[issue34468] An always-false condition in range_repr() from Objects/rangeobject.c

[miss-islington]

miss-islington  added the comment:


New changeset 902f1618388280eeeb3957b273f0ccb3df938723 by Miss Islington (bot) 
in branch '3.6':
closes bpo-34468: Objects/rangeobject.c: Fix an always-false condition in 
range_repr() (GH-8880)
https://github.com/python/cpython/commit/902f1618388280eeeb3957b273f0ccb3df938723


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[issue34468] An always-false condition in range_repr() from Objects/rangeobject.c

[miss-islington]

miss-islington  added the comment:


New changeset d9e1abf8d36da19f074f16046c4a9b5fe54cc083 by Miss Islington (bot) 
in branch '3.7':
closes bpo-34468: Objects/rangeobject.c: Fix an always-false condition in 
range_repr() (GH-8880)
https://github.com/python/cpython/commit/d9e1abf8d36da19f074f16046c4a9b5fe54cc083


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[issue18560] builtin_sum() doesn't check return value of PyLong_FromLong()

[Benjamin Peterson]

Benjamin Peterson  added the comment:

Backported to 2.7 in 67dafd5c202cd529e209bf3f35e022ce766709eb. (I messed up the 
commit message.)

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[issue34474] Python/bltinmodule.c: Missing NULL check in builtin_sum_impl()

[miss-islington]

miss-islington  added the comment:


New changeset 45ee452751d095d665717bafb61cfd7c65b729b4 by Miss Islington (bot) 
in branch '2.7':
closes bpo-34474: Python/bltinmodule.c: Add missing NULL check in 
builtin_sum_impl() (GH-8872)
https://github.com/python/cpython/commit/45ee452751d095d665717bafb61cfd7c65b729b4


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[issue34474] Python/bltinmodule.c: Missing NULL check in builtin_sum_impl()

[miss-islington]

miss-islington  added the comment:


New changeset 7d470f3f24d0c091cf1da4f13695c6bb3200a713 by Miss Islington (bot) 
in branch '3.6':
closes bpo-34474: Python/bltinmodule.c: Add missing NULL check in 
builtin_sum_impl() (GH-8872)
https://github.com/python/cpython/commit/7d470f3f24d0c091cf1da4f13695c6bb3200a713


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[issue34474] Python/bltinmodule.c: Missing NULL check in builtin_sum_impl()

[miss-islington]

miss-islington  added the comment:


New changeset a59036365b304d43bba0f050fa9a7d76100e0ae1 by Miss Islington (bot) 
in branch '3.7':
closes bpo-34474: Python/bltinmodule.c: Add missing NULL check in 
builtin_sum_impl() (GH-8872)
https://github.com/python/cpython/commit/a59036365b304d43bba0f050fa9a7d76100e0ae1


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[issue31861] add aiter() and anext() functions to operator module

[Joshua Bronson]

Joshua Bronson  added the comment:

Updating the issue title to reflect the decision to add these to the operator 
module rather than to built-ins.

Submitted a PR here: https://github.com/python/cpython/pull/8895

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title: aiter() and anext() built-in functions -> add aiter() and anext() 
functions to operator module

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[issue31861] aiter() and anext() built-in functions

[Joshua Bronson]

Change by Joshua Bronson :


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[issue34477] Objects/typeobject.c: Missing NULL check in type_init()

[miss-islington]

miss-islington  added the comment:


New changeset ea21206626d0907e0ecfd3efbb186f14f1a8a5d4 by Miss Islington (bot) 
in branch '2.7':
closes bpo-34477: Objects/typeobject.c: Add missing NULL check to type_init() 
(GH-8876)
https://github.com/python/cpython/commit/ea21206626d0907e0ecfd3efbb186f14f1a8a5d4


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[issue34477] Objects/typeobject.c: Missing NULL check in type_init()

[miss-islington]

miss-islington  added the comment:


New changeset fbe359a5e0b22e96065d24d033bebf27cdb374be by Miss Islington (bot) 
in branch '3.6':
closes bpo-34477: Objects/typeobject.c: Add missing NULL check to type_init() 
(GH-8876)
https://github.com/python/cpython/commit/fbe359a5e0b22e96065d24d033bebf27cdb374be


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[issue34468] An always-false condition in range_repr() from Objects/rangeobject.c

[miss-islington]

Change by miss-islington :


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[issue34468] An always-false condition in range_repr() from Objects/rangeobject.c

[Benjamin Peterson]

Benjamin Peterson  added the comment:


New changeset 7ecae3ca0bda3cacf3b0125bae0bc718a17cc071 by Benjamin Peterson 
(Alexey Izbyshev) in branch 'master':
closes bpo-34468: Objects/rangeobject.c: Fix an always-false condition in 
range_repr() (GH-8880)
https://github.com/python/cpython/commit/7ecae3ca0bda3cacf3b0125bae0bc718a17cc071


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[issue34468] An always-false condition in range_repr() from Objects/rangeobject.c

[miss-islington]

Change by miss-islington :


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[issue34477] Objects/typeobject.c: Missing NULL check in type_init()

[miss-islington]

miss-islington  added the comment:


New changeset 609062a23f018f4ffc180a88435d61f871165518 by Miss Islington (bot) 
in branch '3.7':
closes bpo-34477: Objects/typeobject.c: Add missing NULL check to type_init() 
(GH-8876)
https://github.com/python/cpython/commit/609062a23f018f4ffc180a88435d61f871165518


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[issue18560] builtin_sum() doesn't check return value of PyLong_FromLong()

[Benjamin Peterson]

Change by Benjamin Peterson :


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[issue34474] Python/bltinmodule.c: Missing NULL check in builtin_sum_impl()

[miss-islington]

Change by miss-islington :


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[issue34474] Python/bltinmodule.c: Missing NULL check in builtin_sum_impl()

[miss-islington]

Change by miss-islington :


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[issue34474] Python/bltinmodule.c: Missing NULL check in builtin_sum_impl()

[Benjamin Peterson]

Benjamin Peterson  added the comment:


New changeset 2b824b2538c4a5f9f520c5de8a1eae5a0c181a94 by Benjamin Peterson 
(Alexey Izbyshev) in branch 'master':
closes bpo-34474: Python/bltinmodule.c: Add missing NULL check in 
builtin_sum_impl() (GH-8872)
https://github.com/python/cpython/commit/2b824b2538c4a5f9f520c5de8a1eae5a0c181a94


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[issue34474] Python/bltinmodule.c: Missing NULL check in builtin_sum_impl()

[miss-islington]

Change by miss-islington :


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[issue34477] Objects/typeobject.c: Missing NULL check in type_init()

[miss-islington]

Change by miss-islington :


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[issue34477] Objects/typeobject.c: Missing NULL check in type_init()

[miss-islington]

Change by miss-islington :


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[issue34477] Objects/typeobject.c: Missing NULL check in type_init()

[Benjamin Peterson]

Benjamin Peterson  added the comment:


New changeset f6247aac08c1a79d0479145a405718bb76dba434 by Benjamin Peterson 
(Alexey Izbyshev) in branch 'master':
closes bpo-34477: Objects/typeobject.c: Add missing NULL check to type_init() 
(GH-8876)
https://github.com/python/cpython/commit/f6247aac08c1a79d0479145a405718bb76dba434


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[issue34477] Objects/typeobject.c: Missing NULL check in type_init()

[miss-islington]

Change by miss-islington :


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[issue34465] ipaddress should accept bytearray in addition to bytes

[Prudvi RajKumar Maddala]

Prudvi RajKumar Maddala  added the comment:

I think it should be supported too. How about a list of bytes? eg : 
[127,0,0,1].. Should that be supported as well?

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[issue34483] eval() raises NameError: name '...' is not defined

[Steven D'Aprano]

Change by Steven D'Aprano :


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[issue34483] eval() raises NameError: name '...' is not defined

[Eric V. Smith]

Eric V. Smith  added the comment:

I believe you're seeing this: 
https://docs.python.org/3/reference/executionmodel.html#naming-and-binding

See the paragraph that starts with "Class definition blocks and arguments to 
exec() and eval() are special in the context of name resolution", and the 
example that follows it.

Basically, you're running eval() as if it were at class scope. I think (but am 
not positive) that this statement, from the exec() documentation, also applies 
to eval(): "Remember that at module level, globals and locals are the same 
dictionary. If exec gets two separate objects as globals and locals, the code 
will be executed as if it were embedded in a class definition."

If so, then eval()'s docs should reference this, too.

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[issue26467] Add async magic method support to unittest.mock.Mock

[Julian Mehnle]

Change by Julian Mehnle :


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[issue28069] signalmodule.c does "is" comparisons for SIG_IGN and SIG_DFL

[Berker Peksag]

Change by Berker Peksag :


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[issue28206] signal.Signals not documented

[Berker Peksag]

Change by Berker Peksag :


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type:  -> enhancement
versions: +Python 3.7, Python 3.8 -Python 3.5

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[issue34485] _PyCoreConfig: add stdio_encoding and stdio_errors

[STINNER Victor]

Change by STINNER Victor :


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[issue34485] _PyCoreConfig: add stdio_encoding and stdio_errors

[STINNER Victor]

New submission from STINNER Victor :

Currently, the code to select the encoding and error handler of sys.stdin, 
sys.stdout and sys.stderr is run later in Py_Initialize(). I propose to move 
most of this code into _PyCoreConfig_Read() and add stdio_encoding and 
stdio_errors to _PyCoreConfig to easily let Python embedders to select the 
encoding.

Attached PR implements this idea. During Py_Initialize(), the code still reads 
the LC_CTYPE locale to choose the error handler if stdio_errors is NULL. This 
check cannot be done earlier, since the LC_CTYPE locale is only set to the user 
locale in Py_Initialize(): after _PyCoreConfig_Read().

The Py_SetStandardStreamEncoding() function has been added by Nick Coghlan in 
bpo-16129.

This new pre-initialization API allows embedding
applications like Blender to force a particular
encoding and error handler for the standard IO streams.

--
messages: 323980
nosy: vstinner
priority: normal
severity: normal
status: open
title: _PyCoreConfig: add stdio_encoding and stdio_errors
versions: Python 3.8

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[issue34468] An always-false condition in range_repr() from Objects/rangeobject.c

[Alexey Izbyshev]

Alexey Izbyshev  added the comment:

Thank you, Brett, I've submitted a PR.

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[issue34468] An always-false condition in range_repr() from Objects/rangeobject.c

[Alexey Izbyshev]

Change by Alexey Izbyshev :


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[issue34484] Unicode HOWTO incorrectly refers to Private Use Area for surrogateescape

[Mark Dickinson]

Mark Dickinson  added the comment:

Whoops. Sorry, that should be #4153.

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[issue34484] Unicode HOWTO incorrectly refers to Private Use Area for surrogateescape

[Mark Dickinson]

Mark Dickinson  added the comment:

For history, this text was introduced as a result of issue #4163.

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[issue34484] Unicode HOWTO incorrectly refers to Private Use Area for surrogateescape

[Mark Dickinson]

New submission from Mark Dickinson :

The Unicode HOWTO currently has contains this text in the "Files in an Unknown 
Encoding" section [1]:

> The surrogateescape error handler will decode any non-ASCII bytes as code
> points in the Unicode Private Use Area ranging from U+DC80 to U+DCFF. These
> private code points will then be turned back into the same bytes when the
> surrogateescape error handler is used when encoding the data and writing it
> back out.

Unless I'm missing something, the subrange U+DC80 to U+DCFF of the low 
surrogates is *not* a Private Use Area. There *is* a kinda-sorta PUA in the 
high surrogates from U+DB80 to U+DBFF (because the only valid codepoints that 
use these surrogates in their UTF-16 encoding are the codepoints in planes 15 
and 16, which are almost entirely PUA codepoints), but that's not what the 
surrogateescape handler is using.


[1] https://docs.python.org/3/howto/unicode.html#files-in-an-unknown-encoding

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messages: 323976
nosy: docs@python, mark.dickinson
priority: normal
severity: normal
status: open
title: Unicode HOWTO incorrectly refers to Private Use Area for surrogateescape
versions: Python 3.6, Python 3.7

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[issue30717] Add unicode grapheme cluster break algorithm

[Paul Ganssle]

Change by Paul Ganssle :


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[issue27195] Crash when RawIOBase.write(b) evaluates b.format

[Stefan Krah]

Stefan Krah  added the comment:

PyBUF_RECORDS pulls in PyBUF_STRIDES, which should IMO not be done in a stable 
release.

Maybe (PyBUF_CONTIG_RO|PyBUF_FORMAT), but I'm uneasy even about that. The 
potential for breakage is huge.

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[issue26901] Argument Clinic test is broken

[STINNER Victor]

Change by STINNER Victor :


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[issue27195] Crash when RawIOBase.write(b) evaluates b.format

[Zackery Spytz]

Zackery Spytz  added the comment:

Ping.

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[issue33187] Document ElementInclude (XInclude) support in ElementTree

[Stefan Behnel]

Change by Stefan Behnel :


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[issue34468] An always-false condition in range_repr() from Objects/rangeobject.c

[Brett Cannon]

Brett Cannon  added the comment:

I think your second proposal sounds about right, Alexey.

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[issue34473] pip is unusable on Windows 10 1803 - SHA-1 certificates are untrusted

[Matt Tuttle]

Matt Tuttle  added the comment:

Yep. You are right it is a firewall issue.

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[issue34481] Different behavior of C and Python impls of datetime.strftime with non-UTF-8-encodable strings

[Paul Ganssle]

Change by Paul Ganssle :


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[issue34423] Overflow when casting from double to time_t, and_PyTime_t.

[Paul Ganssle]

Change by Paul Ganssle :


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[issue32876] HTMLParser raises exception on some inputs

[Berker Peksag]

Berker Peksag  added the comment:

Issue 34480 is another relevant issue. The HTMLParse method doesn't have an 
error() method and it doesn't raise any exceptions, but its base class still 
does. I think there is a compatibility problem between html.parser.HTMLParser() 
and _markupbase.ParserBase() classes. See https://bugs.python.org/msg323966 for 
more details about this.

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[issue34473] pip is unusable on Windows 10 1803 - SHA-1 certificates are untrusted

[Matt Tuttle]

Matt Tuttle  added the comment:

Thanks Steve, you were right it is a firewall issue that impacted both pip and 
conda simultaneously. ☹

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[issue34473] pip is unusable on Windows 10 1803 - SHA-1 certificates are untrusted

[Matt Tuttle]

Matt Tuttle  added the comment:

It was a firewall issue that affected pip and conda in the same way.

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[issue31844] HTMLParser: undocumented not implemented method

[Berker Peksag]

Change by Berker Peksag :


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[issue31844] HTMLParser: undocumented not implemented method

[Berker Peksag]

Berker Peksag  added the comment:

After triaging issue 34480, I realized that we can't simply remove the error() 
method because the _markupbase.ParserBase() class still uses it. I've just 
closed PR 8562.

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[issue34480] _markupbase.py fails with UnboundLocalError on invalid keyword in marked section

[Berker Peksag]

Change by Berker Peksag :


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[issue34480] _markupbase.py fails with UnboundLocalError on invalid keyword in marked section

[Berker Peksag]

Change by Berker Peksag :


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[issue34480] _markupbase.py fails with UnboundLocalError on invalid keyword in marked section

[Berker Peksag]

Berker Peksag  added the comment:

Thanks for the report.

HTMLParser.error() was supposed to raise an exception, but the BeautifulSoup 
project just prints a warning here:

def error(self, msg):
warnings.warn(msg)

https://bazaar.launchpad.net/~leonardr/beautifulsoup/bs4/view/head:/bs4/builder/_htmlparser.py#L69

As a result of this, the code doesn't stop executing in the following branch:

else:
self.error('unknown status keyword %r in marked section' % 
rawdata[i+3:j])
if not match:
return -1

https://github.com/python/cpython/blob/3.7/Lib/_markupbase.py#L159

Note that HTMLParser.error() was removed in Python 3.5 
(https://github.com/python/cpython/commit/73a4359eb0eb624c588c5d52083ea4944f9787ea#diff-1a7486df8279dbac7f20abd487947845L171)
 and there is an open issue about the status of _markupbase.ParserBase.error(): 
Issue 31844.

I also think that 
https://github.com/python/cpython/commit/73a4359eb0eb624c588c5d52083ea4944f9787ea#diff-1a7486df8279dbac7f20abd487947845L171
 may have caused a minor regression when it was removed the error() method and 
its uses from the HTMLParser class. It still calls the parse_marked_section() 
method of _markupbase.ParserBase() which it then calls the error() method of 
_markupbase.ParserBase():

elif rawdata[i:i+3] == 'https://github.com/python/cpython/blob/3.7/Lib/html/parser.py#L264

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[issue34482] datetime: Tests for potential crashes due to non-UTF-8-encodable strings

[Alexey Izbyshev]

Change by Alexey Izbyshev :


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[issue34482] datetime: Tests for potential crashes due to non-UTF-8-encodable strings

[Alexey Izbyshev]

Change by Alexey Izbyshev :


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[issue34454] datetime: NULL dereference in fromisoformat() on PyUnicode_AsUTF8AndSize() failure

[Alexey Izbyshev]

Change by Alexey Izbyshev :


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[issue34483] eval() raises NameError: name '...' is not defined

[Alex]

New submission from Alex :

Builtin eval() function raises NameError on a valid expression:


--- example of bug on Python 3.4
Python 3.4.5 (default, May 29 2017, 15:17:55)
[GCC 4.8.5 20150623 (Red Hat 4.8.5-11)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> x = [1,2,3]
>>> [x for i in x]
[[1, 2, 3], [1, 2, 3], [1, 2, 3]]
>>> eval('[x for i in x]', {}, dict(x=x))
Traceback (most recent call last):
  File "", line 1, in 
  File "", line 1, in 
  File "", line 1, in 
NameError: name 'x' is not defined


--- example on Python 2.7 (no bug)
Python 2.7.5 (default, May  3 2017, 07:55:04)
[GCC 4.8.5 20150623 (Red Hat 4.8.5-14)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> x = [1,2,3]
>>> [x for i in x]
[[1, 2, 3], [1, 2, 3], [1, 2, 3]]
>>> eval('[x for i in x]', {}, dict(x=x))
[[1, 2, 3], [1, 2, 3], [1, 2, 3]]


---

Bug reproduced on:
- Windows 7: Python 3.4, 3.7
- Red Hat Enterprise Linux Server: Python 3.4

Works without errors on:
- Windows 7: Python 2.7
- Red Hat Enterprise Linux Server: Python 2.7

--
components: Interpreter Core
messages: 323965
nosy: alexb
priority: normal
severity: normal
status: open
title: eval() raises NameError: name '...' is not defined
versions: Python 3.4, Python 3.7

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[issue34481] Different behavior of C and Python impls of datetime.strftime with non-UTF-8-encodable strings

[Alexey Izbyshev]

New submission from Alexey Izbyshev :

The C datetime implementation uses PyUnicode_AsUTF8AndSize() in wrap_strftime() 
and rejects strings containing surrogate code points (0xD800 - 0xDFFF) since 
they can't be encoded in UTF-8. On the other hand, the pure-Python datetime 
implementation doesn't have this restriction:

>>> import sys
>>> sys.modules['_datetime'] = None # block C implementation
>>> from datetime import time
>>> time().strftime('\ud800')
'\ud800'
>>> del sys.modules['datetime']
>>> del sys.modules['_datetime']
>>> from datetime import time
>>> time().strftime('\ud800')
Traceback (most recent call last):
  File "", line 1, in 
UnicodeEncodeError: 'utf-8' codec can't encode character '\ud800' in position 
0: surrogates not allowed

--
components: Extension Modules
messages: 323963
nosy: belopolsky, izbyshev, pitrou, serhiy.storchaka, taleinat
priority: normal
severity: normal
status: open
title: Different behavior of C and Python impls of datetime.strftime with 
non-UTF-8-encodable strings
type: behavior
versions: Python 3.6, Python 3.7, Python 3.8

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[issue34482] datetime: Tests for potential crashes due to non-UTF-8-encodable strings

[Alexey Izbyshev]

New submission from Alexey Izbyshev :

This is a follow-up of #34454. 'datetime' extension module attempts to encode 
input strings into UTF-8 in several places, which requires special care because 
some valid Python strings can't be represented in UTF-8. It makes sense to add 
more tests for methods dealing with strings.

Note that my PR doesn't attempt to deal with #34481. In cases where behavior 
differs between C and Python datetime impls the tests check only for  absence 
of crashes.

--
components: Extension Modules
messages: 323964
nosy: belopolsky, izbyshev, p-ganssle, serhiy.storchaka, taleinat
priority: normal
severity: normal
status: open
title: datetime: Tests for potential crashes due to non-UTF-8-encodable strings
type: security
versions: Python 3.6, Python 3.7, Python 3.8

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[issue34480] _markupbase.py fails with UnboundLocalError on invalid keyword in marked section

[Conrad]

New submission from Conrad :

$ pip freeze | grep beautifulsoup4
beautifulsoup4==4.6.3

$ python
Python 3.7.0 (default, Jul 23 2018, 20:24:19)
[Clang 9.0.0 (clang-900.0.39.2)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> from bs4 import BeautifulSoup
>>> text = ""
>>> BeautifulSoup(text, 'html.parser')
/Users/conradroche/solvvy/ml-pipeline/venv/lib/python3.7/site-packages/bs4/builder/_htmlparser.py:78:
 UserWarning: unknown status keyword 'hi ' in marked section
  warnings.warn(msg)
Traceback (most recent call last):
  File "", line 1, in 
  File 
"/Users/conradroche/solvvy/ml-pipeline/venv/lib/python3.7/site-packages/bs4/__init__.py",
 line 282, in __init__
self._feed()
  File 
"/Users/conradroche/solvvy/ml-pipeline/venv/lib/python3.7/site-packages/bs4/__init__.py",
 line 343, in _feed
self.builder.feed(self.markup)
  File 
"/Users/conradroche/solvvy/ml-pipeline/venv/lib/python3.7/site-packages/bs4/builder/_htmlparser.py",
 line 247, in feed
parser.feed(markup)
  File 
"/usr/local/Cellar/python/3.7.0/Frameworks/Python.framework/Versions/3.7/lib/python3.7/html/parser.py",
 line 111, in feed
self.goahead(0)
  File 
"/usr/local/Cellar/python/3.7.0/Frameworks/Python.framework/Versions/3.7/lib/python3.7/html/parser.py",
 line 179, in goahead
k = self.parse_html_declaration(i)
  File 
"/usr/local/Cellar/python/3.7.0/Frameworks/Python.framework/Versions/3.7/lib/python3.7/html/parser.py",
 line 264, in parse_html_declaration
return self.parse_marked_section(i)
  File 
"/usr/local/Cellar/python/3.7.0/Frameworks/Python.framework/Versions/3.7/lib/python3.7/_markupbase.py",
 line 160, in parse_marked_section
if not match:
UnboundLocalError: local variable 'match' referenced before assignment
>>>

--
components: Library (Lib)
messages: 323962
nosy: kodial
priority: normal
severity: normal
status: open
title: _markupbase.py fails with UnboundLocalError on invalid keyword in marked 
section
type: behavior
versions: Python 3.7

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[issue34347] AIX: test_utf8_mode.test_cmd_line fails

[Michael Felt]

Michael Felt  added the comment:

On 23/08/2018 12:51, STINNER Victor wrote:
> STINNER Victor  added the comment:
>
> Your issue is about decoding command line argument which is done from main() 
> function. It doesn't use Python codecs, but functions like Py_DecodeLocale().
This is beyond my understanding atm.
Early on I tried making the expected just be 'arg' and went from
situation A to situation B - which looked much closer, BUT, the 'types'
differed:

Situaltion A (original)
AssertionError: "['h\\xc3\\xa9\\xe2\\x82\\xac']" != 
"['h\\udcc3\\udca9\\udce2\\udc82\\udcac']"
- ['h\xc3\xa9\xe2\x82\xac']
+ ['h\udcc3\udca9\udce2\udc82\udcac']
 : ISO8859-1:['h\xc3\xa9\xe2\x82\xac']

I tried saying the "expected" is arg, but arg is still a byte object, the 
cmd_line result is not (printed as such).

Situation B
AssertionError: "['h\\xc3\\xa9\\xe2\\x82\\xac']" != 
"[b'h\\xc3\\xa9\\xe2\\x82\\xac']"
- ['h\xc3\xa9\xe2\x82\xac']
+ [b'h\xc3\xa9\xe2\x82\xac']
?  +
 : ISO8859-1:['h\xc3\xa9\xe2\x82\xac']

After further digging - to understand why it was coming as "\x encoding rather 
than \udc"

I looked at what was happening here:

out = self.get_output('-X', utf8_opt, '-c', code, arg, **kw)
becomes
out = self.get_output('-X', utf8_opt, '-c', code, 
'h\xe9\u20ac'.encode('utf-8'), **kw)
becomes
out = self.get_output('-X', utf8_opt, '-c', code, b'h\xc3\xa9\xe2\x82\xac', 
**kw)

And finally, at the CLI becomes:
['/data/prj/python/python3-3.8/python', '-X', 'faulthandler', '-X', 'utf8', 
'-c', 'import locale, sys; print("%s:%s" % (locale.getpreferredencoding(), 
ascii(sys.argv[1:])))', b'h\xc3\xa9\xe2\x82\xac']

/data/prj/python/python3-3.8/python '-X' 'faulthandler' '-X' 'utf8' '-c' 
'import locale, sys; print("%s:%s" % (locale.getpreferredencoding(), 
ascii(sys.ar
gv[1:])))', b'h\xc3\xa9\xe2\x82\xac'
UTF-8:['bh\\xc3\\xa9\\xe2\\x82\\xac']

/data/prj/python/python3-3.8/python '-X' 'faulthandler' '-X' 'utf8=0' '-c' 
'import locale, sys; print("%s:%s" % (locale.getpreferredencoding(), ascii(sys.
argv[1:])))', b'h\xc3\xa9\xe2\x82\xac'
ISO8859-1:['bh\\xc3\\xa9\\xe2\\x82\\xac']

Note:
/data/prj/python/python3-3.8/python '-X' 'faulthandler' '-X' 'utf8=0' '-c' 
'import locale, sys; print("%s:%s" % (locale.getpreferredencoding(), ascii(sys.
argv[1:])))', 'h\udcc3\udca9\udce2\udc82\udcac'
ISO8859-1:['h\\udcc3\\udca9\\udce2\\udc82\\udcac']

/data/prj/python/python3-3.8/python '-X' 'faulthandler' '-X' 'utf8=0' '-c' 
'import locale, sys; print("%s:%s" % (locale.getpreferredencoding(), ascii(sys.
argv[1:])))', b'h\udcc3\udca9\udce2\udc82\udcac'
ISO8859-1:['bh\\udcc3\\udca9\\udce2\\udc82\\udcac']

root@x066:[/data/prj/python/python3-3.8]/data/prj/python/python3-3.8/python 
'-X' 'faulthandler' '-X' 'utf8' '-c' 'import locale, sys; print("%s:%s" % (>
UTF-8:['bh\\udcc3\\udca9\\udce2\\udc82\\udcac']

Summary:
a) concerned about how b'h' becomes 'bh'
b) whatwever argv[1] is, is very close to what is returned - so whatever 
happens durinf the transformation from 
self.get_output('-X', utf8_opt, '-c', code, arg, **kw)
 determines the output and the (failed) comparison.

>> Question 1: why is windows excluded? Because it does not use UTF-8 as it's 
>> default (it's default is CP1252)
> Windows uses wmain() which gets command line arguments as wchar_t* strings: 
> Unicode. No decoding is needed.
>
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[issue34454] datetime: NULL dereference in fromisoformat() on PyUnicode_AsUTF8AndSize() failure

[Tal Einat]

Tal Einat  added the comment:

Thanks for the report and initial patch, Alexey!

Thanks for the followup and final PR, Paul!

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

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[issue34423] Overflow when casting from double to time_t, and_PyTime_t.

[Michał Radwański]

Michał Radwański  added the comment:

Although you're right - this issue is specific to pytime.c, when 
_Py_InIntegralTypeRange() is used with a double, it is actually true that 
_Py_InIntegralTypeRange() is used with double, in pytime.c only (as a quick 
recursive grep discovers).

Perhaps the macro should be renamed not to cause confusion (include note about 
floating point, or define it as a function).

I don't have good idea on how this issue could be resolved otherwise.

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[issue34454] datetime: NULL dereference in fromisoformat() on PyUnicode_AsUTF8AndSize() failure

[miss-islington]

miss-islington  added the comment:


New changeset 89b1654e0bc7bc69709dca86dd4c92eb7122ac7e by Miss Islington (bot) 
in branch '3.7':
bpo-34454: fix .fromisoformat() methods crashing on inputs with surrogate code 
points (GH-8862)
https://github.com/python/cpython/commit/89b1654e0bc7bc69709dca86dd4c92eb7122ac7e


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[issue34473] pip is unusable on Windows 10 1803 - SHA-1 certificates are untrusted

[Steve Dower]

Steve Dower  added the comment:

Can you be more precise about which versions are affected and any other system 
configuration you have (firewalls, network security software, enterprise 
configs, etc.)?

I have been using pip quite happily on 1803, so it's certainly not widespread 
enough to justify this vague a report.

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[issue34479] ArgumentParser subparser error display at the wrong level

[Siming Yuan]

New submission from Siming Yuan :

If you take the example from
https://docs.python.org/3/library/argparse.html#argparse.ArgumentParser.add_subparsers

# create the top-level parser
parser = argparse.ArgumentParser(prog='PROG')
parser.add_argument('--foo', action='store_true', help='foo help')
subparsers = parser.add_subparsers(help='sub-command help')
# create the parser for the "a" command
parser_a = subparsers.add_parser('a', help='a help')
parser_a.add_argument('-bar', type=int, help='bar help')
# create the parser for the "b" command
parser_b = subparsers.add_parser('b', help='b help')
parser_b.add_argument('--baz', choices='XYZ', help='baz help')


and run a subcommand but with an argument the subcommand doesn't understand

parser.parse_args(['a', '-x'])

the output doesn't help much - because the usage is coming from the main parser

usage: PROG [-h] [--foo] {a,b} ...
PROG: error: unrecognized arguments: -x


the reason for failure is because the error api being called in this case is
parser.error(msg)

not the subparser
parser_a.error(msg)

the proper error should've been

usage: PROG a [-h] [-bar BAR]
PROG a: error: unrecognized arguments: -x

--
components: Library (Lib)
messages: 323956
nosy: siming85
priority: normal
severity: normal
status: open
title: ArgumentParser subparser error display at the wrong level
type: behavior
versions: Python 3.4, Python 3.5, Python 3.6

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[issue34478] Possibly misleading/wrong documentation about PyModuleDef.m_free

[Segev Finer]

New submission from Segev Finer :

This section in the documentation 
https://docs.python.org/3.7/howto/cporting.html#module-initialization-and-state 
shows how to implement an extension module that works for both Python 2 and 3. 
It also shows how to use m_size to manage module state instead of using static 
globals. But it omits implementing m_free. This is also done in 
https://www.python.org/dev/peps/pep-3121/#example

To my understanding, m_clear is *only* called by the Python GC when the object 
is a part of a reference cycle. It won't be called for a normal free when the 
object wasn't a part of a reference cycle. This means that for such a case the 
objects referenced in the state structure will leak!

Looking around the standard library, it seems the extension modules there point 
m_free to calling the function used to implement m_clear.

The documentation of the structure is also quite unclear on the subject 
https://docs.python.org/3/c-api/module.html?highlight=pymoduledef#c.PyModuleDef.

P.S. There is also no freeing/DECREF-ing stuff in the state on error in the 
Python 2 case, but I think even the standard library is like this.

--
assignee: docs@python
components: Documentation
messages: 323955
nosy: Segev Finer, docs@python
priority: normal
severity: normal
status: open
title: Possibly misleading/wrong documentation about PyModuleDef.m_free
type: enhancement
versions: Python 3.7, Python 3.8

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[issue34454] datetime: NULL dereference in fromisoformat() on PyUnicode_AsUTF8AndSize() failure

[Tal Einat]

Tal Einat  added the comment:


New changeset 096329f0b2bf5e3f0a16363aa631d993ce078737 by Tal Einat (Paul 
Ganssle) in branch 'master':
bpo-34454: fix .fromisoformat() methods crashing on inputs with surrogate code 
points (GH-8862)
https://github.com/python/cpython/commit/096329f0b2bf5e3f0a16363aa631d993ce078737


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[issue34454] datetime: NULL dereference in fromisoformat() on PyUnicode_AsUTF8AndSize() failure

[miss-islington]

Change by miss-islington :


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[issue11192] test_socket error on AIX

[Michael Felt]

Michael Felt  added the comment:

I nearly have a patch - to resolve all the remaining test_socket() issues with 
AIX. However, this (new?) issue remains:

f = lambda a: inet_pton(AF_INET6, a)
assertInvalid = lambda a: self.assertRaises(
(OSError, ValueError), f, a
)

>>> f('1:2:3:4:5:6:7:8')
b'\x00\x01\x00\x02\x00\x03\x00\x04\x00\x05\x00\x06\x00\x07\x00\x08'
>>> f('1:2:3:4:5:6:7:8:')
b'\x00\x01\x00\x02\x00\x03\x00\x04\x00\x05\x00\x06\x00\x07\x00\x08'
>>> f('1::')
b'\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
>>> f('1:2:3:4:5:6:7:8::')
Traceback (most recent call last):
  File "", line 1, in 
  File "", line 1, in 
OSError: illegal IP address string passed to inet_pton

>>> f('1:2:3:4:5:6:7')
Traceback (most recent call last):
  File "", line 1, in 
  File "", line 1, in 
OSError: illegal IP address string passed to inet_pton


Is, maybe, the last test meant to be '::' on the end, rather than ':'?

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[issue34448] incomplete/missing message from configure.ac for usable wchar_t

[Berker Peksag]

Berker Peksag  added the comment:

The message is a bit more descriptive if wchar_t isn't usable:

> checking whether wchar_t is signed... yes
> no usable wchar_t found

I'm not sure if it's worth to backport to 3.6, but it's a nice improvement for 
3.7 and master branches. Also, it simplifies the checking for wchar_t a bit, 
which is good.

--
nosy: +berker.peksag
versions:  -Python 3.6

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[issue34477] Objects/typeobject.c: Missing NULL check in type_init()

[Alexey Izbyshev]

Change by Alexey Izbyshev :


--
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pull_requests: +8351
stage:  -> patch review

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[issue34477] Objects/typeobject.c: Missing NULL check in type_init()

[Alexey Izbyshev]

New submission from Alexey Izbyshev :

The return value of PyTuple_GetSlice() at 
https://github.com/python/cpython/blob/48ce4897f8f8d91d948ecd1241ffab002df2be9e/Objects/typeobject.c#L2297
 is not checked for NULL and then dereferenced.

Reported by Svace static analyzer.

Currently, PyTuple_GetSlice() for a zero-length slice can fail only if it's the 
first zero-length tuple ever created. If there is an invariant that at least 
one zero-length tuple exists on any type_init() call, the check may be replaced 
with an assert.

--
components: Interpreter Core
messages: 323951
nosy: berker.peksag, izbyshev, pitrou, serhiy.storchaka
priority: normal
severity: normal
status: open
title: Objects/typeobject.c: Missing NULL check in type_init()
type: behavior
versions: Python 2.7, Python 3.6, Python 3.7, Python 3.8

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[issue34476] asyncio.sleep(0) not documented

[Hrvoje Nikšić]

Hrvoje Nikšić  added the comment:

Also, the "Create a coroutine ..." wording in the current documentation is a 
bit strange - sleep() is already marked as a coroutine, and documentation of 
other coroutines simply state their effect in imperative.

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[issue34476] asyncio.sleep(0) not documented

[Hrvoje Nikšić]

New submission from Hrvoje Nikšić :

Looking at the implementation and at the old issue at 
https://github.com/python/asyncio/issues/284 shows that asyncio.sleep 
special-cases asyncio.sleep(0) to mean "yield control to the event loop" 
without incurring additional overhead of sleeping. However, this is not 
documented at https://docs.python.org/3/library/asyncio-task.html#asyncio.sleep 
.

I propose to add to the documentation a statement along the lines of:

"""
A delay of 0 will relinquish control to the event loop, allowing other tasks 
and callbacks to run. The control will be returned to the coroutine as soon as 
they have run, without an explicit delay.
"""

--
assignee: docs@python
components: Documentation, asyncio
messages: 323949
nosy: asvetlov, docs@python, hniksic, yselivanov
priority: normal
severity: normal
status: open
title: asyncio.sleep(0) not documented
versions: Python 3.7

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[issue34474] Python/bltinmodule.c: Missing NULL check in builtin_sum_impl()

[Berker Peksag]

Berker Peksag  added the comment:

Personally I wouldn't bother fixing 2.7, but let's see what other core devs 
think.

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[issue34475] functools.partial objects have no __qualname__ attribute

[Chris Jerdonek]

New submission from Chris Jerdonek :

functools.partial objects have no __qualname__ attribute. This means, for 
example, that code expecting a callable that logs the __qualname__ attribute 
can break when passed a functools.partial object.

Example:

>>> import functools
>>> int.__qualname__
'int'
>>> p = functools.partial(int)
>>> p.__qualname__
Traceback (most recent call last):
  File "", line 1, in 
AttributeError: 'functools.partial' object has no attribute '__qualname__'

--
components: Library (Lib)
messages: 323947
nosy: chris.jerdonek
priority: normal
severity: normal
status: open
title: functools.partial objects have no __qualname__ attribute
type: enhancement
versions: Python 3.6

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[issue34474] Python/bltinmodule.c: Missing NULL check in builtin_sum_impl()

[Alexey Izbyshev]

Change by Alexey Izbyshev :


--
keywords: +patch
pull_requests: +8350
stage:  -> patch review

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[issue34474] Python/bltinmodule.c: Missing NULL check in builtin_sum_impl()

[Alexey Izbyshev]

New submission from Alexey Izbyshev :

The return value of PyFloat_FromDouble() at 
https://github.com/python/cpython/blob/48ce4897f8f8d91d948ecd1241ffab002df2be9e/Python/bltinmodule.c#L2403
 is not checked for NULL and then dereferenced.

Reported by Svace static analyzer.

A similar issue in an 'if' statement above was fixed in #18560. Note that 2.7 
is affected by both issues, so I can fix both if needed.

--
components: Interpreter Core
messages: 323946
nosy: berker.peksag, izbyshev, pitrou, serhiy.storchaka
priority: normal
severity: normal
status: open
title: Python/bltinmodule.c: Missing NULL check in builtin_sum_impl()
type: behavior
versions: Python 2.7, Python 3.6, Python 3.7, Python 3.8

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[issue34473] pip is unusable on Windows 10 1803 - SHA-1 certificates are untrusted

[Matt Tuttle]

New submission from Matt Tuttle :

Running pip install ANYTHING results in an SSL failure on Windows 10 1803 
because SHA-1 certificates are untrusted.

--
components: Installation, Windows
messages: 323945
nosy: mtuttle, paul.moore, steve.dower, tim.golden, zach.ware
priority: normal
severity: normal
status: open
title: pip is unusable on Windows 10 1803 - SHA-1 certificates are untrusted
type: behavior
versions: Python 2.7, Python 3.4, Python 3.5, Python 3.6, Python 3.7, Python 3.8

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[issue34412] strsignal(3) does not exist on HP-UX

[Berker Peksag]

Change by Berker Peksag :


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

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[issue34412] strsignal(3) does not exist on HP-UX

[Berker Peksag]

Berker Peksag  added the comment:


New changeset 48ce4897f8f8d91d948ecd1241ffab002df2be9e by Berker Peksag 
(Michael Osipov) in branch 'master':
bpo-34412: Make signal.strsignal() work on HP-UX (GH-8786)
https://github.com/python/cpython/commit/48ce4897f8f8d91d948ecd1241ffab002df2be9e


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nosy: +berker.peksag

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[issue34472] zipfile: does not include optional descriptor signature

[Silas Sewell]

Change by Silas Sewell :


--
keywords: +patch
pull_requests: +8348
stage:  -> patch review

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[issue34472] zipfile: does not include optional descriptor signature

[Silas Sewell]

New submission from Silas Sewell :

When adding a fileobj that is not seekable to a zip using the zipfile module, 
the optional signature value 0x08074b50 is not included. This breaks certain 
zip implementations, including the builtin MacOS Archive Utility.

See https://pkware.cachefly.net/webdocs/casestudies/APPNOTE.TXT sections 
4.3.9.3 and 4.3.9.4

--
components: Library (Lib)
files: zip_stream_example.py
messages: 323943
nosy: silas
priority: normal
severity: normal
status: open
title: zipfile: does not include optional descriptor signature
versions: Python 3.5, Python 3.6, Python 3.7, Python 3.8
Added file: https://bugs.python.org/file47760/zip_stream_example.py

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[issue34347] AIX: test_utf8_mode.test_cmd_line fails

[STINNER Victor]

STINNER Victor  added the comment:

Your issue is about decoding command line argument which is done from main() 
function. It doesn't use Python codecs, but functions like Py_DecodeLocale().

> Question 1: why is windows excluded? Because it does not use UTF-8 as it's 
> default (it's default is CP1252)

Windows uses wmain() which gets command line arguments as wchar_t* strings: 
Unicode. No decoding is needed.

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[issue34347] AIX: test_utf8_mode.test_cmd_line fails

[STINNER Victor]

STINNER Victor  added the comment:

I fixed bpo-34207.

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nosy: +vstinner

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[issue34170] Py_Initialize(): computing path configuration must not have side effect (PEP 432)

[STINNER Victor]

Change by STINNER Victor :


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

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[issue34207] test_cmd_line test_utf8_mode test_warnings fail in all FreeBSD 3.x (3.8) buildbots

[STINNER Victor]

STINNER Victor  added the comment:

The regression should now be fixed in 3.7 and master branches.

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[issue34207] test_cmd_line test_utf8_mode test_warnings fail in all FreeBSD 3.x (3.8) buildbots

[STINNER Victor]

STINNER Victor  added the comment:


New changeset 80a0ebaa8385988b1d2d71ed1f548fc32ad7 by Victor Stinner in 
branch '3.7':
bpo-34207: Fix pymain_read_conf() for UTF-8 Mode (GH-8868) (GH-8870)
https://github.com/python/cpython/commit/80a0ebaa8385988b1d2d71ed1f548fc32ad7


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[issue34170] Py_Initialize(): computing path configuration must not have side effect (PEP 432)

[STINNER Victor]

STINNER Victor  added the comment:


New changeset 80a0ebaa8385988b1d2d71ed1f548fc32ad7 by Victor Stinner in 
branch '3.7':
bpo-34207: Fix pymain_read_conf() for UTF-8 Mode (GH-8868) (GH-8870)
https://github.com/python/cpython/commit/80a0ebaa8385988b1d2d71ed1f548fc32ad7


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[issue34207] test_cmd_line test_utf8_mode test_warnings fail in all FreeBSD 3.x (3.8) buildbots

[STINNER Victor]

Change by STINNER Victor :


--
pull_requests: +8346

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[issue34170] Py_Initialize(): computing path configuration must not have side effect (PEP 432)

[STINNER Victor]

Change by STINNER Victor :


--
pull_requests: +8347

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[issue34207] test_cmd_line test_utf8_mode test_warnings fail in all FreeBSD 3.x (3.8) buildbots

[STINNER Victor]

STINNER Victor  added the comment:


New changeset 89487f51b8d6ba8a55f5de0ed689e46fefe73cc9 by Victor Stinner in 
branch 'master':
bpo-34207: Fix pymain_read_conf() for UTF-8 Mode (GH-8868)
https://github.com/python/cpython/commit/89487f51b8d6ba8a55f5de0ed689e46fefe73cc9


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[issue34170] Py_Initialize(): computing path configuration must not have side effect (PEP 432)

[STINNER Victor]

STINNER Victor  added the comment:


New changeset 89487f51b8d6ba8a55f5de0ed689e46fefe73cc9 by Victor Stinner in 
branch 'master':
bpo-34207: Fix pymain_read_conf() for UTF-8 Mode (GH-8868)
https://github.com/python/cpython/commit/89487f51b8d6ba8a55f5de0ed689e46fefe73cc9


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[issue34207] test_cmd_line test_utf8_mode test_warnings fail in all FreeBSD 3.x (3.8) buildbots

[STINNER Victor]

STINNER Victor  added the comment:

I wrote PR 8867 but it doesn't fix all cases, so I abandonned it.

Then I wrote PR 8868 which sets Py_UTF8Mode in pymain_read_conf() and should 
fix the issue.

The root issue is that we have C functions which depend on the global 
configuration variables like Py_UTF8Mode :-(

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[issue34471] _datetime: Missing NULL check in tzinfo_from_isoformat_results()

[Alexey Izbyshev]

Change by Alexey Izbyshev :


--
keywords: +patch
pull_requests: +8345
stage:  -> patch review

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[issue34471] _datetime: Missing NULL check in tzinfo_from_isoformat_results()

[Alexey Izbyshev]

New submission from Alexey Izbyshev :

The return value of new_delta() is not checked for NULL at 
https://github.com/python/cpython/blob/ccd99752675042bd5f67d332c5b0ed85ba1f2da3/Modules/_datetimemodule.c#L1292
 and then dereferenced.

Reported by Svace static analyzer.

--
components: Extension Modules
messages: 323934
nosy: belopolsky, izbyshev, p-ganssle, serhiy.storchaka
priority: normal
severity: normal
status: open
title: _datetime: Missing NULL check in tzinfo_from_isoformat_results()
type: behavior
versions: Python 3.7, Python 3.8

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[issue34466] socket.settimeout working incorrectly for connect() method of AF_UNIX socket

[Fedor Korotkiy]

Fedor Korotkiy  added the comment:

Hello Benjamin.

That would be appropriate workaround.

Maybe we should update docs to mention it?

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[issue34207] test_cmd_line test_utf8_mode test_warnings fail in all FreeBSD 3.x (3.8) buildbots

[STINNER Victor]

Change by STINNER Victor :


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pull_requests: +8343

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[issue34170] Py_Initialize(): computing path configuration must not have side effect (PEP 432)

[STINNER Victor]

Change by STINNER Victor :


--
pull_requests: +8344

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