[issue33064] lib2to3 fails on a trailing comma after **kwargs in a function signature

[Serhiy Storchaka]

Serhiy Storchaka  added the comment:

Does it support a trailing comma after *args or name=value?

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[issue33064] lib2to3 fails on a trailing comma after **kwargs in a function signature

[Serhiy Storchaka]

Serhiy Storchaka  added the comment:

I'm not sure that a trailing comma after **kwargs in a function signature 
should be allowed in Python grammar. Reasons for allowing it after other 
arguments don't work here since **kwargs is always a last item in a signature.

But this ship perhaps is sailed.

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[issue33064] lib2to3 fails on a trailing comma after **kwargs in a function signature

[Łukasz Langa]

Łukasz Langa  added the comment:


New changeset b51f5de71163f096d2d5229ede5379cdb284f651 by Łukasz Langa in 
branch 'master':
bpo-33064: lib2to3: support trailing comma after *args and **kwargs (#6096)
https://github.com/python/cpython/commit/b51f5de71163f096d2d5229ede5379cdb284f651


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[issue33064] lib2to3 fails on a trailing comma after **kwargs in a function signature

[miss-islington]

Change by miss-islington :


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[issue33064] lib2to3 fails on a trailing comma after **kwargs in a function signature

[miss-islington]

Change by miss-islington :


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[issue33064] lib2to3 fails on a trailing comma after **kwargs in a function signature

[Łukasz Langa]

Łukasz Langa  added the comment:

Yes, this ship has sailed with Python 3.6.

I understand your logic and this is indeed why we didn't support this for a 
long time. However, people tend to grow muscle memory to add trailing commas 
and that was tripping them over for no real gain on our part. So this was 
added. The reason I found out about lib2to3 not following suit was that 3.6 
users quickly started to put those trailing commas in and tools using lib2to3 
were crashing on such files :) This proves it was worth it.

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[issue33064] lib2to3 fails on a trailing comma after **kwargs in a function signature

[Łukasz Langa]

Łukasz Langa  added the comment:

Oh, and in terms of *calling* functions, now we can specify multiple unpacks, 
like:

  >>> f(
  ...   **d,
  ...   **e,
  ... )

so the extra comma for signatures simply makes it symmetrical in terms of 
appearance.

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[issue33062] ssl_renegotiate() doesn't seem to be exposed

[Christian Heimes]

Christian Heimes  added the comment:

Since it's a feature request, I have changed the version number to 3.8.

By the way, renegotiation is a problematic and has been replaced by rekeying in 
TLS 1.3.

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[issue33064] lib2to3 fails on a trailing comma after **kwargs in a function signature

[Łukasz Langa]

Łukasz Langa  added the comment:


New changeset b4c8871ca43d37be167ef5dbe9fb341922c04a9f by Łukasz Langa (Miss 
Islington (bot)) in branch '3.7':
bpo-33064: lib2to3: support trailing comma after *args and **kwargs (GH-6096) 
(#6097)
https://github.com/python/cpython/commit/b4c8871ca43d37be167ef5dbe9fb341922c04a9f


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[issue33064] lib2to3 fails on a trailing comma after **kwargs in a function signature

[Łukasz Langa]

Łukasz Langa  added the comment:


New changeset 6a526f673878677032c02f7800ee13d4769f391a by Łukasz Langa (Miss 
Islington (bot)) in branch '3.6':
bpo-33064: lib2to3: support trailing comma after *args and **kwargs (GH-6096) 
(#6098)
https://github.com/python/cpython/commit/6a526f673878677032c02f7800ee13d4769f391a


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[issue33023] Unable to copy ssl.SSLContext

[Christian Heimes]

Change by Christian Heimes :


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[issue17288] cannot jump from a 'return' or 'exception' trace event

[Serhiy Storchaka]

Serhiy Storchaka  added the comment:


New changeset e32bbaf376a09c149fa7c7f2919d7c9ce4e2a055 by Serhiy Storchaka 
(xdegaye) in branch '3.7':
[3.7] bpo-17288: Prevent jumps from 'return' and 'exception' trace events. 
(GH-5928)
https://github.com/python/cpython/commit/e32bbaf376a09c149fa7c7f2919d7c9ce4e2a055


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[issue17288] cannot jump from a 'return' or 'exception' trace event

[miss-islington]

Change by miss-islington :


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[issue33023] Unable to copy ssl.SSLContext

[Christian Heimes]

Christian Heimes  added the comment:

Antoine is correct. Session resumption is fully transparent for the application 
layer. The context object is designed to be reused by multiple connections to 
same or different servers.

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[issue33041] Issues with "async for"

[Serhiy Storchaka]

Change by Serhiy Storchaka :


--
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'exception' trace event

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[issue33025] urlencode produces bad output from ssl.CERT_NONE and friends that chokes decoders

[Christian Heimes]

Christian Heimes  added the comment:

Ethan, please take a look.

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[issue33064] lib2to3 fails on a trailing comma after **kwargs in a function signature

[Łukasz Langa]

Change by Łukasz Langa :


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[issue33056] LEaking files in concurrent.futures.process

[Antoine Pitrou]

Antoine Pitrou  added the comment:


New changeset f216cbf9ab704da98146a25d57ff0e85aecb49da by Antoine Pitrou (Miss 
Islington (bot)) in branch '3.7':
bpo-33056 FIX leaking fd in concurrent.futures.ProcessPoolExecutor (GH-6084) 
(#6092)
https://github.com/python/cpython/commit/f216cbf9ab704da98146a25d57ff0e85aecb49da


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[issue33056] LEaking files in concurrent.futures.process

[Antoine Pitrou]

Antoine Pitrou  added the comment:

Andrew: where there are multiprocessing issues, could you please nosy me so 
that I get a chance to review?

Thomas: thanks for spotting this and thanks for the fix!

--
resolution:  -> fixed
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status: open -> closed
versions: +Python 3.8

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[issue11594] 2to3 does not preserve line endings

[Łukasz Langa]

Change by Łukasz Langa :


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[issue8947] Provide as_integer_ratio() method to Decimal

[Mark Dickinson]

Change by Mark Dickinson :


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title: as_integer_ratio Decimal -> Provide as_integer_ratio() method to Decimal

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[issue8947] as_integer_ratio Decimal

[Mark Dickinson]

Change by Mark Dickinson :


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title: Provide  as_integer_ratio() method to Decimal -> as_integer_ratio Decimal

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[issue33066] raise an exception from multiple positions break the traceback frames

[hubo]

New submission from hubo :

The attachment is a script that demonstrates the behavior. The simple unittest 
script should exit very quickly, but in fact, it runs indefinitely.

It uses asyncio to reproduce the result, but other concurrent technologies are 
also affected.

In Python 3, traceback of an exception is mutable. When the exception is 
re-raised, current frames are appended to the traceback. But when the same 
exception object is raised in multiple position (e.g. passed to different 
coroutines with futures), the frames are appended in the same list, so the 
tracebacks are mixed together.

assertRaises in unittest calls traceback.clear_frames internally. When the 
tracebacks are mixed, it may clear a running frame (in a generator), producing 
strange behaviors.

--
files: test1.py
messages: 313735
nosy: hubo1016
priority: normal
severity: normal
status: open
title: raise an exception from multiple positions break the traceback frames
type: behavior
versions: Python 3.6
Added file: https://bugs.python.org/file47480/test1.py

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[issue30622] Fix NPN guard for OpenSSL 1.1

[Christian Heimes]

Change by Christian Heimes :


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[issue32885] Tools/scripts/pathfix.py leaves bunch of ~ suffixed files around with no opt-out

[Christian Heimes]

Christian Heimes  added the comment:


New changeset 5affd5c29eb1493cb31ef3cfdde15538ac134689 by Christian Heimes 
(Miro Hrončok) in branch 'master':
bpo-32885: Tools/scripts/pathfix.py: Add -n option for no backup~ (#5772)
https://github.com/python/cpython/commit/5affd5c29eb1493cb31ef3cfdde15538ac134689


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[issue32885] Tools/scripts/pathfix.py leaves bunch of ~ suffixed files around with no opt-out

[miss-islington]

Change by miss-islington :


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[issue32885] Tools/scripts/pathfix.py leaves bunch of ~ suffixed files around with no opt-out

[miss-islington]

Change by miss-islington :


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[issue17288] cannot jump from a 'return' or 'exception' trace event

[miss-islington]

miss-islington  added the comment:


New changeset cf61a81f1d600064be6dd43896afcf5f976de9b0 by Miss Islington (bot) 
in branch '3.6':
[3.7] bpo-17288: Prevent jumps from 'return' and 'exception' trace events. 
(GH-5928)
https://github.com/python/cpython/commit/cf61a81f1d600064be6dd43896afcf5f976de9b0


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[issue33056] LEaking files in concurrent.futures.process

[Andrew Svetlov]

Andrew Svetlov  added the comment:

Antoine sorry, will do next time

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nosy: +paul.moore, steve.dower, tim.golden, zach.ware

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[issue33062] ssl_renegotiate() doesn't seem to be exposed

[Vitaly Kruglikov]

Vitaly Kruglikov  added the comment:

> By the way, renegotiation is a problematic and has been replaced by rekeying 
> in TLS 1.3

How can I trigger rekeying via python ssl? Many thanks.

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[issue28716] Fractions instantiation revisited

[Mark Dickinson]

Mark Dickinson  added the comment:

[Eric Wieser]

> This would allow the numpy `np.floating` types to take part in `Fraction` 
> conversion as well, which would be great.

I'm confused: as far as I can tell, the NumPy floating-point types don't 
implement `as_integer_ratio`. (Except for `np.float64`, which subclasses 
`float` and so inherits `is_integer_ratio` from it.) Or are you suggesting that 
_if_ they were to implement `as_integer_ratio` at some point in the future, 
then they'd become compatible with `Fraction`?

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[issue33062] ssl_renegotiate() doesn't seem to be exposed

[Christian Heimes]

Christian Heimes  added the comment:

You can't.

Rekeying is not available yet. SSL_key_update() is only available with OpenSSL 
1.1.1 and TLS 1.3. Both are still in beta phase.

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[issue25345] Unable to install Python 3.5 on Windows 10

[Arran McCutcheon]

Arran McCutcheon  added the comment:

I'm also having this problem on Windows 10 with Python 3.6.4, and previous 
versions of Python. Every time I try to install Python, I get error 0x80070652. 
Rebooting doesn't help. I've attached my log file in case that helps as I don't 
know how to interpret it. Was a solution found?

--
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Added file: https://bugs.python.org/file47481/Python 3.6.4 
(64-bit)_20180313115253.log

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[issue33067] http.client no longer sends HTTP request in one TCP package

[Christian Heimes]

New submission from Christian Heimes :

https://bugs.python.org/issue23302 changed how http.client sends request. 
endheaders() no longer sends header and message body in one TCP package if the 
total payload is smaller than TCP max segment size. 
https://github.com/python/cpython/blob/3.5/Lib/http/client.py#L934-L936 uses 
two send calls to send header and body. This causes very simple HTTP servers in 
embedded devices to fail.

Matthew Garrett noticed the bug, see 
https://twitter.com/mjg59/status/972985566387032064 / 
https://twitter.com/mjg59/status/973000950439817217

We should try to send requests as one TCP package again. TCP_CORK may do the 
trick. Or we should fix our custom implementation of send. It has multiple 
issues, e.g. a fixed buffer. The buffer size is suboptimal for small MTU and 
jumbo frames.

--
components: Library (Lib)
keywords: 3.5regression
messages: 313743
nosy: benjamin.peterson, christian.heimes
priority: normal
severity: normal
status: open
title: http.client no longer sends HTTP request in one TCP package
type: behavior
versions: Python 3.6, Python 3.7, Python 3.8

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[issue33065] IDLE debugger: problem importing user created module

[Terry J. Reedy]

Terry J. Reedy  added the comment:

I cannot do anything from this bare description, as I cannot think of any 
reason why stepping should introduce an error.  It sounds like there are two 
files involved.  Try to reduce them to the minimum needed to reproduce the 
issue and then upload.

--
stage:  -> test needed
title: debugger issue concerning importing user created modules into another 
program -> IDLE debugger: problem importing user created module
type: compile error -> behavior

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[issue33068] Inconsistencies in parsing (evaluating?) longstrings

[David Lukeš]

New submission from David Lukeš :

""" \""" """ evaluates to ' """ ' (as expected), but without the surrounding 
spaces, """\"" evaluates to '"' instead of '"""'.

Is this expected behavior? If I'm reading the definition of string syntax in 
https://docs.python.org/3/reference/lexical_analysis.html#string-and-bytes-literals
 correctly, it shouldn't be.

--
components: Interpreter Core
messages: 313745
nosy: David Lukeš
priority: normal
severity: normal
status: open
title: Inconsistencies in parsing (evaluating?) longstrings
versions: Python 3.6

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[issue33068] Inconsistencies in parsing (evaluating?) longstrings

[Serhiy Storchaka]

Serhiy Storchaka  added the comment:

"""\"" is parsed as """\ "": a triple-quoted string containing an 
escaped '"', followed by an empty single-quoted string.

--
nosy: +serhiy.storchaka
resolution:  -> not a bug
stage:  -> resolved
status: open -> closed

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[issue33069] Maintainer information discarded when writing PKG-INFO

[Paul Ganssle]

New submission from Paul Ganssle :

This is basically the same as issue 962772, as there seems to have been a 
regression. The current version of distutils discards author= metadata if 
maintainer= is present, even though PEP 345 has added the Maintainer: and 
Maintainer-Email: metadata fields.

I think that the way forward is to have write_pkg_info generate separate 
Maintainer: and Maintainer-Email: fields.

--
components: Distutils
messages: 313747
nosy: dstufft, eric.araujo, p-ganssle
priority: normal
severity: normal
status: open
title: Maintainer information discarded when writing PKG-INFO
type: behavior
versions: Python 2.7, Python 3.6, Python 3.7

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[issue30528] ipaddress.IPv{4,6}Network.reverse_pointer is broken

[bbayles]

Change by bbayles :


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nosy: +bbayles

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[issue33070] Add platform triplet for RISC-V

[Andreas Schwab]

Change by Andreas Schwab :


--
components: Build
nosy: schwab
priority: normal
severity: normal
status: open
title: Add platform triplet for RISC-V
type: enhancement

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[issue33069] Maintainer information discarded when writing PKG-INFO

[bbayles]

Change by bbayles :


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nosy: +bbayles

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[issue33070] Add platform triplet for RISC-V

[Roundup Robot]

Change by Roundup Robot :


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pull_requests: +5868
stage:  -> patch review

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[issue33068] Inconsistencies in parsing (evaluating?) longstrings

[David Lukeš]

David Lukeš  added the comment:

Oh, right, of course! Sorry and thanks for taking the time to clarify that :)

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[issue33069] Maintainer information discarded when writing PKG-INFO

[Ned Deily]

Change by Ned Deily :


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nosy: +ncoghlan

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[issue33071] Document that PyPI no longer requires 'register'

[Paul Ganssle]

New submission from Paul Ganssle :

I've been asked to post this by @brainwave (who is having some trouble getting 
an account on bpo due to technical difficulties).

Per twine's github issue 311 ( https://github.com/pypa/twine/issues/311 ), it 
seems that distutil's docs Update setuptools and distutils docs, e.g., 
https://docs.python.org/3.6/distutils/packageindex.html#the-upload-command 
should be clarified to indicate that PyPI does not require register anymore, 
although other package indexes might.

--
assignee: docs@python
components: Distutils, Documentation
messages: 313749
nosy: docs@python, dstufft, eric.araujo, p-ganssle
priority: normal
severity: normal
status: open
title: Document that PyPI no longer requires 'register'
type: enhancement

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[issue30528] ipaddress.IPv{4,6}Network.reverse_pointer is broken

[Ronald Oussoren]

Ronald Oussoren  added the comment:

The "reverse_pointers" attribute is implicitly documented by this phrase in the 
introduction of network objects:

--
All attributes implemented by address objects are implemented by network 
objects as well.
--

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[issue33071] Document that PyPI no longer requires 'register'

[Christian Heimes]

Change by Christian Heimes :


--
components:  -Distutils
keywords: +easy
versions: +Python 2.7, Python 3.6, Python 3.7, Python 3.8

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[issue26707] plistlib fails to parse bplist with 0x80 UID values

[Jon Janzen]

Jon Janzen  added the comment:

Ping

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[issue26707] plistlib fails to parse bplist with 0x80 UID values

[Ronald Oussoren]

Ronald Oussoren  added the comment:

I'm still not too happy about supporting UIDs in plistlib, especially because 
I'm not sure it that's all that's needed. AFAIK I removed more types that the 
underlying encoder supported from plistlib because those are never used in 
plist files. 

The swift encoder for keyed archives is probably not the code that's actually 
used on the OS, AFAIK that still is Objective-C code.

P.S. I changed the version selection to 3.8, adding support for UIDs would be a 
feature change and not suited for back ports.

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versions: +Python 3.8 -Python 3.5, Python 3.6

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[issue28716] Fractions instantiation revisited

[Eric Wieser]

Eric Wieser  added the comment:

> Are you suggesting that _if_ they were to implement `as_integer_ratio` at 
> some point in the future, then they'd become compatible with `Fraction`

Yes, exactly. Conversely, there's little gain in implementing it _until_ 
`Fraction` supports calling it.

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[issue25345] Unable to install Python 3.5 on Windows 10

[Steve Dower]

Steve Dower  added the comment:

Arran - I think yours is a different issue. There should be some other log 
files near the one you shared that I'll need to see to find what's going wrong. 
Can you zip up all the Python ones and attach them here?

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[issue33063] failed to build _ctypes: undefined reference to `ffi_closure_FASTCALL'

[Siming Yuan]

Siming Yuan  added the comment:

edit - I do see this in python 3.6.4 on a different server when building 32-bit 

Red Hat Enterprise Linux Workstation release 6.7 (Santiago)

gcc --version
gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-16)

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[issue33056] LEaking files in concurrent.futures.process

[Steve Dower]

Steve Dower  added the comment:

Andrew - you can search for some module names in the nosy list to add the 
designated people for them. The components list doesn't include all of them 
(perhaps it should?).

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[issue26707] plistlib fails to parse bplist with 0x80 UID values

[Serhiy Storchaka]

Change by Serhiy Storchaka :


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type: behavior -> enhancement

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[issue24925] Allow doctest to find line number of __test__ strings if formatted as a triple quoted string.

[Jurjen N.E. Bos]

Jurjen N.E. Bos  added the comment:

I always use the following piece of code that can be trivially used to patch 
the source.
It basically looks for a using line in the test string and finds it in the 
source file. If there is a match, we know where we are. Otherwise it falls back 
to the "normal" way.

--
Added file: https://bugs.python.org/file47482/doctestfix.py

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[issue24925] Allow doctest to find line number of __test__ strings if formatted as a triple quoted string.

[Jurjen N.E. Bos]

Jurjen N.E. Bos  added the comment:

Oh wait, I already posted that so long ago I forgot about it.
Oops.
Sorry about the repetition, folks.
- Jurjen

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[issue33063] failed to build _ctypes: undefined reference to `ffi_closure_FASTCALL'

[Christian Heimes]

Christian Heimes  added the comment:

3.4 and 3.5 are in security release-only mode.

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[issue33063] failed to build _ctypes: undefined reference to `ffi_closure_FASTCALL'

[Zachary Ware]

Zachary Ware  added the comment:

Your better option is to install libffi-devel (or whatever the correct name is 
) on your system and use `./configure --with-system-ffi`.  This is the default 
in 3.6 and the only option in 3.7 (on any platform but Windows and macOS).

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[issue33069] Maintainer information discarded when writing PKG-INFO

[Paul Ganssle]

Change by Paul Ganssle :


--
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[issue17288] cannot jump from a 'return' or 'exception' trace event

[Xavier de Gaye]

Xavier de Gaye  added the comment:

In PR 5928 Serhiy Storchaka wrote:
> Great! Could you please create a backport to master?

Yes.
I prefer to answer in the issue as I am still not getting any mail from github.

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[issue23599] single and double quotes stripped upon paste with MacPorts libedit

[Cheryl Sabella]

Cheryl Sabella  added the comment:

Hi Ned,

Do you think this issue still needs follow up?

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[issue32174] nonASCII punctuation characters can not display in python363.chm.

[Steve Dower]

Steve Dower  added the comment:

We should probably prefer to force ASCII with explicit escapes (ideally named 
escapes, rather than codepoints). I'm not sure how to make Sphinx/docutils do 
that, but presumably it could be our own extension that handles the problematic 
characters people add to our docs.

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[issue17288] cannot jump from a 'return' or 'exception' trace event

[Xavier de Gaye]

Change by Xavier de Gaye :


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[issue26707] plistlib fails to parse bplist with 0x80 UID values

[Jon Janzen]

Jon Janzen  added the comment:

Support for KeyedArchives are not limited to the Swift implementation I linked 
to. They have been supported since Mac OS X since 10.2 (long before Swift came 
around). The documentation 
(https://developer.apple.com/documentation/foundation/nskeyedarchiver?language=objc)
 shows that NSKeyedArchive can only output in plist format since outputFormat 
is of type NSPropertyListFormat (allowing to output in either XML or binary).

The other unimplemented binary token types (URL, UUID, set, ordset) are not 
used under NSKeyedArchive (see the "Encoding Data and Objects" section of the 
documentation mentioned above) so there's no concern that supporting 0x80 (UID) 
will suddenly necessitate implementing the other unimplemented types. If you 
feel that it would be necessary to implement them in order to accept the patch 
I would be happy to try and implement them.

I know I certainly have an use case (reading to-do list data from the 2Do app) 
and the creator of this bug wanted to read SnapChat data files.

Currently, I am using a hot-patched plistlib._BinaryPlistParser to read the 
data I need (see attached for a snippet) and I would rather not do that, but if 
you think my use case scope does not warrant inclusion in the standard library 
then I'll just have to deal with that.

--
Added file: https://bugs.python.org/file47483/plist_hack.py

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[issue17288] cannot jump from a 'return' or 'exception' trace event

[Serhiy Storchaka]

Serhiy Storchaka  added the comment:


New changeset b8e9d6c5cd44ebc9c462fea9ad1bc5d0b970e28a by Serhiy Storchaka 
(xdegaye) in branch 'master':
bpo-17288: Prevent jumps from 'return' and 'exception' trace events. (GH-6107)
https://github.com/python/cpython/commit/b8e9d6c5cd44ebc9c462fea9ad1bc5d0b970e28a


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[issue17288] cannot jump from a 'return' or 'exception' trace event

[Serhiy Storchaka]

Serhiy Storchaka  added the comment:

Thank you! Do you mind to make a backport to 2.7 (if this makes a sense)?

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[issue33067] http.client no longer sends HTTP request in one TCP package

[Senthil Kumaran]

Change by Senthil Kumaran :


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[issue8947] Provide as_integer_ratio() method to Decimal

[Mark Dickinson]

Mark Dickinson  added the comment:

Apologies: the title change was accidental. Reverted.

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[issue8947] Provide as_integer_ratio() method to Decimal

[Alexander Belopolsky]

Alexander Belopolsky  added the comment:

This issue has been superseded by #25928.

--
resolution: rejected -> duplicate
stage: patch review -> resolved
superseder:  -> Add Decimal.as_integer_ratio()

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[issue33063] failed to build _ctypes: undefined reference to `ffi_closure_FASTCALL'

[Siming Yuan]

Siming Yuan  added the comment:

interesting, didn't know that option existed.

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[issue27984] singledispatch register should typecheck its argument

[Cheryl Sabella]

Cheryl Sabella  added the comment:

@xiang.zhang, would you be able to make a PR for your patch?  Thanks!

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versions: +Python 3.7, Python 3.8 -Python 3.5, Python 3.6

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[issue33072] The interpreter bytecodes for with statements are overly complex.

[Mark Shannon]

New submission from Mark Shannon :

The bytecodes WITH_CLEANUP_START and WITH_CLEANUP_FINISH are complex and 
implement entirely different behavior depending on what is on the stack.

This is unnecessary as the same semantics can be implemented with much simpler 
bytecodes and using the compiler do much of the work now done at runtime.

--
components: Interpreter Core
messages: 313771
nosy: Mark.Shannon
priority: normal
severity: normal
status: open
title: The interpreter bytecodes for with statements are overly complex.
type: enhancement
versions: Python 3.8

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[issue33072] The interpreter bytecodes for with statements are overly complex.

[Mark Shannon]

Change by Mark Shannon :


--
keywords: +patch
pull_requests: +5871
stage:  -> patch review

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[issue33041] Issues with "async for"

[Serhiy Storchaka]

Change by Serhiy Storchaka :


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[issue33041] Issues with "async for"

[Serhiy Storchaka]

Serhiy Storchaka  added the comment:

PR 6110 adds tests for jumping in/out of 'async with' blocks. It isn't directly 
related to 'async for', but it adds helpers that will be used also in tests for 
'async for'.

I'm not sure this is a correct and good way of writing such tests.

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[issue32949] Simplify "with"-related opcodes

[Serhiy Storchaka]

Change by Serhiy Storchaka :


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[issue33072] The interpreter bytecodes for with statements are overly complex.

[Serhiy Storchaka]

Serhiy Storchaka  added the comment:

I already opened issue32949 for this.

--
nosy: +serhiy.storchaka
resolution:  -> duplicate
stage: patch review -> resolved
status: open -> closed
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[issue33072] The interpreter bytecodes for with statements are overly complex.

[Mark Shannon]

Mark Shannon  added the comment:

So you did.
Sorry for the duplication

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[issue17288] cannot jump from a 'return' or 'exception' trace event

[Xavier de Gaye]

Change by Xavier de Gaye :


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[issue17288] cannot jump from a 'return' or 'exception' trace event

[Xavier de Gaye]

Xavier de Gaye  added the comment:

The conditions used for the fix are still the same in 2.7: f->f_trace == NULL 
on a call event, f->f_lasti == -1 in a new frame and f->f_stacktop == NULL in a 
trace function with a non-line event except for yield statements.
There are minor differences: the YIELD_FROM opcode does not exist and 
function.__code__ is written as function.func_code.

Added a PR for 2.7.

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[issue17288] cannot jump from a 'return' or 'exception' trace event

[Xavier de Gaye]

Xavier de Gaye  added the comment:

FWIW I now get github notifications, the problem was some bad configuration of 
my github profile (my fault).

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[issue23599] single and double quotes stripped upon paste with MacPorts libedit

[Ned Deily]

Ned Deily  added the comment:

Cheryl, as far as I know this is still an unresolved issue for at least some 
versions of Python and some versions of libedit.  I'd like to keep it open as a 
reminder.  If someone else wants to dig into it before I get around to it, feel 
free to do so.

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[issue17288] cannot jump from a 'return' or 'exception' trace event

[Serhiy Storchaka]

Change by Serhiy Storchaka :


--
versions: +Python 2.7, Python 3.6

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[issue17288] cannot jump from a 'return' or 'exception' trace event

[Serhiy Storchaka]

Serhiy Storchaka  added the comment:


New changeset baca85fcc7cdf70af4a76ea0966d4842c173de1a by Serhiy Storchaka 
(xdegaye) in branch '2.7':
[2.7] bpo-17288: Prevent jumps from 'return' and 'exception' trace events. 
(GH-6111)
https://github.com/python/cpython/commit/baca85fcc7cdf70af4a76ea0966d4842c173de1a


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[issue17288] cannot jump from a 'return' or 'exception' trace event

[Serhiy Storchaka]

Serhiy Storchaka  added the comment:

Thank you Xavier!

--
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status: open -> closed

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[issue33073] Add as_integer_ratio() to int() objects

[Raymond Hettinger]

New submission from Raymond Hettinger :

Goal:  make int() more interoperable with float by making a float/Decimal 
method also available on ints.  This will let mypy treat ints as a subtype of 
floats.

See: https://mail.python.org/pipermail/python-dev/2018-March/152384.html

Open question:  Is this also desired for fractions.Fraction and 
numbers.Rational?

--
assignee: Nofar Schnider
components: Library (Lib)
messages: 313780
nosy: Nofar Schnider, gvanrossum, rhettinger
priority: normal
severity: normal
status: open
title: Add as_integer_ratio() to int() objects
type: enhancement
versions: Python 3.8

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[issue33073] Add as_integer_ratio() to int() objects

[Tim Peters]

Tim Peters  added the comment:

> Is this also desired for fractions.Fraction and numbers.Rational?

I think so.  The idea, e.g., that "it's obvious" for Fraction is no more 
compelling than that it's even more obvious for ints ;-)  Given that it's 
spreading to ints anyway, there's an opportunity to make it possible for 
clients to write utterly uniform code for every type whose values can be 
represented as integer ratios.

I'd also say it's desirable to extend the Fraction constructor, to accept 
argument(s) of any type(s) that implement as_integer_ratio().  But that should 
probably be a different issue.

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[issue33073] Add as_integer_ratio() to int() objects

[Mark Dickinson]

Change by Mark Dickinson :


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[issue33073] Add as_integer_ratio() to int() objects

[Mark Dickinson]

Mark Dickinson  added the comment:

On the Fraction constructor, it looks like there's some overlap with the goals 
of issue #28716 here.

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[issue33073] Add as_integer_ratio() to int() objects

[Raymond Hettinger]

Raymond Hettinger  added the comment:

> it looks like there's some overlap with the goals of issue #28716

Okay, let's focus this issue on just int.as_integer_ratio() so that Nofar can 
have something small and self contained to work on :-)

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[issue33073] Add as_integer_ratio() to int() objects

[Nofar Schnider]

Nofar Schnider  added the comment:

I'm working on it

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[issue33073] Add as_integer_ratio() to int() objects

[Serhiy Storchaka]

Serhiy Storchaka  added the comment:

Wouldn't be better to add the function as_integer_ration() in the math module 
(or in more appropriate place)?

def as_integer_ration(x):
if hasattr(x, 'as_integer_ration'):
return x.as_integer_ration()
else:
return (x.numerator, x.denominator)

The advantage over adding the int method is that it will automatically support 
other rational numbers like NumPy integers.

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[issue28716] Fractions instantiation revisited

[Raymond Hettinger]

Raymond Hettinger  added the comment:

FYI, adding int.as_integer_ratio() is being taken care in a separate issue:  
https://bugs.python.org/issue33073 . I've set it aside for a beginning core-dev 
mentee to work on because it is simple and self-contained.  Pretty much all the 
related work can be done here.

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[issue33073] Add as_integer_ratio() to int() objects

[Raymond Hettinger]

Change by Raymond Hettinger :


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[issue33054] unittest blocks when testing function using multiprocessing.Pool with state spawn

[Antoine Pitrou]

Antoine Pitrou  added the comment:

Please, can you post a self-contained script to reproduce the issue?

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[issue33064] lib2to3 fails on a trailing comma after **kwargs in a function signature

[Łukasz Langa]

Change by Łukasz Langa :


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[issue33073] Add as_integer_ratio() to int() objects

[Tim Peters]

Tim Peters  added the comment:

Serhiy, we already went down the path of implementing this as a method.   Of 
course `numbers.Rational` could define the method as `return (self.numerator, 
self.denominator)` for itself and its subclasses.  Unless I'm confused, that 
would "magically" define the method for (at least) ints and Fractions too - but 
I didn't try it.

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[issue33047] "RuntimeError: dictionary changed size during iteration" using trace.py module

[Antoine Pitrou]

Antoine Pitrou  added the comment:

I cannot reproduce this on Ubuntu 16.04.

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[issue22872] multiprocessing.Queue raises AssertionError

[Antoine Pitrou]

Change by Antoine Pitrou :


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components: +Library (Lib) -ctypes

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[issue22872] multiprocessing.Queue raises AssertionError

[Antoine Pitrou]

Antoine Pitrou  added the comment:

The expected behaviour here would be to raise ValueError, as on other closed 
objects:

>>> s = io.StringIO()
>>> s.close()
>>> s.write("")
Traceback (most recent call last):
  File "", line 1, in 
ValueError: I/O operation on closed file

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nosy: +pitrou
versions: +Python 3.8 -Python 3.6

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