[issue34875] Change .js mime to "text/javascript"

[jiahua wang]

Change by jiahua wang :


--
nosy: +wangjiahua
nosy_count: 3.0 -> 4.0
pull_requests: +28927
stage: resolved -> patch review
pull_request: https://github.com/python/cpython/pull/30740

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[issue21987] TarFile.getmember on directory requires trailing slash iff over 100 chars

[miss-islington]

miss-islington  added the comment:


New changeset 1d11fdd3eeff77ba600278433b7ab0ce4d2a7f3b by Miss Islington (bot) 
in branch '3.10':
bpo-21987: Fix TarFile.getmember getting a dir with a trailing slash (GH-30283)
https://github.com/python/cpython/commit/1d11fdd3eeff77ba600278433b7ab0ce4d2a7f3b


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[issue45452] Support crash tolerance feature for gdbm module

[Dong-hee Na]

Dong-hee Na  added the comment:

After discussion with Victor by using DM, I decided to provide high-level API 
instead of low-level APIs.

- gdbm.open(filename, snapshots=(foo, bar)) 

will do everything at once.

Regards,
Dong-hee

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[issue45452] Support crash tolerance feature for gdbm module

[Dong-hee Na]

Change by Dong-hee Na :


--
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[issue46449] Deep-freezed modules create inconsistency in sys.gettotalrefcount() (_Py_Reftotal)

[STINNER Victor]

STINNER Victor  added the comment:

> Hm, the deep-frozen objects are statically initialized with a very large 
> refcount that isn't accounted for (they are intended to be immortal). It 
> seems that Py_Finalize() somehow decrefs those objects. I guess this means we 
> need some kind of flag indicating certain objects are immortal (Eric has 
> proposed several schemes), then we could just mark these objects as immortal.

The problem is only _Py_RefTotal. Maybe frozen_only_do_patchups() should 
increment _Py_RefTotal when Python it build with Py_DEBUG macro defined, so it 
can be safely decremented in Py_Finalize()?

Adding a flag in PyObject/PyTypeObject and modifying Py_DECREF() sounds more 
controversial. I suggest to do that later ;-) (I am not convinced that it's the 
best approach.) I would suggest to write a PEP for immortal objects.

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[issue46449] Deep-freezed modules create inconsistency in sys.gettotalrefcount() (_Py_Reftotal)

[STINNER Victor]

STINNER Victor  added the comment:

> This reminds me, since https://github.com/python/cpython/pull/30715 (which I 
> merged yesterday) the deep-frozen objects also reference the small ints 
> directly, as well as the singleton for b"". Is this even safe across 
> Py_Finalize()/Py_Initialize()? If not, we'll need to roll that back as well.

I don't know.

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[issue46080] argparse.BooleanOptionalAction with default=argparse.SUPPRESS and help specified raises exception

[Tal Einat]

Tal Einat  added the comment:

Thanks for the report and the PR, Felix!

--
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stage: patch review -> resolved
status: open -> closed

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[issue46448] TypedDict inspect.signature error

[Karthikeyan Singaravelan]

Karthikeyan Singaravelan  added the comment:

This could be due to issue40187

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[issue41857] Document timeout arguments to poll() in select module

[Tal Einat]

Change by Tal Einat :


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pull_request: https://github.com/python/cpython/pull/30741

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[issue41857] Document timeout arguments to poll() in select module

[Tal Einat]

Change by Tal Einat :


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[issue46399] Addition of `mapping` attribute to dict views classes has inadvertently broken type-checkers

[Akuli]

Akuli  added the comment:

I now agree that `# type: ignore` in dict subclasses makes sense the most, and 
exposing the views doesn't solve practical problems.

We talked more with the people who brought this up in typing. Turns out that 
the correct solution to their problems was to just inherit from MutableMapping 
instead of inheriting from dict. If you really need to inherit from dict and 
make .keys() do something else than it does by default, you're most likely 
trying to override all dict methods that do something with the keys, and you 
should just inherit from MutableMapping instead.

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[issue41857] Document timeout arguments to poll() in select module

[Tal Einat]

Tal Einat  added the comment:


New changeset f6e5972fa984c10d47694973db1c91c6486d654a by Tal Einat in branch 
'3.10':
[3.10] bpo-41857: mention timeout argument units in select.poll() and 
select.depoll() doc-strings (GH-22406)
https://github.com/python/cpython/commit/f6e5972fa984c10d47694973db1c91c6486d654a


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[issue44686] use pkgutil.resolve_name in unittest.mock

[Yassir Karroum]

Yassir Karroum  added the comment:

I think we can close this one

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[issue41857] Document timeout arguments to poll() in select module

[Tal Einat]

Tal Einat  added the comment:


New changeset 656971e4953a70a6048170377888db5530eea0a6 by Tal Einat in branch 
'3.9':
[3.9] bpo-41857: mention timeout argument units in select.poll() and 
select.depoll() doc-strings (GH-22406)
https://github.com/python/cpython/commit/656971e4953a70a6048170377888db5530eea0a6


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[issue41857] Document timeout arguments to poll() in select module

[Tal Einat]

Tal Einat  added the comment:

Thanks for this improvement, Zane!

--
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stage: patch review -> resolved
status: open -> closed

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[issue46450] namedtuple leaks data between instances when field's default value is empty list

[Eric V. Smith]

Eric V. Smith  added the comment:

Also see 
https://docs.python.org/3/faq/programming.html#why-are-default-values-shared-between-objects

--
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resolution:  -> not a bug
stage:  -> resolved
status: open -> closed

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[issue23325] Turn SIG_DFL and SIG_IGN into functions

[Christian Heimes]

Christian Heimes  added the comment:

Understood, thanks!

A trivial fix for the integer comparison bug would solve my issue:

--- a/Modules/signalmodule.c
+++ b/Modules/signalmodule.c
@@ -527,21 +527,20 @@ signal_signal_impl(PyObject *module, int signalnum, 
PyObject *handler)
  "signal number out of range");
 return NULL;
 }
-if (handler == modstate->ignore_handler) {
+if (PyCallable_Check(handler)) {
+func = signal_handler;
+}
+else if (PyObject_RichCompareBool(handler, modstate->ignore_handler, 
Py_EQ) == 1) {
 func = SIG_IGN;
 }
-else if (handler == modstate->default_handler) {
+else if (PyObject_RichCompareBool(handler, modstate->default_handler, 
Py_EQ) == 1) {
 func = SIG_DFL;
-}
-else if (!PyCallable_Check(handler)) {
+} else {
 _PyErr_SetString(tstate, PyExc_TypeError,
  "signal handler must be signal.SIG_IGN, "
  "signal.SIG_DFL, or a callable object");
 return NULL;
 }
-else {
-func = signal_handler;
-}
 
 /* Check for pending signals before changing signal handler */
 if (_PyErr_CheckSignalsTstate(tstate)) {

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[issue46452] Possible false detection of Windows LZMA library as a malware by Avast

[Nathan/Eilisha Shiraini]

New submission from Nathan/Eilisha Shiraini :

Sending this here for information mostly

On Windows, a recent (2022-01-21) Avast update makes it target the binary LZMA 
module embedded in Python 3.9 and 3.10.

I'm talking about this file: \DLLs\_lzma.pyd

I've run a VirusTotal scan of the 3.10 version of the file, which has returned 
2 positives out of 67 at the time I'm writing this:
https://www.virustotal.com/gui/file/f904b02720b6498634fc045e3cc2a21c04505c6be81626fe99bdb7c12cc26dc6

Can you confirm this is a false positive? Given the VirusTotal result I'm 
assuming it is, however I'd like to get official confirmation.

--
components: Windows
messages: 411105
nosy: paul.moore, steve.dower, thfetoile, tim.golden, zach.ware
priority: normal
severity: normal
status: open
title: Possible false detection of Windows LZMA library as a malware by Avast
versions: Python 3.10, Python 3.9

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[issue46452] Possible false detection of Windows LZMA library as a malware by Avast

[Nathan/Eilisha Shiraini]

Nathan/Eilisha Shiraini  added the comment:

Also I should have added: I have already reported the file to Avast as a 
possible false positive, and I'm working on an app that heavily relies on LZMA 
so this has a high impact for me.

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[issue31876] python363.chm includes gibberish

[Irit Katriel]

Irit Katriel  added the comment:

3.6 is no longer maintained.

--
nosy: +iritkatriel
resolution:  -> out of date
stage:  -> resolved
status: open -> closed

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[issue42197] Disable automatic update of frame locals during tracing

[Mark Shannon]

Mark Shannon  added the comment:

While the various frame and debugger PEPs that are open offer a better solution 
to this, they might not be accepted for 3.11.

So I'd like to revisit this.


Removing the calls to `PyFrame_FastToLocals` and friends cuts the overhead of 
tracing down a lot. A *lot*.

Using Fabio's example I get the following slowdowns:
No calls to   PyFrame_FastToLocals`: x10
Main branch with one local variable: x16
Main branch with six locals variables: x50

This is quite a compelling reason to remove the calls to `PyFrame_FastToLocals`.

The questions is "what will we break doing this"?
All the tests pass, so that seems promising.

Ned, how would this impact coverage.py?

--
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[issue34875] Change .js mime to "text/javascript"

[Oleg Iarygin]

Oleg Iarygin  added the comment:

Myles, it looks like the draft 14 contains a mismatch in 6.2.1:

> # 6.2.1. text/ecmascript
>
> Type name: application
> Subtype name: ecmascript

In header it's `text`, in details it's `application`. Is it intended?

I believe that a typo wouldn't pass though fourteen revisions but nevertheless, 
just to be safe.

--
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[issue46417] Clear static types in Py_Finalize() for embedded Python

[STINNER Victor]

Change by STINNER Victor :


--
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pull_request: https://github.com/python/cpython/pull/30743

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[issue46417] Clear static types in Py_Finalize() for embedded Python

[STINNER Victor]

Change by STINNER Victor :


--
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pull_request: https://github.com/python/cpython/pull/30744

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[issue46453] argparse subparser help text is not escaped before string formatting

[Peder Bergebakken Sundt]

New submission from Peder Bergebakken Sundt :

The `help` text in add_argument of a subparser in argparse can not contain a 
`%`, as it will affect string formatting. This often results in an exception.

See repro.py for a reproduction, tested in Python 3.7 - 3.10.

--
components: Library (Lib)
files: repro.py
messages: 40
nosy: pbsds
priority: normal
severity: normal
status: open
title: argparse subparser help text is not escaped before string formatting
versions: Python 3.10, Python 3.7, Python 3.8, Python 3.9
Added file: https://bugs.python.org/file50569/repro.py

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[issue46453] argparse subparser help text is not escaped before string formatting

[Peder Bergebakken Sundt]

Change by Peder Bergebakken Sundt :


--
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[issue1635741] Py_Finalize() doesn't clear all Python objects at exit

[STINNER Victor]

Change by STINNER Victor :


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pull_request: https://github.com/python/cpython/pull/30744

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[issue42197] Disable automatic update of frame locals during tracing

[Ned Batchelder]

Ned Batchelder  added the comment:

Off the top of my head, I'm not sure this affects coverage.py at all, but I 
could be missing something.  Does PR 23028 have all the changes, or is there 
some other python/cpython branch I can test with?

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[issue42197] Disable automatic update of frame locals during tracing

[Mark Shannon]

Mark Shannon  added the comment:

Yes the PR has all the changes.

It is just the changes sysmodule.c that you need:
https://github.com/python/cpython/pull/23028/files#diff-a3a5c73931235f7f344c072dc755d6508e13923db3f5d581c5e88652075871cb

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[issue46454] '0 -> /dev/null' is lost

[tongxiaoge]

New submission from tongxiaoge :

I found a problem in the environment of python2 and python3, as follows:

in python2:
```
VM-0-13-suse:~ # python2 -V
Python 2.7.13
VM-0-13-suse:~ #
VM-0-13-suse:~ # ps -aux|grep python2
root 29414  0.1  0.7  37096  6632 pts/3S+   19:41   0:00 python2 fd2.py
root 29442  0.0  0.1  10540  1656 pts/5S+   19:41   0:00 grep 
--color=auto python2
VM-0-13-suse:~ #
VM-0-13-suse:~ # ps -aux|grep sleep
root 29415  0.0  0.1   5760  1256 pts/3S+   19:41   0:00 sleep 12345
root 29451  0.0  0.1  10540  1648 pts/5S+   19:41   0:00 grep 
--color=auto sleep
VM-0-13-suse:~ #
VM-0-13-suse:~ # ls -l /proc/29415/fd
total 0
lrwx-- 1 root root 64 Jan 21 19:41 0 -> /dev/null
lrwx-- 1 root root 64 Jan 21 19:41 1 -> /dev/pts/3
lrwx-- 1 root root 64 Jan 21 19:41 2 -> /dev/pts/3
VM-0-13-suse:~ #
VM-0-13-suse:~ # kill -9 29415 29414
VM-0-13-suse:~ #
VM-0-13-suse:~ # ps -aux|grep python2
root 29551  0.1  0.7  37096  6632 pts/3S+   19:42   0:00 python2 fd.py
root 29564  0.0  0.1  10540  1608 pts/5S+   19:42   0:00 grep 
--color=auto python2
VM-0-13-suse:~ # ps -aux|grep sleep
root 29552  0.0  0.1   5760  1260 pts/3S+   19:42   0:00 sleep 12345
root 29576  0.0  0.1  10540  1628 pts/5S+   19:42   0:00 grep 
--color=auto sleep
VM-0-13-suse:~ #
VM-0-13-suse:~ # ls -l /proc/29552/fd
total 0
lrwx-- 1 root root 64 Jan 21 19:42 0 -> /dev/null
lrwx-- 1 root root 64 Jan 21 19:42 1 -> /dev/pts/3
lrwx-- 1 root root 64 Jan 21 19:42 2 -> /dev/pts/3
lrwx-- 1 root root 64 Jan 21 19:42 3 -> /dev/null
VM-0-13-suse:~ #
```

in python3.4.6:
```
VM-0-13-suse:~ # python3 -V
Python 3.4.6
VM-0-13-suse:~ # ps -aux|grep python3
root 29086  0.1  0.9  33628  8136 pts/3S+   19:39   0:00 python3 fd2.py
root 29143  0.0  0.1  10540  1616 pts/5S+   19:39   0:00 grep 
--color=auto python3
VM-0-13-suse:~ #
VM-0-13-suse:~ # ps -aux|grep sleep
root 29087  0.0  0.1   5760  1284 pts/3S+   19:39   0:00 sleep 12345
root 29164  0.0  0.1  10540  1620 pts/5S+   19:39   0:00 grep 
--color=auto sleep
VM-0-13-suse:~ #
VM-0-13-suse:~ # ls -l /proc/29087/fd
total 0
lrwx-- 1 root root 64 Jan 21 19:39 1 -> /dev/pts/3
lrwx-- 1 root root 64 Jan 21 19:39 2 -> /dev/pts/3
VM-0-13-suse:~ #
VM-0-13-suse:~ # kill -9 29087 29086
VM-0-13-suse:~ #
VM-0-13-suse:~ # ps -aux|grep python3
root 29257  0.3  0.9  33628  8076 pts/3S+   19:40   0:00 python3 fd.py
root 29270  0.0  0.1  10540  1620 pts/5S+   19:40   0:00 grep 
--color=auto python3
VM-0-13-suse:~ #
VM-0-13-suse:~ # ps -aux|grep sleep
root 29258  0.0  0.1   5760  1264 pts/3S+   19:40   0:00 sleep 12345
root 29281  0.0  0.1  10540  1628 pts/5S+   19:40   0:00 grep 
--color=auto sleep
VM-0-13-suse:~ #
VM-0-13-suse:~ # ls -l /proc/29258/fd
total 0
lrwx-- 1 root root 64 Jan 21 19:40 0 -> /dev/null
lrwx-- 1 root root 64 Jan 21 19:40 1 -> /dev/pts/3
lrwx-- 1 root root 64 Jan 21 19:40 2 -> /dev/pts/3
```

in python3.10.0:
```
bash-5.1# python3 -V
Python 3.10.0
bash-5.1#
bash-5.1# ps -aux|grep python3
root 28688  0.0  0.9  11664  8732 ?S+   11:36   0:00 python3 fd2.py
root 28725  0.0  0.2   6408  2216 ?S+   11:36   0:00 grep python3
bash-5.1#
bash-5.1# ps -aux|grep sleep
root 28694  0.0  0.1   5524   908 ?S+   11:36   0:00 sleep 12345
root 28729  0.0  0.2   6408  2276 ?S+   11:36   0:00 grep sleep
bash-5.1#
bash-5.1# ls -l /proc/28694/fd
total 0
lrwx-- 1 root root 64 Jan 21 11:36 1 -> /dev/pts/3
lrwx-- 1 root root 64 Jan 21 11:36 2 -> /dev/pts/3
bash-5.1#
bash-5.1#
bash-5.1# kill -9 28694 28688
bash-5.1#
bash-5.1# ps -aux|grep python3
root 28846  0.5  0.9  11680  8428 ?S+   11:37   0:00 python3 fd.py
root 28854  0.0  0.2   6408  2064 ?S+   11:37   0:00 grep python3
bash-5.1#
bash-5.1# ps -aux|grep sleep
root 28847  0.0  0.0   5524   872 ?S+   11:37   0:00 sleep 12345
root 28863  0.0  0.2   6408  2220 ?S+   11:37   0:00 grep sleep
bash-5.1#
bash-5.1# ls -l /proc/28847/fd
total 0
lrwx-- 1 root root 64 Jan 21 11:37 0 -> /dev/null
lrwx-- 1 root root 64 Jan 21 11:37 1 -> /dev/pts/3
lrwx-- 1 root root 64 Jan 21 11:37 2 -> /dev/pts/3
bash-5.1#
```

When we execute the script fd2.py in the python 3 environment, we can find that 
 '0 -> /dev/null' is lost. I wonder if this is a bug in Python3 or a new 
feature? If it is a bug, how to fix it? I will look forward to your reply very 
much.

--
components: Library (Lib)
messages: 43
nosy: shihai1991, sxt1001, vstinner
priority: normal
severity: normal
status: open
title: '0 -> /dev/null' is lost
type: behavior
versions: Python 3.10

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[issue42197] Disable automatic update of frame locals during tracing

[Mark Shannon]

Mark Shannon  added the comment:

Or you can use this branch:
https://github.com/faster-cpython/cpython/tree/dont-fast-to-locals-in-trampoline

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[issue46399] Addition of `mapping` attribute to dict views classes has inadvertently broken type-checkers

[Alex Waygood]

Alex Waygood  added the comment:

I have also been persuaded that my suggested solution is not the way to go. 
Thanks everybody for the useful discussion.

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[issue46454] '0 -> /dev/null' is lost

[tongxiaoge]

Change by tongxiaoge :


Added file: https://bugs.python.org/file50570/fd.py

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[issue46454] '0 -> /dev/null' is lost

[tongxiaoge]

Change by tongxiaoge :


Added file: https://bugs.python.org/file50571/fd2.py

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[issue46454] '0 -> /dev/null' is lost

[tongxiaoge]

Change by tongxiaoge :


Added file: https://bugs.python.org/file50572/python2.7.13-out.png

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[issue46417] Clear static types in Py_Finalize() for embedded Python

[STINNER Victor]

STINNER Victor  added the comment:


New changeset ea38e436fe1e585fb8c1f0badf5482f525b7f9ff by Victor Stinner in 
branch 'main':
bpo-46417: Call _PyDebug_PrintTotalRefs() later (GH-30744)
https://github.com/python/cpython/commit/ea38e436fe1e585fb8c1f0badf5482f525b7f9ff


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[issue46454] '0 -> /dev/null' is lost

[tongxiaoge]

Change by tongxiaoge :


Added file: https://bugs.python.org/file50573/python3.10.0-out.png

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[issue46454] '0 -> /dev/null' is lost

[tongxiaoge]

Change by tongxiaoge :


Added file: https://bugs.python.org/file50574/python3.4.6-out.png

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[issue1635741] Py_Finalize() doesn't clear all Python objects at exit

[STINNER Victor]

STINNER Victor  added the comment:

Using "./python -IsS" command, sys.modules now only has 3 extensions which are 
not created by PyModuleDef_Init():

* builtins
* _io
* sys

The builtins and sys extensions use many static types. Converting these static 
types to heap types is blocked by bpo-40601. Soon, bpo-46417 will clear these 
types. Py_Finalize() does its best to clear explicitly builtins and sys 
namespaces.

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[issue46417] Clear static types in Py_Finalize() for embedded Python

[STINNER Victor]

STINNER Victor  added the comment:


New changeset 595225e86dcc6ea520a584839925a878dce7a9b2 by Victor Stinner in 
branch 'main':
bpo-46417: Py_Finalize() clears static types (GH-30743)
https://github.com/python/cpython/commit/595225e86dcc6ea520a584839925a878dce7a9b2


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[issue46071] Graphlib documentation (edge direction)

[David Mc Dougall]

David Mc Dougall  added the comment:

I can post literally hundreds of examples of directed graphs that are 
traversable in the forward direction. This might be the only one which is 
*only* traversable backwards.


> As to the meaning of "point to"

Here is one: If I have a pointer in memory, I might represent that with an 
arrow,
Like: ADDRESS -> VALUE

Or if I have a dictionary I might write:
KEY -> VALUE

But in the graph the edges are directed the opposite way:
KEY <- VALUE

The edges in the graph point in the opposite direction as the underlying memory 
pointers. This is unexpected and confusing.

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[issue37776] [subinterpreters] Test Py_Finalize() from a subinterpreter

[STINNER Victor]

STINNER Victor  added the comment:

I mark this issue as a duplicate of bpo-38865.

--
resolution:  -> duplicate
stage: patch review -> resolved
status: open -> closed
superseder:  -> [subinterpreters] Can Py_Finalize() be called if the current 
interpreter is not the main interpreter?

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[issue38865] [subinterpreters] Can Py_Finalize() be called if the current interpreter is not the main interpreter?

[STINNER Victor]

STINNER Victor  added the comment:

I marked bpo-37776 "[subinterpreters] Test Py_Finalize() from a subinterpreter" 
as a duplicate of this issue.

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[issue29858] inspect.signature includes bound argument for wrappers around decorated bound methods

[Irit Katriel]

Change by Irit Katriel :


--
versions: +Python 3.10, Python 3.11, Python 3.9 -Python 3.7, Python 3.8

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[issue46417] Clear static types in Py_Finalize() for embedded Python

[STINNER Victor]

STINNER Victor  added the comment:

> bpo-46417: Py_Finalize() clears static types (GH-30743)

Oh, test_unittest crashed on s390x Debian 3.x:
https://buildbot.python.org/all/#/builders/49/builds/1789

I fail to see the relationship between my change and this crash. I don't expect 
test_unittest to call Py_Finalize() and then Py_Initialize() again.

---
0:01:32 load avg: 4.77 [152/432/1] test_unittest crashed (Exit code -11) -- 
running: test_peg_generator (48.3 sec)
Fatal Python error: Segmentation fault

Current thread 0x03ff89cf8720 (most recent call first):
  File 
"/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/inspect.py", line 
2179 in _signature_fromstr
  File 
"/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/inspect.py", line 
2273 in _signature_from_builtin
  File 
"/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/inspect.py", line 
2461 in _signature_from_callable
  File 
"/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/inspect.py", line 
2465 in _signature_from_callable
  File 
"/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/inspect.py", line 
2966 in from_callable
  File 
"/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/inspect.py", line 
3218 in signature
  File 
"/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/unittest/mock.py", 
line 112 in _get_signature_object
  File 
"/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/unittest/mock.py", 
line 505 in _mock_add_spec
  File 
"/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/unittest/mock.py", 
line 487 in mock_add_spec
  File 
"/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/unittest/test/testmock/testmock.py",
 line 1767 in test_mock_add_spec
  File 
"/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/unittest/case.py", 
line 547 in _callTestMethod
  (...)
  File 
"/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/test/regrtest.py", 
line 47 in 
  File "", line 88 in _run_code
  File "", line 198 in _run_module_as_main

Extension modules: _testcapi (total: 1)
---

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[issue46455] Deprecate / remove os.name=java

[Xavier Morel]

New submission from Xavier Morel :

os.name is defined as:

> The following names have currently been registered: 'posix', 'nt', 'java'.

In my understanding, the value `'java'` is for the benefit of jython, which is 
rather poorly. Other third-party implementations which may or may not have a 
"full os module" (e.g. ironpython) do not -- as far as I can tell -- get to be 
registered against this value, and Python 3.3's addition of 
`sys.implementation` seems like a more reliable (and better supported) way to 
perform implementation-specific checks.

Therefore I feel `os.name == 'java'` only exists to confuse readers of the 
documentation, but doesn't really provide any value, and should be removed.

--
components: Library (Lib)
messages: 411123
nosy: xmorel
priority: normal
severity: normal
status: open
title: Deprecate / remove os.name=java
versions: Python 3.10, Python 3.11, Python 3.7, Python 3.8, Python 3.9

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[issue40757] tarfile: ignore_zeros = True won't raise exception even on invalid (non-zero) TARs

[Irit Katriel]

Irit Katriel  added the comment:

I am unable to reproduce this on 3.11:

>>> import tarfile

>>> tarfile.open( "foo.txt" )
Traceback (most recent call last):
  File "", line 1, in 
  File "/Users/iritkatriel/src/cpython-1/Lib/tarfile.py", line 1613, in open
return func(name, "r", fileobj, **kwargs)
   ^^
  File "/Users/iritkatriel/src/cpython-1/Lib/tarfile.py", line 1679, in gzopen
fileobj = GzipFile(name, mode + "b", compresslevel, fileobj)
  ^^
  File "/Users/iritkatriel/src/cpython-1/Lib/gzip.py", line 174, in __init__
fileobj = self.myfileobj = builtins.open(filename, mode or 'rb')
   ^
FileNotFoundError: [Errno 2] No such file or directory: 'foo.txt'



>>> tarfile.open( "foo.txt", ignore_zeros = True )
Traceback (most recent call last):
  File "", line 1, in 
  File "/Users/iritkatriel/src/cpython-1/Lib/tarfile.py", line 1613, in open
return func(name, "r", fileobj, **kwargs)
   ^^
  File "/Users/iritkatriel/src/cpython-1/Lib/tarfile.py", line 1679, in gzopen
fileobj = GzipFile(name, mode + "b", compresslevel, fileobj)
  ^^
  File "/Users/iritkatriel/src/cpython-1/Lib/gzip.py", line 174, in __init__
fileobj = self.myfileobj = builtins.open(filename, mode or 'rb')
   ^
FileNotFoundError: [Errno 2] No such file or directory: 'foo.txt'
>>>

--
nosy: +iritkatriel
resolution:  -> out of date
status: open -> pending

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[issue46455] Deprecate / remove os.name=java

[Xavier Morel]

Xavier Morel  added the comment:

PS: "platform.system()" also documents `Java` as a value which doesn't seem to 
make that much sense, however it's an open set so probably less of an issue / 
source of confusion.

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[issue40729] Update the list of auto-generated files in .gitattributes

[Batuhan Taskaya]

New submission from Batuhan Taskaya :

Superseeded by https://github.com/python/core-workflow/issues/425

--
resolution:  -> later
stage: patch review -> resolved
status: open -> closed

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[issue46425] Multiple test modules fail to run if invoked directly

[Nikita Sobolev]

Change by Nikita Sobolev :


--
pull_requests: +28933
pull_request: https://github.com/python/cpython/pull/30746

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[issue10202] ftplib doesn't check close status after sending file

[mike mcleod]

Change by mike mcleod :


--
keywords: +patch
pull_requests: +28934
stage: needs patch -> patch review
pull_request: https://github.com/python/cpython/pull/30747

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[issue46038] Mark /configure file as generated in .gitattributes

[Oleg Iarygin]

Change by Oleg Iarygin :


--
pull_requests: +28935
pull_request: https://github.com/python/cpython/pull/30745

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[issue46417] Clear static types in Py_Finalize() for embedded Python

[STINNER Victor]

STINNER Victor  added the comment:

Maybe the problem is that I changed the order in which types are initialized in 
_PyTypes_InitTypes()?

So far, test_unittest crashed on 4 buildbot workers:

* s390x Debian 3.x: ./configure --prefix '$(PWD)/target' --with-pydebug
  https://buildbot.python.org/all/#/builders/49/builds/1789

* aarch64 Fedora Stable 3.x: ../configure --prefix '$(PWD)/target' 
--with-pydebug --with-platlibdir=lib64 --enable-ipv6 --enable-shared 
--with-computed-gotos=yes --with-dbmliborder=gdbm:ndbm:bdb 
--enable-loadable-sqlite-extensions --with-ssl-default-suites=openssl 
--without-static-libpython --with-lto
  https://buildbot.python.org/all/#/builders/125/builds/1263

* aarch64 RHEL8 3.x: ../configure --prefix '$(PWD)/target' --with-pydebug 
--with-platlibdir=lib64 --enable-ipv6 --enable-shared --with-computed-gotos=yes 
--with-dbmliborder=gdbm:ndbm:bdb --enable-loadable-sqlite-extensions 
--with-ssl-default-suites=openssl --without-static-libpython --with-lto
  https://buildbot.python.org/all/#/builders/529/builds/1357

* PPC64LE RHEL8 3.x: ../configure --prefix '$(PWD)/target' --with-pydebug 
--with-platlibdir=lib64 --enable-ipv6 --enable-shared --with-computed-gotos=yes 
--with-dbmliborder=gdbm:ndbm:bdb --enable-loadable-sqlite-extensions 
--with-ssl-default-suites=openssl --without-static-libpython --with-lto
  https://buildbot.python.org/all/#/builders/559/builds/1196

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[issue46038] Mark /configure file as generated in .gitattributes

[Oleg Iarygin]

Oleg Iarygin  added the comment:

Superseded by . The PR 
itself is included as a part of PR30745.

--
resolution:  -> fixed
stage: patch review -> resolved
status: open -> closed

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[issue46417] Clear static types in Py_Finalize() for embedded Python

[STINNER Victor]

Change by STINNER Victor :


--
pull_requests: +28936
pull_request: https://github.com/python/cpython/pull/30749

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[issue46212] Avoid temporary `varargs` tuple creation in argument passing

[Batuhan Taskaya]

Batuhan Taskaya  added the comment:

> Note that _PyArg_UnpackKeywordsWithVararg is defined with PyAPI_FUNC. 
> Changing its argument spec is strictly a backwards incompatible change, IIUC.

AFAIK we have committed _PyArg_UnpackKeywordsWithVararg on 3.11 alpha, so I 
think it should be fine. Also CC: @pablogsal

--
nosy: +pablogsal

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[issue45877] Inconsistency in minimal supported version of Microsoft Visual Studio

[Oleg Iarygin]

Change by Oleg Iarygin :


--
resolution:  -> not a bug
stage:  -> resolved
status: open -> closed

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[issue46212] Avoid temporary `varargs` tuple creation in argument passing

[Erlend E. Aasland]

Erlend E. Aasland  added the comment:

> AFAIK we have committed _PyArg_UnpackKeywordsWithVararg on 3.11 alpha, so I 
> think it should be fine.

I see, so no ABI worries then.

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[issue46417] Clear static types in Py_Finalize() for embedded Python

[STINNER Victor]

Change by STINNER Victor :


--
pull_requests: +28937
pull_request: https://github.com/python/cpython/pull/30750

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[issue46427] Correct MSBuild's configuration for _freeze_module.exe

[Steve Dower]

Steve Dower  added the comment:

Windows ARM64 devices all support x86 and x64 emulation, so while it's less 
than ideal performance-wise to use a non-native build for this step, it's 
hardly fatal. That step doesn't rely on the underlying architecture, just the 
current Python bytecode format (which is platform independent).

Leaving the Platform blank is not acceptable. It needs to be set to the 
preferred tool architecture, which as it happens, is 
$(PreferredToolArchitecture).

As I said, if you've hit a *real* issue around this, please describe it. There 
is no theoretical issue here, and as far as I'm aware, no practical issues 
either.

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[issue46450] namedtuple leaks data between instances when field's default value is empty list

[maximus733]

maximus733 <3ed7qja...@liamekaens.com> added the comment:

Thanks for the clarification.

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[issue46452] Possible false detection of Windows LZMA library as a malware by Avast

[Steve Dower]

Steve Dower  added the comment:

I don't think we've changed anything here in years, so I'd be very 
surprised if something new was in there.

More likely somebody PyInstaller'd some malware and the scanners picked 
up a generic part of it as the signature. Reporting it as a false 
positive should let them compare against the original sample and correct it.

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[issue46456] Add mime type "image/avif"

[jiahua wang]

New submission from jiahua wang :

https://www.iana.org/assignments/media-types/image/avif

--
components: Library (Lib)
messages: 411134
nosy: wangjiahua
priority: normal
severity: normal
status: open
title: Add mime type "image/avif"
versions: Python 3.11

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[issue46452] Possible false detection of Windows LZMA library as a malware by Avast

[Nathan/Eilisha Shiraini]

Nathan/Eilisha Shiraini  added the comment:

Thanks for the quick response. It seems Avast was just as quick, I updated my 
AV's databases a few minutes ago and now it doesn't repost the files as 
malware. Same for the VirusTotal scans.

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[issue46457] test_unittest: TestAsyncCase.test_debug_cleanup_same_loop() hangs with gc.set_threshold(500)

[STINNER Victor]

New submission from STINNER Victor :

The following command hangs:

./python -u -m test -v test_unittest -m test_debug_cleanup_same_loop -v 
2>/dev/null

if the following patch is applied on Python:

diff --git a/Lib/unittest/test/test_async_case.py 
b/Lib/unittest/test/test_async_case.py
index 3717486b265..c6759a13494 100644
--- a/Lib/unittest/test/test_async_case.py
+++ b/Lib/unittest/test/test_async_case.py
@@ -2,6 +2,7 @@
 import unittest
 from test import support
 
+import gc; gc.set_threshold(500)
 
 class MyException(Exception):
 pass

--
components: Tests, asyncio
messages: 411136
nosy: asvetlov, vstinner, yselivanov
priority: normal
severity: normal
status: open
title: test_unittest: TestAsyncCase.test_debug_cleanup_same_loop() hangs with 
gc.set_threshold(500)
versions: Python 3.11

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[issue46458] Optimise try-except code generation for the happy path

[Irit Katriel]

New submission from Irit Katriel :

The compiler emits code for try-except-else-finally in the order in which it 
appears in the source, but it could probably produce faster code if it 
optimizes for the no-exception path.

--
assignee: iritkatriel
components: Interpreter Core
messages: 411137
nosy: iritkatriel
priority: normal
severity: normal
status: open
title: Optimise try-except code generation for the happy path
type: performance
versions: Python 3.11

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[issue46454] '0 -> /dev/null' is lost

[Jelle Zijlstra]

Jelle Zijlstra  added the comment:

This sounds like a consequence of PEP 446.

--
nosy: +Jelle Zijlstra

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[issue46417] Clear static types in Py_Finalize() for embedded Python

[STINNER Victor]

STINNER Victor  added the comment:


New changeset fda88864980ffce57add0ea03fb9cbda2798975e by Victor Stinner in 
branch 'main':
bpo-46417: Revert remove_subclass() change (GH-30750)
https://github.com/python/cpython/commit/fda88864980ffce57add0ea03fb9cbda2798975e


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[issue46458] Optimise try-except code generation for the happy path

[Irit Katriel]

Change by Irit Katriel :


--
keywords: +patch
pull_requests: +28938
stage:  -> patch review
pull_request: https://github.com/python/cpython/pull/30751

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[issue46459] Installing python to external drive (USB) using python installer failure

[oMqngo]

New submission from oMqngo :

When trying to install python to a external drive, such as a USB drive, using 
the python installer (while having python installed on the local PC), the 
installer continues to the "download finished" window without installing 
anything to the USB drive.

--
components: Windows
messages: 411140
nosy: oMqngo, paul.moore, steve.dower, tim.golden, zach.ware
priority: normal
severity: normal
status: open
title: Installing python to external drive (USB) using python installer failure
type: behavior
versions: Python 3.10

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[issue46458] Optimise try-except code generation for the happy path

[Irit Katriel]

Irit Katriel  added the comment:

See also the discussion on https://github.com/faster-cpython/ideas/issues/226.

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[issue46459] Installing python to external drive (USB) using python installer failure

[Steve Dower]

Steve Dower  added the comment:

The installer doesn't support installing twice on the same machine, even to 
different locations.

What you probably want to do is to install it normally, then copy all the files 
onto the USB. You will need to "python -m pip install --force pip" in the new 
copy to fix up its scripts, and it may interfere with a system install if you 
use it on a machine that also has its own installation (though that's mostly 
been cleaned up since ~3.5), but should otherwise be fine.

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[issue46417] Clear static types in Py_Finalize() for embedded Python

[STINNER Victor]

STINNER Victor  added the comment:

> bpo-46417: Revert remove_subclass() change (GH-30750)

Ok, this change fixed buildbots.

I saw code in typeobject.c which uses a borrowed reference to tp_subclasses 
with a loop which can modify tp_subclasses. This code should be modified to 
hold a strong reference to tp_subclasses while accessing it.

The test_mock_add_spec() test of test_unittest modifies the subclasses of many 
types and so is indirectly a stress tests for code accessing tp_subclasses. 
That's why the regression was only seen in this specific test.

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[issue46454] '0 -> /dev/null' is lost

[STINNER Victor]

STINNER Victor  added the comment:

That's not a bug, but a deliberate choice. In Python 3, file descriptors are no 
longer inherited by default by child processes (fork+exec). Jelle is right, it 
was changed by my PEP 446.

You must use pass_fds=[fd] parameter of subprocess.

Or at least, make the file descriptor inheritable (worse solution).

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stage:  -> resolved
status: open -> closed

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[issue42197] Disable automatic update of frame locals during tracing

[STINNER Victor]

STINNER Victor  added the comment:

As I already wrote previously, I'm a supporter of requiring debuggers and 
profilers to explicitly call PyFrame_FastToLocalsWithError() and 
PyFrame_LocalsToFast(). It should only impact a minority of users, whereas the 
majority will benefit of way better performance, no?

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[issue46442] testExceptionCleanupNames doesn't test anything?

[Yellow Dusk]

Yellow Dusk  added the comment:

Great point, it's indeed a good thing to test. So I guess the test is just 
incomplete.

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[issue46460] Doc/library/dis.rst lists `versionchange` twice for `WITH_EXCEPT_START`

[Nikita Sobolev]

New submission from Nikita Sobolev :

Right now it has two sections:

```
.. versionchanged:: 3.11
   The ``__exit__`` function is in position 8 of the stack rather than 7.

```

And

```
.. versionchanged:: 3.11
   The ``__exit__`` function is in position 4 of the stack rather than 7.
   Exception representation on the stack now consist of one, not three, 
items.
```

Furthermore, they seem to contradict each other.
I think that we should only keep the last one.

I will send a PR for it.

--
assignee: docs@python
components: Documentation
messages: 411147
nosy: docs@python, sobolevn
priority: normal
severity: normal
status: open
title: Doc/library/dis.rst lists `versionchange` twice for `WITH_EXCEPT_START`
type: behavior
versions: Python 3.11

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[issue46460] Doc/library/dis.rst lists `versionchange` twice for `WITH_EXCEPT_START`

[Nikita Sobolev]

Change by Nikita Sobolev :


--
keywords: +patch
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stage:  -> patch review
pull_request: https://github.com/python/cpython/pull/30752

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[issue46417] Clear static types in Py_Finalize() for embedded Python

[STINNER Victor]

STINNER Victor  added the comment:


New changeset a1bf329bca80a0259da454c936075e11e6af710f by Victor Stinner in 
branch 'main':
bpo-46417: Add missing types of _PyTypes_InitTypes() (GH-30749)
https://github.com/python/cpython/commit/a1bf329bca80a0259da454c936075e11e6af710f


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[issue46442] testExceptionCleanupNames doesn't test anything?

[Yellow Dusk]

Change by Yellow Dusk :


--
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pull_requests: +28940
stage:  -> patch review
pull_request: https://github.com/python/cpython/pull/30753

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[issue46434] pdb help fails with AttributeError when using Windows embeddable package

[miss-islington]

Change by miss-islington :


--
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nosy_count: 5.0 -> 6.0
pull_requests: +28941
pull_request: https://github.com/python/cpython/pull/30754

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[issue46434] pdb help fails with AttributeError when using Windows embeddable package

[Steve Dower]

Steve Dower  added the comment:


New changeset 60705cff70576482fea31dcafbf8a37cbb751ea5 by Tom Sparrow in branch 
'main':
bpo-46434: Handle missing docstrings in pdb help (GH-30705)
https://github.com/python/cpython/commit/60705cff70576482fea31dcafbf8a37cbb751ea5


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[issue46434] pdb help fails with AttributeError when using Windows embeddable package

[miss-islington]

Change by miss-islington :


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[issue31817] Compilation Error with Python 3.6.1/3.6.3 with Tkinter

[Irit Katriel]

Irit Katriel  added the comment:

3.6 is no longer maintained. Is this a problem on current versions or can be 
close this?

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status: open -> pending

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[issue40120] Undefined C behavior going beyond end of struct via a [1] arrays.

[Antoine Pitrou]

Antoine Pitrou  added the comment:

How about:

#ifdef __cplusplus
char array[1];
#else
char array[];
#endif

?

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[issue46449] Deep-freezed modules create inconsistency in sys.gettotalrefcount() (_Py_Reftotal)

[Guido van Rossum]

Guido van Rossum  added the comment:

I was hoping @eric.snow could tell me.

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[issue32976] linux/random.h present but cannot be compiled

[Irit Katriel]

Irit Katriel  added the comment:

Thanks for reporting this. Since 3.6 is no longer maintained it's unlikely that 
this will be investigated. Please create a new issue if you are seeing this 
with a current version of Python (>= 3.9).

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resolution:  -> out of date
stage:  -> resolved
status: open -> closed

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[issue41906] logging.config.dictConfig does not work with callable filters

[Mario Corchero]

Change by Mario Corchero :


--
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pull_request: https://github.com/python/cpython/pull/30756

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[issue33994] python build egg fails with error while compiling test cases

[Irit Katriel]

Irit Katriel  added the comment:

3.6 is no longer maintained. Please create a new issue if you are seeing this 
on a current version (>= 3.9).

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stage:  -> resolved
status: open -> closed

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[issue33286] Conflict between tqdm and multiprocessing on windows

[Irit Katriel]

Irit Katriel  added the comment:

The tqdm_multi.py works for me on 3.11 on windows.

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stage:  -> resolved
status: open -> closed

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[issue46426] Improve tests for the dir_fd argument

[Serhiy Storchaka]

Change by Serhiy Storchaka :


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[issue46426] Improve tests for the dir_fd argument

[Serhiy Storchaka]

Serhiy Storchaka  added the comment:


New changeset a1015c6478e8cbec2ecb984a3cba733783d168b5 by Miss Islington (bot) 
in branch '3.10':
bpo-46426: Improve tests for the dir_fd argument (GH-30668) (GH-30739)
https://github.com/python/cpython/commit/a1015c6478e8cbec2ecb984a3cba733783d168b5


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[issue29541] Python3 error while building on Alt-F

[Irit Katriel]

Irit Katriel  added the comment:

3.6 is no longer maintained, please create a new issue if you are seeing this 
problem on a current version (>= 3.9).

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resolution:  -> out of date
stage:  -> resolved
status: open -> closed

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[issue10434] Document the rules for "public names"

[mike mcleod]

mike mcleod  added the comment:

I would like to help on this issue. Is there anyone available to push a PR 
through? If I make the changes.

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[issue46434] pdb help fails with AttributeError when using Windows embeddable package

[miss-islington]

miss-islington  added the comment:


New changeset c3ad850b57f92bd7c5515616b59afbd9e1c79538 by Miss Islington (bot) 
in branch '3.9':
bpo-46434: Handle missing docstrings in pdb help (GH-30705)
https://github.com/python/cpython/commit/c3ad850b57f92bd7c5515616b59afbd9e1c79538


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[issue46442] testExceptionCleanupNames doesn't test anything?

[Yellow Dusk]

Change by Yellow Dusk :


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pull_request: https://github.com/python/cpython/pull/30758

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[issue1521051] Allow passing DocTestRunner and DocTestCase in doctest

[mike mcleod]

mike mcleod  added the comment:

I would like to help on this issue.

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[issue46071] Graphlib documentation (edge direction)

[Tim Peters]

Tim Peters  added the comment:

Now you may be getting somewhere ;-) Complaining about the docs wasn't getting 
traction because they're using standard terminology with the standard meanings, 
and tell the plain truth about what the class requires and delivers.

You wish it required something else instead. Fine: be direct about that! 
Suggest a feature enhancement rather than contorting the docs to pretend the 
class "really" requires what you _wish_ it required and is computing "the 
reverse" of what it claims to be computing. That won't be accepted  because 
it's not true.

How about, e.g., suggesting instead a new optional constructor argument, like 
`successor_graph=False`, which can be passed as `True` to say that the `graph` 
argument is a successor dict rather than the default predecessor dict?

I wouldn't oppose that, and it would be easy to implement (indeed, way back 
when here I already posted code to do it).

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[issue39952] Using VS2019 to automatically build Python3 and it failed to build

[Irit Katriel]

Irit Katriel  added the comment:

3.6 is no longer maintained. Can we close this now, or is this a problem on 
newer versions as well?

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status: open -> pending

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[issue39952] Using VS2019 to automatically build Python3 and it failed to build

[Steve Dower]

Steve Dower  added the comment:

I think we can close it.

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