[issue26359] CPython build options for out-of-the box performance

Alecsandru Patrascu added the comment: Hello Brett, I saw that there was no other activity on this issue so far. Can you please update this, as I do not have rights? -- ___ Python tracker

Re: Best way to inplace alter a list going into postgres

Sayth Renshaw writes: > Ah so I should create a function that processes and modifies in the > middle of the process between obtaining and committing. Separating the tasks: * Get the data from the database, into a form useful inside your program. (For a Python program

Re: Best way to inplace alter a list going into postgres

Ah so I should create a function that processes and modifies in the middle of the process between obtaining and committing. Or if I need to do this and more processing should I be using something like sqlalchemy or peewee http://docs.peewee-orm.com/en/latest/ ? Sayth --

[issue23459] Linux: expose the new execveat() syscall

Марк Коренберг added the comment: > we are already effectvely exposing fexecve Did not found neither os.fexecve() nor os.execve() documentation about this. How I can use glibc's fexecve() ? -- ___ Python tracker

Re: Best way to inplace alter a list going into postgres

Sayth Renshaw writes: > What is the best way to inplace alter a list going into a postgres > database using split but being sure that the order of items remains > correct. That's a trick question. The best way to modify fields of a record is not with a list. Instead,

Best way to inplace alter a list going into postgres

Hi What is the best way to inplace alter a list going into a postgres database using split but being sure that the order of items remains correct. I am using this list of ids to retrieve data from XML horseattrs = ('id', 'race_id', 'horse', 'number', 'finished', 'age', 'sex',

[issue27161] Confusing exception in Path().with_name

R. David Murray added the comment: Again, I don't think so. We don't generally wrap TypeErrors or ValueErrors. On the other hand, if the try/except can *add* additional contextual information about the error, it might be worthwhile. -- ___ Python

[issue27155] '-' sign typo in example

Ben Kane added the comment: https://docs.python.org/3/library/subprocess.html#subprocess.Popen.returncode does mention the negativeness about returncode in conjunction with POSIX signals. It would be helpful to mention this Python-specific (I think) behavior in a comment. However, returncode

[issue27113] sqlite3 connect parameter "check_same_thread" not documented

Senthil Kumaran added the comment: Thanks for the review. Made it both singular in the updated patch. * As for why the default value was chosen to be to True, I think, the reason is pysqlite, from sqlite3 module was derived, did not support this option when it was introduced. I still do not

[issue27161] Confusing exception in Path().with_name

Ethan Furman added the comment: I think the request is to raise a single PathlibError instead of the broad range of possible errors. Something like: try: blah blah except TypeError as e: raise PathlibError(str(e)) Since pathlib is a high level library this seems appropriate.

[issue27157] Unhelpful error message when one calls a subclass of type with a custom metaclass

Emanuel Barry added the comment: New patch with Berker's comments. I'm really not used to Sphinx markup so thanks for that! > Is there any person who really thinks that their own patch is *not* ready for > commit review? :) Partial patches aren't that uncommon in some projects. I also

[issue27157] Unhelpful error message when one calls a subclass of type with a custom metaclass

Berker Peksag added the comment: Thanks for the patch, Emanuel. I left some comments about Sphinx markup on Rietveld. > Berker, I don't mind if people mark their own patches for commit review *when > they think it is ready for commit*. Is there any person who really thinks that their own

[issue22558] Missing doc links to source code

Changes by Guido van Rossum : -- nosy: -gvanrossum ___ Python tracker ___ ___

[issue27161] Confusing exception in Path().with_name

R. David Murray added the comment: I don't think so. Python uses duck typing, and one of the consequences of that is you can get weird errors if you pass in a type that sort-of-works but doesn't really. Arbitrarily restricting the input type is not something we do (that's what the whole

[issue27157] Unhelpful error message when one calls a subclass of type with a custom metaclass

R. David Murray added the comment: Berker, I don't mind if people mark their own patches for commit review *when they think it is ready for commit*. (Just as with reviewers, if they start being consistently right, they are ready for commit privs :) However, a non-committer setting a patch

[issue22331] test_io.test_interrupted_write_text() hangs on the buildbot FreeBSD 7.2

Martin Panter added the comment: Found the same hang on the 3.6 branch, which was definitely running separate processes: http://buildbot.python.org/all/builders/AMD64%20FreeBSD%209.x%203.x/builds/4210/steps/test/logs/stdio == CPython 3.6.0a0 (default:ed6345cb08ab, Apr 29 2016, 18:35:36) [GCC

[issue27161] Confusing exception in Path().with_name

New submission from Antony Lee: `Path().with_name` can fail with a lot of different exceptions: >>> Path("foo").with_name(0) Traceback (most recent call last): File "", line 1, in File "/usr/lib/python3.5/pathlib.py", line 800, in with_name raise ValueError("Invalid

[issue22331] test_io.test_interrupted_write_text() hangs on the buildbot FreeBSD 7.2

Martin Panter added the comment: Thanks, that is a very good point about threads. I remember that testing tkinter leaves an internal TK or TCL thread running in the background. And I understand Free BSD delivers process signals to arbitrary threads (not necessarily the main thread). But the

[issue27157] Unhelpful error message when one calls a subclass of type with a custom metaclass

Berker Peksag added the comment: Please don't mark your own patch as 'commit review'. -- nosy: +berker.peksag stage: commit review -> patch review ___ Python tracker

[issue23459] Linux: expose the new execveat() syscall

R. David Murray added the comment: You can currently call os.execve with a file pointer. How is that different from adding an execveat with AS_EMPTY_PATH, functionally? I think we don't need to add this syscall, because it is intended to allow more robust implementation of fexecve, and we

[issue23459] Linux: expose the new execveat() syscall

Марк Коренберг added the comment: It is actual to me due to it's AT_EMPTY_PATH feature (I download script, verify signature, and want to run it) See also `man 3 fexecve` Why not to add `dir_fd=None` ? (as in `os.rmdir()` for example). It should be very small patch, as I think. Reopen

[issue26667] Update importlib to accept pathlib.Path objects

Brett Cannon added the comment: It's informed. I need to go through the API and see what does or does not makes sense based on PEP 519. -- ___ Python tracker

Re: Don't understand a probleme of module time not defined when calling a foo func

On Mon, 30 May 2016, 21:08 Ni Va, wrote: > > _ > Output: > Traceback (most recent call last): > File "", line 1, in > File "", line 16, in PyExecReplace > File "", line 22, in > File "", line 11, in foo > NameError: global name 'time' is not defined >

[issue26439] ctypes.util.find_library fails when ldconfig/glibc not available (e.g., AIX)

aixtools added the comment: On 28-May-16 04:04, Martin Panter wrote: > Martin Panter added the comment: > > Strictly speaking, Python 2.7 never had special support for RTLD_MEMBER or > find_library(). That is why I am unsure about many of these changes being > done in 2.7. They seem more like

[issue18117] Missing symlink:Current after Mac OS X 3.3.2 package installation

R. David Murray added the comment: Ned, can this issue be closed or is there still something to discuss here? -- nosy: +r.david.murray ___ Python tracker

Don't understand a probleme of module time not defined when calling a foo func

Hi Evereybody, New in python dev, I don't understand why I obtain a problem of time module import as below in my function foo meanwhile this module is visible from the main core code. Thank you by advance Best Regards Niva # -*- coding: utf-8 -*- import time import sys from timeout import *

[issue24882] ThreadPoolExecutor doesn't reuse threads until #threads == max_workers

Torsten Landschoff added the comment: For demonstration purposes, here is a small example specifically for Linux which shows how each request starts a new thread even though the client blocks for each result. -- nosy: +torsten Added file:

[issue12691] tokenize.untokenize is broken

Terry J. Reedy added the comment: If there are, I can't remember. This was one or 7 or 8 untokenize issues with about 5 separate bugs between them. If there are any current untokenize issues not covered by some other open issue, then a new issue should be opened. -- resolution: ->

[issue12691] tokenize.untokenize is broken

R. David Murray added the comment: Is there anything left to do here? -- nosy: +r.david.murray ___ Python tracker ___

Re: Recommendation for Object-Oriented systems to study

On 5/30/2016 11:57 AM, Ankush Thakur wrote: On Monday, May 30, 2016 at 12:00:01 AM UTC+5:30, Terry Reedy wrote: Read the source code of the doctest module in the standard library. Or pick a module with classes that interests you, with the caveat that some are old and crusty. I learned from

[issue27159] Python 3.5.1's websocket's lib crashes in event that internet connection stops.

R. David Murray added the comment: Yes, please open only single focus issues. websockets is not part of the standard library, so that's not appropriate for this tracker ((unless you've found an underlying bug in python, in which case report that please). For the bytecode questions you

[issue27157] Unhelpful error message when one calls a subclass of type with a custom metaclass

Changes by Emanuel Barry : Added file: http://bugs.python.org/file43060/type_one_argument_3.patch ___ Python tracker ___

[issue27157] Unhelpful error message when one calls a subclass of type with a custom metaclass

Emanuel Barry added the comment: New patch with tests and documentation. I didn't really know where to put the tests; test_types seemed reasonable to me (other option was test_metaclass). -- stage: test needed -> commit review ___ Python tracker

[issue27157] Unhelpful error message when one calls a subclass of type with a custom metaclass

Changes by Emanuel Barry : -- Removed message: http://bugs.python.org/msg266711 ___ Python tracker ___

[issue27157] Unhelpful error message when one calls a subclass of type with a custom metaclass

Changes by Eryk Sun : -- Removed message: http://bugs.python.org/msg266710 ___ Python tracker ___

[issue27157] Unhelpful error message when one calls a subclass of type with a custom metaclass

Emanuel Barry added the comment: Let me just make sure I got you right - you're fine with `type` and only `type` being able to use the one-argument form in 3.6, but prefer 3.5 and 2.7 to be even more permissive than they currently are? Regardless, I don't think this should go into a bugfix

[issue27157] Unhelpful error message when one calls a subclass of type with a custom metaclass

Eryk Sun added the comment: > Please treat this as a new feature (just in case) and only > apply it to 3.6. How about changing PyType_CheckExact to PyType_Check for 2.7 and 3.5? It solves the original problem by expanding the single-argument case to metaclasses that aren't an exact instance

[issue27160] str.format: Silent truncation of kwargs when passing keywords containing colons

Kenneth Lim added the comment: Ah, so the truncation is fully intended behavior. As for the name, a touch too many comic-books in the past might be the reason I latched onto "Barry" as a first name. Thanks for the clarification. On Tue, May 31, 2016 at 12:37 AM, Emanuel Barry

[issue25566] asyncio reference cycles after ConnectionResetError

Guido van Rossum added the comment: Please submit a patch to the upstream asyncio repo, github.com/Python/asyncio. --Guido (mobile) On May 30, 2016 3:46 AM, "Sean Hunt" wrote: > > Sean Hunt added the comment: > > I am 1 of those people who want to handle the error with

Re: re.search - Pattern matching review

On 30 May 2016 at 10:03, Ganesh Pal wrote: > Thanks Matt for the reply and lovely analysis . I was trying to complicate > the simple task :( > > Here is how the code looks now , the whole idea was just to match the > pattern and return it > > > def get_block(block): > >

[issue27160] str.format: Silent truncation of kwargs when passing keywords containing colons

Emanuel Barry added the comment: The behaviour is correct, it's your assumptions that aren't :) The code for str.format only checks for what's before the colon (here, "HGNC") and checks if that's part of the dict provided. It isn't, so it raises a KeyError. It doesn't even get to the format

[issue27157] Unhelpful error message when one calls a subclass of type with a custom metaclass

Serhiy Storchaka added the comment: Needed tests and updating the documentation. -- nosy: +serhiy.storchaka stage: commit review -> test needed ___ Python tracker

[issue27157] Unhelpful error message when one calls a subclass of type with a custom metaclass

Guido van Rossum added the comment: No, just an entry in Misc/NEWS. --Guido (mobile) -- ___ Python tracker ___

Re: python parsing suggestion

Hi, On 30/05/2016 09:34, Ganesh Pal wrote: Hi , Trying to extract the '1,1,114688:8192' pattern form the below output. pdb>stdout: '3aae5d0-1: Parent Block for 1,1,19169280:8192 (block 1,1,114688:8192) --\n3aae5d0-1: magic 0xdeaff2fe mark_cookie

[issue5996] abstract class instantiable when subclassing dict

Xiang Zhang added the comment: I think subclassing builtin types and making it abstract is rare. And when there is a need, we can mimic this in application level (this may also apply to types having custom __new__): In [2]: class CustomDict(dict, metaclass=abc.ABCMeta): ...: def

[issue27160] str.format: Silent truncation of kwargs when passing keywords containing colons

Kenneth Lim added the comment: Hi Barry, I was aware of that. However, I was alluding to the KeyError produced, and the silent truncation of the text. Rather than failing at the colon step (SyntaxError when on run), truncated arguments pass this step, causing errors downstream. On Mon, May 30,

import

Hello i'm not sure that is the right group but i try i use pyqt5 with eric i have two form in the first form i have add : from form_two import Form_two and for pass varible to second form i have add in the function def test(self) self.ft= Form_two() #so i can acces to Object in form_two

[issue27157] Unhelpful error message when one calls a subclass of type with a custom metaclass

Emanuel Barry added the comment: Fair enough. Should this get a note in What's new? Possibly in the "Changes in Python API" section. -- stage: patch review -> commit review versions: +Python 3.6 -Python 2.7, Python 3.4 ___ Python tracker

Re: Recommendation for Object-Oriented systems to study

On Monday, May 30, 2016 at 12:00:01 AM UTC+5:30, Terry Reedy wrote: > On 5/29/2016 1:49 PM, Michele Simionato wrote: > > On Sunday, May 29, 2016 at 4:42:17 PM UTC+2, Ankush Thakur wrote: > >> Hello, > >> > >> I'm a self-taught programmer who has managed to claw his way out of Python > >> basics

[issue27157] Unhelpful error message when one calls a subclass of type with a custom metaclass

Guido van Rossum added the comment: OK, the patch looks fine. Please treat this as a new feature (just in case) and only apply it to 3.6. -- ___ Python tracker

Re: Recommendation for Object-Oriented systems to study

On Monday, May 30, 2016 at 5:04:27 AM UTC+5:30, Gregory Ewing wrote: > Alan Evangelista wrote: > > > if the interest is learning OOP concepts (and not OOP in Python), IMHO > > Java is better. > > The problem with this is that if you're not careful you'll > end up learning a lot of cruft that is

Re: Recommendation for Object-Oriented systems to study

Hi Joseph, Thanks a lot for your help! At the moment, though, I find the idea of studying the standard library more lucrative. :) See you around! ~~Ankush On Sunday, May 29, 2016 at 9:31:26 PM UTC+5:30, Joseph Lee wrote: > Hi, > Replies inline. > > -Original Message- > From:

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

Emanuel Barry added the comment: New patch after Serhiy's comments. I kept the __dict__ in pickling to properly pickle attributes that aren't defined by 'partial' itself; but if 'func', 'args' or 'keywords' are present and don't match the provided arguments, an error will be raised, as it

[issue22558] Missing doc links to source code

Yoni Lavi added the comment: Ping. Please advise on next step to get this submitted. -- ___ Python tracker ___

[issue27160] str.format: Silent truncation of kwargs when passing keywords containing colons

Emanuel Barry added the comment: In other words, you cannot use keys containing a colon in str.format - you'll need to replace the colons by something else (for example an underscore, that works fine). -- nosy: +ebarry ___ Python tracker

Re: python parsing suggestion

> > Trying to extract the '1,1,114688:8192' pattern form the below output. > > pdb>stdout: > '3aae5d0-1: Parent Block for 1,1,19169280:8192 (block 1,1,114688:8192) > --\n3aae5d0-1: > magic 0xdeaff2fe mark_cookie > 0x\ngpal-3aae5d0-1: super.status > 3

[issue27160] str.format: Silent truncation of kwargs when passing keywords containing colons

Changes by Emanuel Barry : -- resolution: -> not a bug stage: -> resolved status: open -> closed ___ Python tracker ___

[issue27160] str.format: Silent truncation of kwargs when passing keywords containing colons

Changes by STINNER Victor : -- title: Silent truncation of kwargs when passing keywords containing colons -> str.format: Silent truncation of kwargs when passing keywords containing colons ___ Python tracker

[issue27160] Silent truncation of kwargs when passing keywords containing colons

STINNER Victor added the comment: IMHO the error is very explicit: Traceback (most recent call last): File "poc.py", line 6, in print(a.format(**r)) KeyError: 'HGNC' Your "r" directory has no "HGNC" key. I think that you misunderstood the formatting of str.format:

[issue27160] Silent truncation of kwargs when passing keywords containing colons

New submission from Kenneth Lim: Passing a dict with colon-containing keys as kwargs to a function results in a KeyError stemming from a silent truncation of the keys. Error does not clearly describe the issue in this case. -- components: Interpreter Core files: poc.py messages:

[issue27159] Python 3.5.1's websocket's lib crashes in event that internet connection stops.

ppperry added the comment: This issue should really be split into (at least) four seperate issues. The third problem (reloading relatively imported modules), can be done by doing `someclass = getattr(importlib.reload(sys.modules[someclass.__module__]),someclass.__name__)`. It also has

[issue27140] Opcode for creating dict with constant keys

Serhiy Storchaka added the comment: > Perhaps BUILD_CONST_KEY_MAP? LGTM. > Ideally the opcode could ellide the LOAD_CONST for the tuple. ie have > LOAD_CONST 2 (1, 2, 3), BUILD_CONST_KEY_MAP 3 be BUILD_CONST_KEY_MAP 2 (1, 2, > 3). However that'd require stack_effect to somehow lookup the

[issue27157] Unhelpful error message when one calls a subclass of type with a custom metaclass

Emanuel Barry added the comment: Yes, `metatype == _Type` makes sure that only `type` itself is valid for the one-argument part, whereas subclasses can also do so right now. I clarified that in a comment in the new patch, so that someone doesn't accidentally revert this, thinking

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

Changes by ppperry : -- title: functools.partial: Inconsistency between Python and C implementations -> Python implementation of `functools.partial` is not a class ___ Python tracker

[issue22331] test_io.test_interrupted_write_text() hangs on the buildbot FreeBSD 7.2

STINNER Victor added the comment: I also modified Python 3.6 to run each test file in a fresh process to avoid leaking too much things between tests, to isolate them better. -- ___ Python tracker

[issue22331] test_io.test_interrupted_write_text() hangs on the buildbot FreeBSD 7.2

STINNER Victor added the comment: When we talk about signals, we must always be careful of threads. Python unit tests are known (at least by me ;-)) to "leak" threads. IMO the first step to make the test more reliable is to start it in a fresh process to control exactly the number of threads.

[issue23680] Sporadic freeze in test_interrupted_write_retry_text

Martin Panter added the comment: I found a relatively recent case of this failing on a buildbot: http://buildbot.python.org/all/builders/AMD64%20FreeBSD%209.x%203.x/builds/4339/steps/test/logs/stdio == CPython 3.6.0a1+ (default:eaee5aed6fbc, May 27 2016, 05:52:21) [GCC 4.2.1 20070831 patched

[issue27140] Opcode for creating dict with constant keys

Demur Rumed added the comment: Perhaps BUILD_CONST_KEY_MAP? Ideally the opcode could ellide the LOAD_CONST for the tuple. ie have LOAD_CONST 2 (1, 2, 3), BUILD_CONST_KEY_MAP 3 be BUILD_CONST_KEY_MAP 2 (1, 2, 3). However that'd require stack_effect to somehow lookup the const tuple Thinking

[issue22331] test_io.test_interrupted_write_text() hangs on the buildbot FreeBSD 7.2

Martin Panter added the comment: This recently hung AMD64 FreeBSD 9.x 3.5. The stack trace was different, and there is only one thread: http://buildbot.python.org/all/builders/AMD64%20FreeBSD%209.x%203.5/builds/828/steps/test/logs/stdio [398/398] test_io Timeout (0:15:00)! Thread

[issue25566] asyncio reference cycles after ConnectionResetError

Sean Hunt added the comment: I am 1 of those people who want to handle the error with reconnect code as it happens when using discord.py when the stupid connection is aborted due to Cloudflare being stupid and them thinking a bot made in python is a DDoS like litterally. So, I know of this

[issue27159] Python 3.5.1's websocket's lib crashes in event that internet connection stops.

New submission from Sean Hunt: I know that websockets has a issue with when a internet connection is dropped and prints a bad traceback. However I have to manually recreate it when the exception happens which is a pain as when it does it crashes aiohttp sessions as well. Also I wonder how I

[issue27140] Opcode for creating dict with constant keys

Serhiy Storchaka added the comment: Proposed patch adds the BUILD_MAP_EX opcode (maybe somebody propose better name?). It takes values from the stack and keys from the tuple on the top of the stack. Currently it affects only creating a dict with const keys and calling a function with keywords

Re: re.search - Pattern matching review

On Sun, May 29, 2016 at 10:32 PM, Matt Wheeler wrote: > > > This doesn't seem to exactly match your code below, i.e. your code is > attempting to construct a tuple from groups 1 through 4. To meet this > specification I could just `return re.search('(?<=\(block >

[issue27157] Unhelpful error message when one calls a subclass of type with a custom metaclass

Eryk Sun added the comment: > why write `metatype == _Type` rather than > PyType_CheckExact(metatype)`? If only `type` should implement this special case, then it needs to be `metatype == _Type`. This was actually how it was implemented in 2.2a3:

python parsing suggestion

Hi , Trying to extract the '1,1,114688:8192' pattern form the below output. pdb>stdout: '3aae5d0-1: Parent Block for 1,1,19169280:8192 (block 1,1,114688:8192) --\n3aae5d0-1: magic 0xdeaff2fe mark_cookie 0x\ngpal-3aae5d0-1: super.status 3

[issue10908] Improvements to trace._Ignore

SilentGhost added the comment: I closed the issue because it's outdated: i) patch no longer applies cleanly; ii) changes to cmd line parsing where done in issue 22642; iii) remaining changes are largely cosmetic. As for issue 10896, a much more trivial patch would have to be produced against

[issue27152] Additional assert methods for unittest

Serhiy Storchaka added the comment: Changes in tests are provided as a demonstration that these methods are useful. I propose to commit only the unittest part, and use new methods on a case-by-case basis. For example some tests already define methods like assertHasAttr or assertIsSubclass,

[issue27125] Typo in Python 2 multiprocessing documentation

Serhiy Storchaka added the comment: I'm impressed by the number of duplicates left after all past cleanups. -- ___ Python tracker ___

ANN: SortedContainers 1.5.2 Released

Announcing the release of SortedContainers version 1.5.2 What is SortedContainers? - SortedContainers is an Apache2-licensed, pure-Python implementation of sorted list, sorted dict, and sorted set data types that is fast-as-C implementations with 100% code coverage and

[issue24671] idlelib 2.7: finish converting print statements

Terry J. Reedy added the comment: I no longer plan to backport enough patches to make further fixes worthwhile in the absence of otherwise working on a file. In the absence of adequate tests, there is also the non-0 chance of introducing bugs. -- assignee: -> terry.reedy resolution:

[issue27113] sqlite3 connect parameter "check_same_thread" not documented

Dave Sawyer added the comment: The revised patch says "connections" plural for true and "connection" singular for false. How about "the connection" since the method returns a connection. I'm wondering though about the lack of explanation or WHY for this parameter. As written it seems like the

[issue27156] IDLE: remove unused code

Roundup Robot added the comment: New changeset 0945b9729734 by Terry Jan Reedy in branch 'default': Issue #27156: Remove obsolete code not used by IDLE. https://hg.python.org/cpython/rev/0945b9729734 -- nosy: +python-dev ___ Python tracker