannot reproduce it.
In older Python versions you can pass object_pairs_hook
Change by Serhiy Storchaka :
--
pull_requests: +16254
pull_request: https://github.com/python/cpython/pull/16673
___
Python tracker
<https://bugs.python.org/issue38
Change by Serhiy Storchaka :
--
pull_requests: +16255
pull_request: https://github.com/python/cpython/pull/16674
___
Python tracker
<https://bugs.python.org/issue38
Serhiy Storchaka added the comment:
Thank you for your contribution Ricardo!
--
resolution: -> fixed
stage: patch review -> resolved
status: open -> closed
___
Python tracker
<https://bugs.python.or
Serhiy Storchaka added the comment:
New changeset 87db4d343c9609137f6e62aa3595db610a33842c by Serhiy Storchaka in
branch '3.7':
[3.7] bpo-38405: Make nested subclasses of typing.NamedTuple pickleable.
(GH-16641). (GH-16674)
https://github.com/python/cpyt
Serhiy Storchaka added the comment:
New changeset 0b354fc2bfe1a4624551907df396ed36ea8bf4ca by Serhiy Storchaka in
branch '3.7':
[3.7] bpo-38407: Add docstrings for typing.SupportsXXX classes. (GH-16644).
(GH-16673)
https://github.com/python/cpyt
Change by Serhiy Storchaka :
--
resolution: -> fixed
stage: patch review -> resolved
status: open -> closed
___
Python tracker
<https://bugs.python.or
Change by Serhiy Storchaka :
--
resolution: -> fixed
stage: patch review -> resolved
status: open -> closed
___
Python tracker
<https://bugs.python.or
Change by Serhiy Storchaka :
--
pull_requests: +16287
pull_request: https://github.com/python/cpython/pull/16701
___
Python tracker
<https://bugs.python.org/issue38
Serhiy Storchaka added the comment:
Oh, Samuel already made a PR. Then I withdraw PR 16701.
--
nosy: +serhiy.storchaka
___
Python tracker
<https://bugs.python.org/issue38
Serhiy Storchaka added the comment:
How often do you need to add three or more lists in comparison with other uses
of the "+" operator?
How larger is the benefit of this optimization?
How much it slows down other uses of the "+" operator?
Would be nice if you provide
New submission from Serhiy Storchaka :
It likely happened when it was edited on Windows.
--
assignee: docs@python
components: Documentation
messages: 354428
nosy: docs@python, lukasz.langa, serhiy.storchaka
priority: normal
severity: normal
status: open
title: Doc/whatsnew/3.8.rst has
Change by Serhiy Storchaka :
--
keywords: +patch
pull_requests: +16293
stage: -> patch review
pull_request: https://github.com/python/cpython/pull/16715
___
Python tracker
<https://bugs.python.org/issu
Serhiy Storchaka added the comment:
New changeset cbb548130caf24275fa16100bccc537570cb46df by Serhiy Storchaka in
branch 'master':
bpo-38442: Remove an execution bit from Doc/whatsnew/3.8.rst. (GH-16715)
https://github.com/python/cpython/commit/cbb548130caf24275fa16100bccc53
Serhiy Storchaka added the comment:
Strange, it was only in master.
--
resolution: -> fixed
stage: patch review -> resolved
status: open -> closed
versions: -Python 3.8
___
Python tracker
<https://bugs.python.or
Serhiy Storchaka added the comment:
See https://en.wikipedia.org/wiki/Denormal_number.
--
nosy: +serhiy.storchaka
___
Python tracker
<https://bugs.python.org/issue38
Serhiy Storchaka added the comment:
Eryk, I think testing for bool in _fd_converter and issuing a warning is a good
idea. Do you want to create a PR?
--
nosy: +serhiy.storchaka
___
Python tracker
<https://bugs.python.org/issue38
Serhiy Storchaka added the comment:
It is already documented, with examples. I do not think the documentation can
be made better.
--
nosy: +serhiy.storchaka
___
Python tracker
<https://bugs.python.org/issue38
Serhiy Storchaka added the comment:
> I do not see any significant change in + operator timing on my machine
> (again, just a rough test):
Because the time includes the time of iterating, which can be significant in
comparison with adding two integers. Please use the pyperf modul
Change by Serhiy Storchaka :
--
keywords: +patch
pull_requests: +16319
stage: -> patch review
pull_request: https://github.com/python/cpython/pull/16742
___
Python tracker
<https://bugs.python.org/issu
Serhiy Storchaka added the comment:
New changeset 140a7d1f3579e778656a6b6bfad72489e9870a4d by Serhiy Storchaka in
branch 'master':
bpo-38378: Rename parameters "out" and "in" of os.sendfile(). (GH-16742)
https://github.com/python/cpython/commit/140a7d1f35
Change by Serhiy Storchaka :
--
resolution: -> fixed
stage: patch review -> resolved
status: open -> closed
___
Python tracker
<https://bugs.python.or
Serhiy Storchaka added the comment:
PR 14166 now fixes the issue in more generic way. It skips one additional frame
when type.__new__ is called not directly from type.__call__.
--
___
Python tracker
<https://bugs.python.org/issue28
Serhiy Storchaka added the comment:
New changeset 793cb85437299a3da3d74fe65480d720af330cbb by Serhiy Storchaka
(Samuel Colvin) in branch 'master':
bpo-38431: Fix __repr__ method of InitVar to work with typing objects.
(GH-16702)
https://github.com/python/cpyt
Serhiy Storchaka added the comment:
New changeset b16e382c446d76ede22780b15c75f43c5f132e25 by Serhiy Storchaka
(Zackery Spytz) in branch 'master':
bpo-38202: Fix a crash in dict_view & non-itearble. (GH-16241)
https://github.com/python/cpython/commit/b16e382c446d76ede22780b15c
Change by Serhiy Storchaka :
--
resolution: -> fixed
stage: patch review -> resolved
status: open -> closed
___
Python tracker
<https://bugs.python.or
Serhiy Storchaka added the comment:
Thank you for your contribution Samuel!
--
resolution: -> fixed
stage: patch review -> resolved
status: open -> closed
___
Python tracker
<https://bugs.python.or
Change by Serhiy Storchaka :
--
pull_requests: +16338
pull_request: https://github.com/python/cpython/pull/16769
___
Python tracker
<https://bugs.python.org/issue37
Serhiy Storchaka added the comment:
The first argument of iterdecode() should be an iterable of bytes objects, not
a bytes object. Try codecs.iterdecode([enc], 'utf-8')
--
nosy: +serhiy.storchaka
___
Python tracker
<https://bu
Serhiy Storchaka added the comment:
What is the benefit of such change?
--
nosy: +serhiy.storchaka
___
Python tracker
<https://bugs.python.org/issue38
Change by Serhiy Storchaka :
--
components: +IO
nosy: +benjamin.peterson, stutzbach
type: -> behavior
versions: +Python 2.7, Python 3.8, Python 3.9
___
Python tracker
<https://bugs.python.org/issu
Serhiy Storchaka added the comment:
It was added as a replacement of locale aware isdigit(). It was initially used
only for implementing bytes.isdigit() and in PyOS_ascii_strtod().
isdigit() is not used in Modules/_struct.c, so there is nothing to replace with
Py_ISDIGIT(). Currently
Serhiy Storchaka added the comment:
I left this on to the struct module maintainers.
--
nosy: +mark.dickinson, meador.inge
___
Python tracker
<https://bugs.python.org/issue38
Serhiy Storchaka added the comment:
I just discovered that the assignment operator leaks variables out of
comprehensions.
>>> [(j:=i*i)+1/j for i in range(1, 3)]
[2.0, 4.25]
>>> j
4
>>> g = ((j:=i*i*i)+1/j for i in range(1, 3))
>>> list(g)
[2.0, 8.125]
>
Change by Serhiy Storchaka :
--
pull_requests: +16365
stage: -> patch review
pull_request: https://github.com/python/cpython/pull/16814
___
Python tracker
<https://bugs.python.org/issu
Serhiy Storchaka added the comment:
Thank you for your report Mikko. Yes, the heuristic used in Python 3 is unable
to catch all inconsistencies in using tabs and spaces.
Such bug was already reported early. There should be an open issue.
--
nosy: +serhiy.storchaka
Serhiy Storchaka added the comment:
Maybe just explain defaults in the text?
Print *objects* to the text stream *file* (the standard output by default),
separated by *sep* (a space by default) and followed
by *end* (a newline by default).
--
nosy: +serhiy.storchaka
Serhiy Storchaka added the comment:
What about CLD_STOPPED?
For reference, other CLD_* constants were added in issue10812.
--
nosy: +rosslagerwall, serhiy.storchaka
versions: +Python 3.9 -Python 3.7
___
Python tracker
<https://bugs.python.
Serhiy Storchaka added the comment:
Concur with Karthikeyan.
pathlib.Path provides an object oriented interface to file path operations and
to low-level filesystem operations. rmtree() is a high-level and complex
operation. Instead of adding more and more complex operations to the Path
Serhiy Storchaka added the comment:
os.mkdir() and os.rmdir() are wrappers around corresponding system calls. I do
not think they should have additional parameters, especially for functionality
which can be easily achieved by wrapping the call with the try/except block.
For shutil.rmtree
Serhiy Storchaka added the comment:
Do you know why there is assertRaises(), but there is no assertNotRaises()?
Because assertNotRaises(Exception, callable, *args, **kwargs) would be
equivalent to just callable(*args, **kwargs). Call the function, and if is
raised an exception, the test
Serhiy Storchaka added the comment:
Considering the code as:
x = {
1,
2
}
It first gets constant 1.
Then gets constant 2.
Then build a set.
Then assign it to the variable.
Obviously that the variable is assigned at line 1, so you would get a backward
line in any case. The set display is
Serhiy Storchaka added the comment:
It is already documented. See note 2 at
https://docs.python.org/3/library/stdtypes.html#common-sequence-operations.
--
nosy: +serhiy.storchaka
___
Python tracker
<https://bugs.python.org/issue38
Serhiy Storchaka added the comment:
See also array and mmap.
--
nosy: +serhiy.storchaka
___
Python tracker
<https://bugs.python.org/issue38465>
___
___
Pytho
Serhiy Storchaka added the comment:
Why this ABI is exported at all? These functions are only used in the sys
module, why they are defined in ceval.c instead of be static functions in
sysmodule.c?
--
nosy: +serhiy.storchaka
___
Python tracker
Serhiy Storchaka added the comment:
New changeset 8eb27cc35489848596d9fb4b1c91fac00ae75d21 by Serhiy Storchaka
(Ashley Whetter) in branch '2.7':
bpo-32758: Warn that compile() can crash when compiling to an AST object
(GH-6043) (GH-16566)
https://github.com/python/cpyt
Serhiy Storchaka added the comment:
New changeset dedb99acdb5bbc179872235f975248133d3fb440 by Serhiy Storchaka
(Ashley Whetter) in branch '2.7':
bpo-32758: Warn that ast.parse() and ast.literal_eval() can segfault the
interpreter (GH-5960) (GH-16565)
https://github.com/python/cpyt
Change by Serhiy Storchaka :
--
resolution: -> fixed
stage: patch review -> resolved
status: open -> closed
___
Python tracker
<https://bugs.python.or
Serhiy Storchaka added the comment:
I think such kind of questions should be asked on Python-Dev.
Even the 2.7 stdlib and tests are not completely compatible with Jython.
--
___
Python tracker
<https://bugs.python.org/issue38
Change by Serhiy Storchaka :
--
nosy: +carljm, ncoghlan
___
Python tracker
<https://bugs.python.org/issue38524>
___
___
Python-bugs-list mailing list
Unsub
Serhiy Storchaka added the comment:
You have to call __set_name__() if you create a cached_property dynamically
outside of the class namespace.
p = cached_property(age)
p.__set_name__(cls, 'age3')
cls.age3 = p
(And setattr() is not needed here.)
--
nosy: +serhiy
Serhiy Storchaka added the comment:
See issue38517.
For now we need to better document the use of __set_name__ with cached_property.
--
___
Python tracker
<https://bugs.python.org/issue38
Serhiy Storchaka added the comment:
The proposed fix fixes a crash, but there is other bug in iterating shared
dicts.
class A:
def __init__(self, x, y):
if x: self.x = x
if y: self.y = y
a = A(1, 2)
print(list(iter(a.__dict__)))
print(list(reversed(a.__dict__)))
b = A(1
Serhiy Storchaka added the comment:
AFAIK there is existing issue for this idea.
I have doubts about performance. I added _PyObject_LookupAttr in particularly
to avoid an overhead of raising and silencing an AttributeError. I believe most
performance sensitive code in the core now uses it
Serhiy Storchaka added the comment:
I am surprised that it was SO expensive.
Pathlib would largely benefit from cached_property if it be compatible with
slots.
--
___
Python tracker
<https://bugs.python.org/issue38
Serhiy Storchaka added the comment:
Why private? They should be public.
But the problem is that making a reference to the object we can prolong its
lifetime and even create a reference loop. There was a proposition to create a
weak reference, but not all types support weak reference
Serhiy Storchaka added the comment:
See issue18156, issue22716 and PEP 473.
--
___
Python tracker
<https://bugs.python.org/issue38530>
___
___
Python-bugs-list m
Serhiy Storchaka added the comment:
Would not be better to change an AttributeError to TypeError? Seems this is the
only place in the core when missing special method causes an AttributeError and
not TypeError.
--
nosy: +serhiy.storchaka
Change by Serhiy Storchaka :
--
nosy: +serhiy.storchaka
___
Python tracker
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___
___
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Unsub
Change by Serhiy Storchaka :
--
keywords: +patch
pull_requests: +16406
stage: -> patch review
pull_request: https://github.com/python/cpython/pull/16860
___
Python tracker
<https://bugs.python.org/issu
Change by Serhiy Storchaka :
--
keywords: +patch
pull_requests: +16407
stage: -> patch review
pull_request: https://github.com/python/cpython/pull/16861
___
Python tracker
<https://bugs.python.org/issu
Change by Serhiy Storchaka :
--
versions: +Python 3.9 -Python 3.5, Python 3.6
___
Python tracker
<https://bugs.python.org/issue38535>
___
___
Python-bugs-list m
New submission from Serhiy Storchaka :
There are possible leaks in PyArg_Parse and similar functions for format units
"es#" and "et#". Macros STORE_SIZE and (since 3.8) FETCH_SIZE can leave the
function despite there is an own reference to an encoded string (s). The le
Change by Serhiy Storchaka :
--
keywords: +patch
pull_requests: +16414
stage: -> patch review
pull_request: https://github.com/python/cpython/pull/16869
___
Python tracker
<https://bugs.python.org/issu
Serhiy Storchaka added the comment:
New changeset 06cd5b6acd98205adae1a3ea4223e88f38ad55ab by Serhiy Storchaka (Hai
Shi) in branch 'master':
bpo-38465: Convert the type of exports counters to Py_ssize_t. (GH-16746)
https://github.com/python/cpyt
Serhiy Storchaka added the comment:
Thank you for your contribution hai shi!
--
resolution: -> fixed
stage: patch review -> resolved
status: open -> closed
___
Python tracker
<https://bugs.python.or
Serhiy Storchaka added the comment:
New changeset 919f0bc8c904d3aa13eedb2dd1fe9c6b0555a591 by Serhiy Storchaka in
branch 'master':
bpo-38208: Simplify string.Template by using __init_subclass__(). (GH-16256)
https://github.com/python/cpython/commit/919f0bc8c904d3aa13eedb2dd1fe9c
Change by Serhiy Storchaka :
--
resolution: -> fixed
stage: patch review -> resolved
status: open -> closed
___
Python tracker
<https://bugs.python.or
Serhiy Storchaka added the comment:
New changeset a9ed91e6c2f0f1a9960b1382321918448228a801 by Serhiy Storchaka
(Sergey Fedoseev) in branch 'master':
bpo-27961: Replace PY_LONG_LONG with long long. (GH-15386)
https://github.com/python/cpython/commit/a9ed91e6c2f0f1a9960b1382321918
Serhiy Storchaka added the comment:
New changeset 2eba6ad7bf3a5beeed54209a0107be8e1ac77767 by Serhiy Storchaka
(Dong-hee Na) in branch 'master':
bpo-38493: Add os.CLD_KILLED and os.CLD_STOPPED. (GH-16821)
https://github.com/python/cpython/commit/2eba6ad7bf3a5beeed54209a0107be
Serhiy Storchaka added the comment:
Thank you for your contribution Dong-hee!
--
resolution: -> fixed
stage: patch review -> resolved
status: open -> closed
___
Python tracker
<https://bugs.python.or
Serhiy Storchaka added the comment:
New changeset 5bc6a7c06eda20ba131ecba6752be0506d310181 by Serhiy Storchaka in
branch 'master':
bpo-38540: Fix possible leak in PyArg_Parse for "es#" and "et#". (GH-16869)
https://github.com/python/cpython/commit/5bc6a7c06e
Serhiy Storchaka added the comment:
I think it is too late to add this feature in 2.7. See
https://www.python.org/dev/peps/pep-0373/#release-schedule, the feature freeze
was 9.5 years ago.
--
nosy: +serhiy.storchaka
___
Python tracker
<ht
Serhiy Storchaka added the comment:
New changeset 10ecbadb799ddf3393d1fc80119a3db14724d381 by Serhiy Storchaka in
branch 'master':
bpo-31202: Preserve case of literal parts in Path.glob() on Windows. (GH-16860)
https://github.com/python/cpython/commit/10ecbadb799ddf3393d1fc80119a3d
Change by Serhiy Storchaka :
--
pull_requests: +16421
pull_request: https://github.com/python/cpython/pull/16876
___
Python tracker
<https://bugs.python.org/issue38
Change by Serhiy Storchaka :
--
pull_requests: +16422
pull_request: https://github.com/python/cpython/pull/16877
___
Python tracker
<https://bugs.python.org/issue38
Serhiy Storchaka added the comment:
New changeset ccdfeb7e969bf3aafd43dbe6581c30f66f2b0890 by Serhiy Storchaka in
branch '2.7':
[2.7] bpo-38540: Fix possible leak in PyArg_Parse for "es#" and "et#".
(GH-16869). (GH-16877)
https://gi
Serhiy Storchaka added the comment:
New changeset 928c68eee620cc6b624a195375143c2aa55644a4 by Serhiy Storchaka in
branch '3.7':
bpo-38540: Revert a warning if PY_SSIZE_T_CLEAN is not defined. (GH-16876)
https://github.com/python/cpython/commit/928c68eee620cc6b624a195375143c
Change by Serhiy Storchaka :
--
resolution: -> fixed
stage: patch review -> resolved
status: open -> closed
___
Python tracker
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Serhiy Storchaka added the comment:
The pointer can also go before the beginning of the array in a loop if i
becomes 0.
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Python tracker
<https://bugs.python.org/issue38
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