[issue27019] Reduce marshal stack depth for 2.7 on Windows debug build

[Roundup Robot]

Roundup Robot added the comment:

New changeset 6230ead06f65 by Benjamin Peterson in branch '2.7':
reduce marshal stack size in debug mode on windows (closes #27019)
https://hg.python.org/cpython/rev/6230ead06f65

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[issue27248] Possible refleaks in PyType_Ready in error condition

[Roundup Robot]

Roundup Robot added the comment:

New changeset f1fcf60863f8 by Benjamin Peterson in branch '3.5':
fix refleaks in PyDict_SetItem error cases (closes #27248)
https://hg.python.org/cpython/rev/f1fcf60863f8

New changeset 370b2985d462 by Benjamin Peterson in branch '2.7':
fix refleaks in PyDict_SetItem error cases (closes #27248)
https://hg.python.org/cpython/rev/370b2985d462

New changeset f7c180dbc070 by Benjamin Peterson in branch 'default':
merge 3.5 (#27248)
https://hg.python.org/cpython/rev/f7c180dbc070

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[issue27220] Add a pure Python version of 'collections.defaultdict'

[Serhiy Storchaka]

Changes by Serhiy Storchaka :


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[issue27380] IDLE: add base Query dialog with ttk widgets

[Terry J. Reedy]

Terry J. Reedy added the comment:

Next patch should finish issue except for a couple of minor questions.

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Added file: http://bugs.python.org/file43651/query-helpsource.diff

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[issue23591] Add IntFlags

[Ethan Furman]

Ethan Furman added the comment:

Reviewing...

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[issue24459] Mention PYTHONFAULTHANDLER in the man page

[Joshua Jay Herman]

Joshua Jay Herman added the comment:

ping

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[issue27137] Python implementation of `functools.partial` is not a class

[Nick Coghlan]

Nick Coghlan added the comment:

I should be able to take a look at the updated patch this coming weekend.

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[issue27400] Datetime NoneType after calling Py_Finalize and Py_Initialize

[Nick Coghlan]

Nick Coghlan added the comment:

Aye, skipping the caching entirely would be an even simpler solution - the only 
thing it is saving in the typical case is a dictionary lookup in the modules 
cache.

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[issue27448] Race condition in subprocess.Popen which causes a huge memory leak

[Gregory P. Smith]

Gregory P. Smith added the comment:

ah, okay, that makes much more sense and is indeed a bug.

Recommendation given that most people won't be using a python 2.7 version that 
has this and tons of other subprocess from a threaded process bugs fixed: Use 
subprocess32 where this isn't a problem.

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[issue27400] Datetime NoneType after calling Py_Finalize and Py_Initialize

[Ammar Askar]

Ammar Askar added the comment:

Is there any particular reason that datetime.strptime caches the imported 
module like that? 

>From a quick search, these two other examples don't bother with any caching: 

https://github.com/python/cpython/blob/2d264235f6e066611b412f7c2e1603866e0f7f1b/Modules/timemodule.c#L709

https://github.com/python/cpython/blob/64fe35c9fee088f7fec4dd2d760cb0026ac54ec8/Python/traceback.c#L277

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[issue19489] move quick search box above TOC

[Ammar Askar]

Ammar Askar added the comment:

It looks like this can be fixed by us. Since sphinx 1.0 there is this handy 
config parameter: 
http://www.sphinx-doc.org/en/stable/config.html#confval-html_sidebars

I've attached a patch which pins the searchbox as the first thing on every page.

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Added file: http://bugs.python.org/file43650/searchbar.diff

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[issue23710] C API doc for PyObject_HEAD is outdated

[Ammar Askar]

Ammar Askar added the comment:

This diff amends the documentation to point out that PyObject_HEAD includes the 
ob_base field, gives a brief overview of it and points to the 
PyObject/structures page for more information.

It also changes the semicolon part to a warning for clarity.

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Added file: http://bugs.python.org/file43649/capidocs.diff

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[issue27242] Make the docs for NotImplemented & NotImplementedError unambiguous

[Emanuel Barry]

Emanuel Barry added the comment:

New patch with proper indenting, should be good as far as formatting is 
concerned :)

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[issue26267] UUID docs should say how to get "standard form"

[Ammar Askar]

Ammar Askar added the comment:

This patch adds documentation for the str(uuid) operator along with documenting 
the fact that UUID instances support comparisons with `>` and `<`.

It also indents the attributes and descriptions to emphasize that they are part 
of the UUID instance, not the uuid module. 

I followed https://docs.python.org/3/library/stdtypes.html#set for documenting 
the operators, hope it's fine.

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Added file: http://bugs.python.org/file43647/uuiddocs.diff

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[issue26823] Shrink recursive tracebacks

[Emanuel Barry]

Emanuel Barry added the comment:

Sorry for the delay, but here's a patch with updated tests after Nick's 
suggestions. It should be ready to merge now.

(I'm having some failures in test_traceback, but they fail even without my 
patch)

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[issue23085] update internal libffi copy to 3.2.1

[Chi Hsuan Yen]

Chi Hsuan Yen added the comment:

Oops the proglem of clang on ARM is not completely fixed in libffi 3.2.1. This 
commit [1] fixes only one `stmeqia` but not another.

[1] 
https://github.com/libffi/libffi/commit/6eff9ff9e72463b9783be2514f944b6f05692054#diff-c6400d42bf23866ded49558ca9a54205R220

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[issue23085] update internal libffi copy to 3.2.1

[Zachary Ware]

Changes by Zachary Ware :


--
versions: +Python 3.6 -Python 3.4

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[issue23085] update internal libffi copy to 3.2.1

[Chi Hsuan Yen]

Chi Hsuan Yen added the comment:

+1 for this. Cross-compile CPython for ARM with clang fails in _ctypes due to 
https://llvm.org/bugs/show_bug.cgi?id=20595. This bug is already fixed in 
libffi.

By the way, I can't apply libffi.patch to the default branch. Some hunks are 
rejcted. Is there something wrong?

issue26942 may also be relevant. I did't test it as I'm not sure how to update 
CPython's internal libffi.

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[issue27455] Fix tkinter examples to be PEP8 compliant

[John Hagen]

John Hagen added the comment:

@Berker, thanks for the tip! I've fixed it up.

I think this latest patch covers everything Berker and Terry have commented 
about.

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[issue27455] Fix tkinter examples to be PEP8 compliant

[John Hagen]

Changes by John Hagen :


Removed file: http://bugs.python.org/file43641/0001-Fix-tkinter-docs-PEP8.diff

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[issue27220] Add a pure Python version of 'collections.defaultdict'

[Emanuel Barry]

Emanuel Barry added the comment:

Raymond, do you have any interest/time to review this? I can ask someone else, 
if you prefer.

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[issue27458] Allow subtypes of unicode/str to hit the optimized unicode_concatenate block

[STINNER Victor]

STINNER Victor added the comment:

I close the issue.

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[issue27458] Allow subtypes of unicode/str to hit the optimized unicode_concatenate block

[Ammar Askar]

Ammar Askar added the comment:

> We really don't want to encourage any reliance on this optimization.  It was 
> put there only to help mitigate the performance impact of a common mistake.

Aah, I didn't realize the extra context behind why the unicode_concatenate path 
actually exists in ceval. Makes sense though since it was the only exceptional 
case that popped out in ceval.

> It would be interesting to see an example showing the benefit of this change

I'm no expert at benchmarking but I threw together a quick script to compare 
the different ways of string concatenation and it seems like an INPLACE_ADD is 
the fastest. (which makes sense because it avoids the overhead of having a list 
object that ''.join brings in, not sure why StringIO is slower than both 
though, maybe that would be a better place to improve?)

Either way if you guys think this adds too much complexity on top of an 
existing hack, this is fine to close.


Benchmarking results:

  INPLACE_ADD short ascii
0.4307783489348367
  ''.join short ascii
0.6934443039353937
  StringIOshort ascii
0.9447220619767904

  INPLACE_ADD short unicode
0.4411839219974354
  ''.join short unicode
0.666951927007176
  StringIOshort unicode
0.9783720930572599

  INPLACE_ADD long ascii
3.6157665309729055
  ''.join long ascii
6.938268916099332
  StringIOlong ascii
5.279585674987175

  INPLACE_ADD long unicode
3.7768358619650826
  ''.join long unicode
4.641092017991468
  StringIOlong unicode
7.6051657549105585

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[issue27442] expose the Android API level in sysconfig.get_config_vars()

[STINNER Victor]

STINNER Victor added the comment:

+@unittest.skipIf(sysconfig.get_config_var('ANDROID_API_LEVEL') == 0,
+ "not an android platform")

Hum, sysconfig.get_config_var() returns None for unknown variable. Why checking 
==0?

@Xavier: Are you generating the patch using "hg diff"? I don't see the base 
revision in your patch, and so there is no [Review] link on your patch.

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[issue27051] Create PIP gui

[Terry J. Reedy]

Terry J. Reedy added the comment:

Window stacking order can be queried with tcl calls: 
https://stackoverflow.com/questions/10343759/determining-what-tkinter-window-is-currently-on-top/10391659#10391659.
  I do not if there is the equivalent for frames.  Note that uses can change 
window stack order, hence the need for a query, but not frame stack order.

https://stackoverflow.com/questions/35690249/tkinter-is-it-possible-to-change-the-stacking-order-of-placed-frames
 claims that frames are initially stacked in order created. Verify if you want. 
After that, keep track of how you change the order.

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[issue27434] cross-building python 3.6 with an older interpreter fails

[STINNER Victor]

STINNER Victor added the comment:

restrict_interp_2.patch: LGTM.

not ... == '...' can be written ... != '...', no?

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[issue25077] Compiler warnings: initialization from incompatible pointer type

[Chris Jerdonek]

Changes by Chris Jerdonek :


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[issue27137] Python implementation of `functools.partial` is not a class

[Emanuel Barry]

Emanuel Barry added the comment:

Is there anything still preventing this from being merged? I think the ability 
to consistently get the same behaviour, with or without _functools available, 
outweighs the performance and simplicity loss (and as far as performance loss 
goes, it appears that _functools is always available as far as CPython is 
concerned, which makes it a non-issue).

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[issue27458] Allow subtypes of unicode/str to hit the optimized unicode_concatenate block

[STINNER Victor]

STINNER Victor added the comment:

I agree with Raymond. Use ''.join(list of str) or a similar pattern.

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[issue23085] update internal libffi copy to 3.2.1

[Berker Peksag]

Berker Peksag added the comment:

> which Berker says have been fixed in upstream libffi: 
> https://bugs.python.org/issue25077#msg266068

Correct, here is the actual commit: 
https://github.com/libffi/libffi/commit/4a677a425c18eda4bc5357b2485da57f133f908d

I have also sent a patch to upstream libffi for 
https://github.com/python/cpython/blob/master/Modules/_ctypes/libffi.diff#L161: 
https://github.com/libffi/libffi/commit/1e82e1cda43dacd8b6ab2d9ac4db33523d86f5dc

But both of them will be released in libffi 4.0.

Note that the current master branch of libffi doesn't seem to be compiled with 
a C89 compiler (see https://github.com/libffi/libffi/issues/218 for details). 
See also https://mail.python.org/pipermail/python-dev/2016-June/144816.html for 
discussion about C99 support in CPython.

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[issue27460] Change bytes exception when overflow

[Roundup Robot]

Roundup Robot added the comment:

New changeset f9481e5f1792 by Serhiy Storchaka in branch 'default':
Issue #27460: Unified error messages in bytes constructor for integers
https://hg.python.org/cpython/rev/f9481e5f1792

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[issue27460] Change bytes exception when overflow

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

Thank you for your contribution Xiang Zhang.

--
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stage: commit review -> resolved
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[issue27460] Change bytes exception when overflow

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

This is enough.

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[issue23085] update internal libffi copy to 3.2.1

[Chris Jerdonek]

Chris Jerdonek added the comment:

> Are there any issue *we* have with libffi which an update to 3.2.1 would 
> solve ?

There are these Ubuntu-specific compiler warnings:
https://bugs.python.org/issue25077

which Berker says have been fixed in upstream libffi: 
https://bugs.python.org/issue25077#msg266068

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[issue26974] Crash in Decimal.from_float

[Raymond Hettinger]

Raymond Hettinger added the comment:

My preference is to leave the Python implementation of from_float() as-is.  
Pure Python code is not obligated to defend itself against bizarre code.  The C 
code however is obliged to not segfault.

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[issue27460] Change bytes exception when overflow

[Xiang Zhang]

Xiang Zhang added the comment:

The constructor has been well tested in 
https://hg.python.org/cpython/file/tip/Lib/test/test_bytes.py#l111. It looks 
like that the original author only wants to guarantee the exception type but 
not message. So I didn't add a assertRaisesRegex test.

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[issue27458] Allow subtypes of unicode/str to hit the optimized unicode_concatenate block

[Raymond Hettinger]

Raymond Hettinger added the comment:

We really don't want to encourage any reliance on this optimization.  It was 
put there only to help mitigate the performance impact of a common mistake.

I don't think subclasses warrant extended coverage.  This was already a hack at 
the outer limits of how far we were willing to go.   It doesn't make sense to 
propagate it further.

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[issue27460] Change bytes exception when overflow

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

LGTM. Are there any tests for these cases?

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[issue27460] Change bytes exception when overflow

[Xiang Zhang]

Changes by Xiang Zhang :


Removed file: http://bugs.python.org/file43637/bytes_exception_msg.patch

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[issue27460] Change bytes exception when overflow

[Xiang Zhang]

Changes by Xiang Zhang :


Added file: http://bugs.python.org/file43643/bytes_exception_msg.patch

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[issue27458] Allow subtypes of unicode/str to hit the optimized unicode_concatenate block

[Guido van Rossum]

Changes by Guido van Rossum :


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[issue27458] Allow subtypes of unicode/str to hit the optimized unicode_concatenate block

[Guido van Rossum]

Guido van Rossum added the comment:

I'm not interested, sorry.

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[issue26746] struct.pack(): trailing padding bytes on x64

[Allan Haldane]

Allan Haldane added the comment:

Hello,

Over at numpy I have a proposed fix for the bug you discovered, that numpy 
drops trailing padding in the 3118 format string. My strategy is going to make 
numpy interpret format strings exactly the same way as the struct module, let 
me know if you disagree.

See https://github.com/numpy/numpy/pull/7798

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[issue27386] Asyncio server hang when clients connect and immediately disconnect

[Jim Fulton]

Changes by Jim Fulton :


--
type: behavior -> security

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[issue27151] multiprocessing.Process leaves read pipes open (Process.sentinel)

[Roman Bolshakov]

Changes by Roman Bolshakov :


Removed file: http://bugs.python.org/file43046/leak.py

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[issue27151] multiprocessing.Process leaves read pipes open (Process.sentinel)

[Roman Bolshakov]

Roman Bolshakov added the comment:

multiprocessing.Queue._writer is affected by similar issue. _writer FD is left 
open after .close() is invoked on a Queue.

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[issue27448] Race condition in subprocess.Popen which causes a huge memory leak

[Andrew]

Andrew added the comment:

Gregory P. Smith, 

"if you are seeing a memory leak and the statements that fail before the 
gc.enable call are more than"

The problem in my case was different. It was race condition between 
gc.isenabled and gc.disable. 

Isenabled was called when gc was disabled by another subprocess. This caused 
that later on gc.enable was not triggered.

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[issue27455] Fix tkinter examples to be PEP8 compliant

[Berker Peksag]

Berker Peksag added the comment:

Thanks for the updated patch. I noticed a typo in your test script. It works 
for me if I update the super() line from

super().__init__(self, master)

to

super().__init__(master)

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[issue7769] SimpleXMLRPCServer.SimpleXMLRPCServer.register_function as decorator

[Brian Curtin]

Changes by Brian Curtin :


--
nosy:  -brian.curtin

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[issue27455] Fix tkinter examples to be PEP8 compliant

[John Hagen]

John Hagen added the comment:

@Terry I've removed the two string quotes changes in the latest patch.

@Berker I spent a small amount of time trying out your proposed super() 
changes, but could not get them to work on 3.5.1.

"C:\Users\John Hagen\AppData\Local\Programs\Python\Python35\python.exe" 
"C:/Users/John Hagen/PycharmProjects/test/test.py"
Traceback (most recent call last):
  File "C:/Users/John Hagen/PycharmProjects/test/test.py", line 25, in 
app = Application(master=root)
  File "C:/Users/John Hagen/PycharmProjects/test/test.py", line 6, in __init__
super().__init__(self, master)
  File "C:\Users\John 
Hagen\AppData\Local\Programs\Python\Python35\lib\tkinter\__init__.py", line 
2583, in __init__
Widget.__init__(self, master, 'frame', cnf, {}, extra)
  File "C:\Users\John 
Hagen\AppData\Local\Programs\Python\Python35\lib\tkinter\__init__.py", line 
2131, in __init__
BaseWidget._setup(self, master, cnf)
  File "C:\Users\John 
Hagen\AppData\Local\Programs\Python\Python35\lib\tkinter\__init__.py", line 
2109, in _setup
self.tk = master.tk
AttributeError: 'Application' object has no attribute 'tk'



import tkinter as tk


class Application(tk.Frame):
def __init__(self, master=None):
super().__init__(self, master)
self.pack()
self.create_widgets()

def create_widgets(self):
self.hi_there = tk.Button(self)
self.hi_there["text"] = "Hello World\n(click me)"
self.hi_there["command"] = self.say_hi
self.hi_there.pack(side="top")

self.quit = tk.Button(self, text="QUIT", fg="red",
  command=root.destroy)
self.quit.pack(side="bottom")

def say_hi(self):
print("hi there, everyone!")


root = tk.Tk()
app = Application(master=root)
app.mainloop()

--
Added file: http://bugs.python.org/file43641/0001-Fix-tkinter-docs-PEP8.diff

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[issue27455] Fix tkinter examples to be PEP8 compliant

[John Hagen]

Changes by John Hagen :


Removed file: http://bugs.python.org/file43628/0001-Fix-tkinter-docs-PEP8.diff

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[issue26826] Expose new copy_file_range() syscall in os module.

[Marcos Dione]

Marcos Dione added the comment:

Another version:

* Changed availability to kernel type, version and date.

--
Added file: http://bugs.python.org/file43640/copy_file_range.diff

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[issue26826] Expose new copy_file_range() syscall in os module.

[Marcos Dione]

Marcos Dione added the comment:

New version:

* Adds a new test for offset parameters.

--
Added file: http://bugs.python.org/file43639/copy_file_range.diff

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[issue27460] Change bytes exception when overflow

[Xiang Zhang]

Changes by Xiang Zhang :


--
type:  -> enhancement
versions: +Python 3.6

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[issue27434] cross-building python 3.6 with an older interpreter fails

[Xavier de Gaye]

Xavier de Gaye added the comment:

New patch that gets rid of the changes in configure made by my version of 
autoconf. This version is 2.69 though, i.e. the same as the generated configure 
file that is under control of mercurial in the default branch.

--
assignee:  -> xdegaye
stage: patch review -> commit review
Added file: http://bugs.python.org/file43638/restrict_interp_2.patch

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[issue27460] Change bytes exception when overflow

[Xiang Zhang]

New submission from Xiang Zhang:

I suggest change `bytes` exception message when an iterable containing overflow 
integers.

Right now, bytes([sys.maxsize+1]) emits ValueError: cannot fit 'int' into an 
index-sized integer "ValueError: cannot fit 'int' into an index-sized integer". 
I think actually when use bytes in such a situation we don't care the integer 
overflows or not, we only care if the integer is in range(0, 256) or not, just 
like what bytearray([sys.maxsize+1]) does.

--
files: bytes_exception_msg.patch
keywords: patch
messages: 269879
nosy: xiang.zhang
priority: normal
severity: normal
status: open
title: Change bytes exception when overflow
Added file: http://bugs.python.org/file43637/bytes_exception_msg.patch

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[issue27453] $CPP invocation in configure must use $CPPFLAGS

[Xavier de Gaye]

Changes by Xavier de Gaye :


--
title: Fix cross-compilation with Android NDK and Clang -> $CPP invocation in 
configure must use $CPPFLAGS
versions: +Python 3.5

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[issue27442] expose the Android API level in sysconfig.get_config_vars()

[Xavier de Gaye]

Xavier de Gaye added the comment:

New patch incorporating the substitutions to '$CPP $CPPFLAGS' and 
ANDROID_API_LEVEL.

--
stage: patch review -> commit review
Added file: http://bugs.python.org/file43636/android_api_3.patch

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[issue26915] Test identity first in membership operation of ItemsView, ValuesView and Sequence in collections.abc

[Xiang Zhang]

Xiang Zhang added the comment:

ping

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[issue27248] Possible refleaks in PyType_Ready in error condition

[Xiang Zhang]

Xiang Zhang added the comment:

ping

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[issue7769] SimpleXMLRPCServer.SimpleXMLRPCServer.register_function as decorator

[Xiang Zhang]

Xiang Zhang added the comment:

ping

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[issue17711] Persistent id in pickle with protocol version 0

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

Ping again.

--
versions: +Python 3.6 -Python 3.4

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[issue21708] Deprecate nonstandard behavior of a dumbdbm database

[Roundup Robot]

Roundup Robot added the comment:

New changeset 62da75b29b29 by Serhiy Storchaka in branch 'default':
Issue #21708: Deprecated dbm.dumb behavior that differs from common dbm
https://hg.python.org/cpython/rev/62da75b29b29

--
nosy: +python-dev

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[issue27051] Create PIP gui

[Upendra Kumar]

Upendra Kumar added the comment:

@Terry,

I am switching between different frames using frame.tkraise() method in order 
to switch the user attention.

Now, if I want to test which frame is at top what should I check for or which 
parameter I should check.

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[issue27441] redundant assignments to ob_size of new ints that _PyLong_New returned

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

Changes to PyLong_FromUnsignedLong() and PyLong_FromUnsignedLongLong() LGTM. I 
don't know whether other changes have a positive effect. Are there any 
microbenchmarks? There are other places in which Py_SIZE() is set to the same 
value.

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[issue27452] IDLE: Cleanup config code

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

In this case it works, because os.join('', filename) returns filename.

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[issue27458] Allow subtypes of unicode/str to hit the optimized unicode_concatenate block

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

1. It would be interesting to see an example showing the benefit of this 
change. How large is the benefit, and how common is this case?

2. The optimization of string concatenation is CPython specific, and AFAIK it 
was decided not to extend it to other cases (e.g. to bytes). The recommended 
way for efficient string concatenation is using str.join or io.StringIO. Or 
classic string formatting -- this is yet one CPython specific optimization.

3. Non-compact string representation is legacy. It is kept for compatibility 
with existing code, but will be removed in future. The work with non-compact 
strings is not always efficient.

--
nosy: +gvanrossum, serhiy.storchaka

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[issue27458] Allow subtypes of unicode/str to hit the optimized unicode_concatenate block

[Antoine Pitrou]

Changes by Antoine Pitrou :


--
nosy:  -pitrou

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