Dale added the comment:
I hit this on macOS today but I didn't get segmentation fault, at least not for
as long as I cared to let Python run. Instead I got a non-responsive Python
process using 100% CPU that I had to kill with ^\. I first hit this with GNU
readline while running P
New submission from Dale:
I get the response shown below when trying to use OpenGL. I have Python
2.5, PIL-1.1.6, and PyOpenGL 3.0 installed.
Any help would be greatly appreciated.
Thanks,
Dale
>>> from OpenGL.GLUT import *
Traceback (most recent call last):
File "", l
New submission from Dale:
I'm trying 3.6b4 on my mac (OS X 10.10.5) and when I run the following code
(after doing pip install numpy and pandas) I see a 'SystemError':
>>> import pandas as pd
>>> pd.to_datetime('10/31/2016')
ValueError: Error parsing
Dale added the comment:
Thanks for the quick response!
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Darren Dale added the comment:
Any additional comments?
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Darren Dale added the comment:
It would be nice if this patch could be merged in time for python-3.3...
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Darren Dale added the comment:
I just double-checked that the unit tests do not raise any warnings with this
patch.
Can it be merged?
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Darren Dale added the comment:
I'll bump this one last time.
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Darren Dale added the comment:
Here is a new patch addressing comments raised in review. It supersedes
previous patch submissions.
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Darren Dale added the comment:
Patch addressing latest comments in review. Notable change: defines
_PyObject_IsAbstract in object.c/object.h, rather than repeating the code in
multiple files and functions.
--
Added file: http://bugs.python.org/file23857/abc_descriptor.patch
Darren Dale added the comment:
New patch addressing comments in review.
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Darren Dale added the comment:
Is this patch ready to go? I haven't heard any feedback on the most recent
version.
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Darren Dale added the comment:
Thank you for the suggestion. I will follow up at python-dev, but it will
probably be a few weeks before I have time to do a proper job of it.
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Darren Dale added the comment:
I posted the following at python-dev
(http://mail.python.org/pipermail/python-dev/2011-June/111837.html):
I would like to try to address some shortfalls with the way python deals with
abstract base classes containing descriptors. I originally was just concerned
Darren Dale added the comment:
Here is an improved patch, which includes feedback from python-dev. "make test"
runs without failures, however test_abc.py prints deprecation warnings for
abstractproperty. I'm not familiar with the protocol here, do we continue to
include
Changes by Darren Dale :
Removed file: http://bugs.python.org/file22322/abc_descriptors.patch
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Added file: http://bugs.python.org/file22323/abc_descriptors.patch
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Changes by Darren Dale :
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Darren Dale added the comment:
On Sat, Jun 11, 2011 at 3:11 AM, Daniel Urban wrote:
>
> Daniel Urban added the comment:
>
> It doesn't work with staticmethod:
>
>>>> import abc
>>>>
>>>> class C(metaclass=abc.ABCMeta):
> ... @sta
Darren Dale added the comment:
[...]
>> Traceback (most recent call last):
>> File "", line 1, in
>> TypeError: Can't instantiate abstract class D with abstract methods
>> foo.__func__
>
> You still need to use @abc.abstractstaticmethod.
Thinkin
Darren Dale added the comment:
On Sat, Jun 11, 2011 at 8:55 AM, Nick Coghlan wrote:
>
> Nick Coghlan added the comment:
>
> inspect.getattr_static has the necessary logic to search for descriptors
> without invoking them.
Unfortunately, we can't import inspect, even in
Darren Dale added the comment:
[...]
>
> This wouldn't allow for the prettier error messages, but it's much cleaner
> than having ABCMeta trawling through class attribute dir() lists.
I think there is another reason to do it this way. Suppose I have a
custom descriptor MyP
Darren Dale added the comment:
On Sat, Jun 11, 2011 at 7:32 PM, Eric Snow wrote:
>
> Eric Snow added the comment:
> Per your last message, if a specific descriptor has an abstract setter then
> the descriptor should be considered abstract. If the implementation of that
> att
Darren Dale added the comment:
Here is attempt #4. This patch extends the property, classmethod and
staticmethod builtins with an __isabstractmethod__ descriptor. Docs and tests
are updated as well. "make test" runs without failures. This is my first real
attempt with the C-API, a
Changes by Darren Dale :
Removed file: http://bugs.python.org/file21307/issue11610.patch
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Removed file: http://bugs.python.org/file21375/issue11610_v2.patch
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Removed file: http://bugs.python.org/file22323/abc_descriptors.patch
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Darren Dale added the comment:
I've requested additional feedback based on comments at Rietveld.
--
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Darren Dale added the comment:
Here is a new version of the patch, addressing points raised in the review of
the previous version.
--
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New submission from Darren Dale :
Old-style relative imports have been strongly discouraged in some sections of
the python documentation. This was discussed on the python-dev mailing list.
Executive summary: "The issue is implementing a PEP with nice support for
relative imports, and
New submission from Darren Dale :
I posted a suggestion at python-ideas that the declaration of abstract
properties could be improved in such a way that they could be declared with
either the long-form or decorator syntax using the built-in property and
abc.abstractmethod:
{{{
class
Darren Dale added the comment:
The discussion on python-ideas:
http://mail.python.org/pipermail/python-ideas/2011-March/009411.html
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Darren Dale added the comment:
Here is a new patch that addresses a couple problems found in review:
* Unit tests contained a typo (Property instead of property)
* DeprecationWarning would be issued when importing abc rather than when
creating abstractproperty. (whether abstractproperty
Darren Dale added the comment:
On Sun, Mar 20, 2011 at 5:18 AM, Daniel Urban wrote:
>
> Daniel Urban added the comment:
>
> I tried to test your patch, but the build dies with this error:
> Fatal Python error: Py_Initialize: can't initialize sys standard streams
> Trac
Darren Dale added the comment:
On Sun, Mar 20, 2011 at 12:19 PM, Benjamin Peterson
wrote:
>
> Benjamin Peterson added the comment:
>
> I think a better idea would be to override getter and friends on the
> abstractproperty class.
I just suggested the same at python-ideas.
Darren Dale added the comment:
On Sun, Mar 20, 2011 at 5:18 AM, Daniel Urban wrote:
>
> Daniel Urban added the comment:
>
> I tried to test your patch, but the build dies with this error:
> Fatal Python error: Py_Initialize: can't initialize sys standard streams
> Trac
Darren Dale added the comment:
Thank you Daniel and Benjamin for the helpful feedback. I think the attached
patch is a much better approach. It only touches abc.abstractproperty (instead
of the builtin property), and uses a class method as a factory to return
instances of either property or
Changes by Darren Dale :
Removed file:
http://bugs.python.org/file21293/property_with_abstractmethod.patch
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Darren Dale added the comment:
Here is a new version of the patch. I think it addresses all of the issues that
have been raised to date.
I had to comment out the -lintl line in Modules/Setup to build on OS X, this
seems to be a similar issue to http://bugs.python.org/issue6154 . So I don&#
Darren Dale added the comment:
(Ned, I'm running 10.6.6 with a 64-bit kernel. I've tried running ./configure
without any arguments, and also with --prefix=/opt/local, since I install
essentially everything with MacPorts.)
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Darren Dale added the comment:
Benjamin: have you thought this idea through?
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Darren Dale added the comment:
I see some problems with this approach, but maybe I haven't fully appreciated
it. Let me summarize the goals and constraints as I see them:
1) compatible with long-form and decorator syntax of {abstract}property
declaration
2) backwards compatible, no chan
Darren Dale added the comment:
On Tue, Mar 29, 2011 at 9:31 PM, Benjamin Peterson
wrote:
> 2011/3/29 Darren Dale :
>> The benefit of abstractproperty.abstract{...} is that one decorator is
>> required instead of two, right? Are there others?
>
> Mostly it doesn'
Darren Dale added the comment:
On Tue, Mar 29, 2011 at 10:24 PM, Darren Dale wrote:
>
> Darren Dale added the comment:
>
> On Tue, Mar 29, 2011 at 9:31 PM, Benjamin Peterson
> wrote:
>> 2011/3/29 Darren Dale :
>>> The benefit of abstractproperty.abstract
Darren Dale added the comment:
So, are there objections to this patch, or can it be merged?
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Darren Dale added the comment:
I think I have a similar situation:
C:\Py\Scripts\foo
---
if __name__ == '__main__':
import bar
bar.main()
C:\Py\Lib\site-packages\bar.py
---
from multiprocessing import Pool
def task(arg):
return arg
def main():
pool = Pool
Darren Dale added the comment:
Is there anything preventing this patch from being merged?
--
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Darren Dale added the comment:
On Sat, May 14, 2011 at 12:20 PM, Benjamin Peterson
wrote:
>
> Benjamin Peterson added the comment:
>
> 2011/5/14 Darren Dale :
>>
>> Darren Dale added the comment:
>>
>> Is there anything preventing this patch from bein
Darren Dale added the comment:
On Sat, May 14, 2011 at 4:28 PM, Benjamin Peterson
wrote:
>
> Benjamin Peterson added the comment:
>
> I still dislike the reduntancy of having abstractmethod and abstractproperty
> on a method. I think a better idea is having
> abstrac
Darren Dale added the comment:
On Sat, May 14, 2011 at 5:17 PM, Benjamin Peterson
wrote:
>
> Benjamin Peterson added the comment:
>
> 2011/5/14 Darren Dale :
>>
>> Darren Dale added the comment:
>>
>> On Sat, May 14, 2011 at 4:28 PM, Benjamin Peterson
Darren Dale added the comment:
On Sat, May 14, 2011 at 5:55 PM, Benjamin Peterson
wrote:
>
> Benjamin Peterson added the comment:
>
> Okay: how about this. We retain the passing of @abstractmethod to
> abstractpropert(), but @abstractgetter decorates the method for you.
Darren Dale added the comment:
On Sat, May 14, 2011 at 6:24 PM, Benjamin Peterson
wrote:
>
> Benjamin Peterson added the comment:
>
> 2011/5/14 Darren Dale :
>>
>> Darren Dale added the comment:
>>
>> It definitely is a common case, and alwa
Darren Dale added the comment:
It just occurred to me, there is a potential problem with abstractproperty and
the decorator syntax in my patch:
class Foo:
@abstractproperty
def p(self): pass
# p is abstract, but has no abstract methods
@p.setter
def p(self, val): pass
New submission from Dale Visser :
Alternative version of Filterer.filter(...) would look like this, which takes
advantage of efficient Python 3.x built-ins, and is immediately understandable:
def _filter_callable(filter):
return filter.filter if hasattr(filter, 'filter') else f
Change by Dale Visser :
--
keywords: +patch
pull_requests: +13570
stage: -> patch review
pull_request: https://github.com/python/cpython/pull/13683
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Dale Visser added the comment:
Great! My PR now uses getattr as @zach.ware has suggested.
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Dale Visser added the comment:
It is with great surprise and sadness that I report that I found that
performance measurements don't support merging this change. I'm attaching my
performance test script. I ran it with/without the logging filters for 100
iterations, e.g., ./
Dale Visser added the comment:
Correction on that example of running the test script:
./python test_filter_perf.py all 100
I simply prepended this with the Linux `time` command for measuring.
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Dale Visser added the comment:
Adding the patch file associated with GitHub pull request #13683, as well as
the performance test I just reported.
--
Added file: https://bugs.python.org/file48383/pr13683.diff
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Dale Visser added the comment:
FWIW, when I tried this instead, I got 21 to 22 msec per 1000 log messages
(still a 5-10% performance hit):
def filter(self, record):
rv = True
if self.filters:
rv = all(getattr(f, 'filter', f)(record) for f in self.filters)
re
Dale Visser added the comment:
I've learned a lot about the performance trade-offs of generator expressions.
The only way of shortening this code (readability is subjective) that I've
found not to negatively impact performance is this:
def filter(self, record):
New submission from Dale Smith:
When I click install -> run, it tells me a DLL is missing and to contact my
vendor (Windows 7 Home Premium).
This is the only installation that does this. I cannot find an answer anywhere
and all other installations work fine. What could be causing t
Dale Smith added the comment:
http://www.python.org/ftp/python/2.7.5/python-2.7.5.msi
That is the URL I downloaded from and the installer.
Thank you,
Dale
On 7/4/2013 4:17 PM, R. David Murray wrote:
> R. David Murray added the comment:
>
> Exactly which installer are you trying t
Dale Smith added the comment:
Was that all the correct information? Do you need more... i.e. about my
computer etc?
On 7/4/2013 4:17 PM, R. David Murray wrote:
> R. David Murray added the comment:
>
> Exactly which installer are you trying to run and where did you download i
Dale Smith added the comment:
I do see install and it tries to install. When I click "run" and go to
the install menu, I select for "All users" and next and the generic "a
dll is missing" message pops up. I'll explore this more. I do not
have problems i
Dale Smith added the comment:
I tried everything that is available to "repair" my Windows 7 installer
(unregistered/restarted the service etc). Everything installs fine
except this installer.
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Dale Smith added the comment:
I do not know when but there is a version that seems to be installed.
It's in my programs folder. I opened the python shell and it says it is
Python 2.7.3 (default, Apr 10 2012, 23:31:26) [MSC v.1500 32 bit
(Intel)] on win32
It still does not explain th
Dale Smith added the comment:
Has anyone figured out what is causing this failure from my windows 7?
Thank you.
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Dale Smith added the comment:
I have redownloaded. Still getting the same message. Thank you.
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Dale Smith added the comment:
I got it! None of these alone actually worked. But it lead me to get
it to work. I did several solutions at once. The three in combination
that worked were getting this:
http://www.howtogeek.com/howto/windows-vista/add-take-ownership-to-explorer-right-click
Darren Dale added the comment:
Quoting the documentation for abstractmethod:
"When abstractmethod() is applied in combination with other method descriptors,
it should be applied as the innermost decorator, as shown in the following
usage examples:"
The examples include static
Darren Dale added the comment:
There is a very practical reason, which was the whole point of issue11610.
Descriptors are should declare themselves abstract when they are composed of
abstract methods. If you have a property with an concrete getter but an
abstract setter, the property should
Changes by Dale Nagata :
Removed file: http://bugs.python.org/file14365/testlog.py
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Changes by Dale Nagata :
Added file: http://bugs.python.org/file14366/testlog.py
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New submission from Dale Nagata :
Traceback (most recent call last):
File "C:\python24\lib\logging\handlers.py", line 74, in emit
self.doRollover()
File "C:\python24\lib\logging\handlers.py", line 271, in doRollover
os.rename(self.baseFilename, dfn)
OSError: [
Dale E. Moore added the comment:
On Ubuntu 12.10 with Unity the task icon is a question mark. And when locked to
launcher the button does not start idle.
--
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