[issue19087] bytearray front-slicing not optimized
Serhiy Storchaka added the comment: I don't see much sense in differences between bytea_slice2.patch and bytea_slice3.patch, because bytea_slice3.patch is not smaller and simpler than bytea_slice2.patch. I meant that you can continue use self-ob_bytes instead of PyByteArray_AS_STRING(self) if self-ob_bytes points not to the start of physical buffer, but to the start of logical byte array. *This* will simplify the patch a lot. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19087 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19156] Enum helper functions test-coverage
Changes by Ethan Furman et...@stoneleaf.us: -- assignee: - ethan.furman nosy: +ethan.furman stage: - patch review ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19156 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19159] 2to3 incorrectly converts two parameter unicode() constructor to str()
Serhiy Storchaka added the comment: This is not a bug, str accepts the encoding argument in Python 3. And in contrast to the decode method it works with arbitrary byte-like objects (i.e. array.array). -- nosy: +serhiy.storchaka ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19159 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19087] bytearray front-slicing not optimized
Antoine Pitrou added the comment: I meant that you can continue use self-ob_bytes instead of PyByteArray_AS_STRING(self) if self-ob_bytes points not to the start of physical buffer, but to the start of logical byte array. *This* will simplify the patch a lot. It will make the diff smaller but it will not simplify the patch. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19087 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue10049] Add a no-op (null) context manager to contextlib
Changes by Piotr Dobrogost p...@bugs.python.dobrogost.net: -- nosy: +piotr.dobrogost ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10049 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue1673203] add identity function
Changes by Piotr Dobrogost p...@bugs.python.dobrogost.net: -- nosy: +piotr.dobrogost ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue1673203 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue11011] More functools functions
Changes by Piotr Dobrogost p...@bugs.python.dobrogost.net: -- nosy: +piotr.dobrogost ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue11011 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19161] collections Counter handles nan strangely
New submission from Adam Davison:
If you pass an array containing nan to collections.Counter, rather than
counting the number of 'nan's it outputs 'nan': 1 n times into the
dictionary. I appreciate using this on an array of floats is a bit of an
unusual case but I don't think this is the expected behaviour based on the
documentation.
To reproduce, try e.g.:
a = [1, 1, 1, 2, 'nan', 'nan', 'nan']
collections.Counter(map(float, a))
Based on the documentation I expected to see:
{1.0: 3, 2.0: 1, nan: 3}
But it actually returns:
{1.0: 3, 2.0: 1, nan: 1, nan: 1, nan: 1}
Presumably this relates to the fact that nan != nan. I'm not 100% sure if this
is a bug or maybe just something that should be mentioned in the
documentation... Certainly it's not what I wanted it to do :)
Thanks,
Adam
--
components: Library (Lib)
messages: 198938
nosy: Adam.Davison
priority: normal
severity: normal
status: open
title: collections Counter handles nan strangely
type: behavior
versions: Python 2.7
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[issue19161] collections Counter handles nan strangely
Mark Dickinson added the comment:
Presumably this relates to the fact that nan != nan.
Yep. What you're seeing is pretty much expected behaviour, and it matches how
NaNs behave with respect to containment in other Python contexts:
x = float('nan')
y = float('nan')
s = {x}
x in s
True
y in s
False
There's a much-discussed compromise between object model sanity and respect for
IEEE 754 here. You can find the discussions on the mailing lists, but the
summary is that this isn't going to change in a hurry.
One way you can work around this is to make sure you only have single NaN
object (possibly referenced multiple times) in your list. Then you get the
behaviour that you're looking for:
nan = float('nan')
a = [1, 1, 2, nan, nan, nan]
collections.Counter(a)
Counter({nan: 3, 1: 2, 2: 1})
By the way, when you say 'array of floats', do you mean a NumPy ndarray, a
standard library array.array object, or a plain Python list? The example you
show is a list containing a mixture of ints and strings.
I suggest closing this as 'wont fix'. Raymond?
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[issue19161] collections Counter handles nan strangely
Adam Davison added the comment: Thanks for the quick response. I'm really using a pandas Series, which is effectively a numpy array behind the scenes as far as I understand, the example I pasted was just to illustrate the behaviour. So the nans are being produced elsewhere, I don't really have control over that step. It seems like perhaps collections.Counter should handle nans as a special case. But I can appreciate the counter-arguments too. Thanks, Adam -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19161 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19162] datetime.datetime.min.strftime('%Y') not working
New submission from Filip Zyzniewski:
The datetime class provides a min datetime object which is not formattable:
on Python 2:
$ python
Python 2.7.3 (default, Apr 10 2013, 05:13:16)
[GCC 4.7.2] on linux2
Type help, copyright, credits or license for more information.
import datetime
datetime.datetime.min.strftime('%Y')
Traceback (most recent call last):
File stdin, line 1, in module
ValueError: year=1 is before 1900; the datetime strftime() methods require year
= 1900
and on Python 3:
$ python3
Python 3.2.3 (default, Apr 10 2013, 05:07:54)
[GCC 4.7.2] on linux2
Type help, copyright, credits or license for more information.
import datetime
datetime.datetime.min.strftime('%Y')
Traceback (most recent call last):
File stdin, line 1, in module
ValueError: year=1 is before 1000; the datetime strftime() methods require year
= 1000
It seems to me that either datetime.datetime.min.year should be increased to
1900/1000 or strftime should be able to format year=1 - it is strange that the
API doesn't support its own constants.
--
components: Library (Lib)
messages: 198941
nosy: filip.zyzniewski
priority: normal
severity: normal
status: open
title: datetime.datetime.min.strftime('%Y') not working
type: behavior
versions: Python 2.7, Python 3.2
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[issue19163] PyString_Format with dict
New submission from hiroaki itoh: http://docs.python.org/2.7/c-api/string.html#PyString_Format The documents says `The args argument must be a tuple.', But if format is like '%(key)s', PyString_Format claims args must be mapping protocol. (At least 2.7.3.) -- assignee: docs@python components: Documentation messages: 198942 nosy: docs@python, xwhhsprings priority: normal severity: normal status: open title: PyString_Format with dict type: behavior versions: Python 2.7 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19163 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19164] Update uuid.UUID TypeError exception: integer should not be an argument.
New submission from Marco Buccini:
When you try to use uuid.UUID() without arguments you get a TypeError exception
saying that you can actually use an integer (while you cannot).
Python 2.6.8 (default, Apr 26 2013, 16:24:53)
[GCC 4.6.3] on linux2
uuid.UUID()
Traceback (most recent call last):
File stdin, line 1, in module
File /usr/lib/python2.6/uuid.py, line 129, in __init__
raise TypeError('need one of hex, bytes, bytes_le, fields, or int')
TypeError: need one of hex, bytes, bytes_le, fields, or int
uuid.UUID(uuid.uuid4().int)
Traceback (most recent call last):
File stdin, line 1, in module
File /usr/lib/python2.6/uuid.py, line 131, in __init__
hex = hex.replace('urn:', '').replace('uuid:', '')
AttributeError: 'long' object has no attribute 'replace'
So, let's check with an integer - maybe an int has 'replace'.
uuid.UUID(1231231)
Traceback (most recent call last):
File stdin, line 1, in module
File /usr/lib/python2.6/uuid.py, line 131, in __init__
hex = hex.replace('urn:', '').replace('uuid:', '')
AttributeError: 'int' object has no attribute 'replace'
No, it doesn't. Anyway, with a propery hex value, it works (of course!).
uuid.UUID(uuid.uuid4().hex)
UUID('89b1283d-c32e-4b8a-a9e3-a699445fdd4d')
--
assignee: docs@python
components: Documentation
messages: 198943
nosy: docs@python, makronized
priority: normal
severity: normal
status: open
title: Update uuid.UUID TypeError exception: integer should not be an argument.
type: behavior
versions: Python 2.6
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[issue19162] datetime.datetime.min.strftime('%Y') not working
tomasz.zaleski added the comment:
works correctly on python3.3:
Python 3.3.2 (default, Oct 4 2013, 12:21:07)
[GCC 4.2.1 20070831 patched [FreeBSD]] on freebsd9
Type help, copyright, credits or license for more information.
import datetime
datetime.datetime.min.strftime('%Y')
'0001'
issue on 2.7:
Python 2.7.5 (default, Sep 17 2013, 12:11:31)
[GCC 4.2.1 20070831 patched [FreeBSD]] on freebsd9
Type help, copyright, credits or license for more information.
import datetime
datetime.datetime.min.strftime('%Y')
Traceback (most recent call last):
File stdin, line 1, in module
ValueError: year=1 is before 1900; the datetime strftime() methods require year
= 1900
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[issue19153] Embedding into a shared library fails again
Antoine Pitrou added the comment: No custom builds. Every package from ubuntu repository. Psycopg2 installed by pip You may have to rebuild packages using the custom Python, not the system Python, since the linker options have to be different (especially the shared part: Ubuntu's Python is a static build, not a shared library build). Or perhaps you can dlopen the CPython shared library with the RTLD_GLOBAL flag. I don't know. I don't know if this is something that we can alleviate in Python itself. -- nosy: +doko, pitrou, sandro.tosi versions: +Python 3.3, Python 3.4 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19153 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19164] Update uuid.UUID TypeError exception: integer should not be an argument.
Vajrasky Kok added the comment:
The exception message is correct. You can give an integer argument. But you
have to use keyword argument.
uuid.UUID(int=uuid.uuid4().int)
UUID('62ad61e5-b492-4f01-81e6-790049051c4f')
From the documentation:
__init__(self, hex=None, bytes=None, bytes_le=None, fields=None, int=None, v
ersion=None)
| Create a UUID from either a string of 32 hexadecimal digits,
| a string of 16 bytes as the 'bytes' argument, a string of 16 bytes
| in little-endian order as the 'bytes_le' argument, a tuple of six
| integers (32-bit time_low, 16-bit time_mid, 16-bit time_hi_version,
| 8-bit clock_seq_hi_variant, 8-bit clock_seq_low, 48-bit node) as
| the 'fields' argument, or a single 128-bit integer as the 'int'
| argument. When a string of hex digits is given, curly braces,
| hyphens, and a URN prefix are all optional. For example, these
| expressions all yield the same UUID:
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[issue19161] collections Counter handles nan strangely
Mark Dickinson added the comment: perhaps collections.Counter should handle nans as a special case I don't think that would be a good idea: I'd rather that collections.Counter didn't special case NaNs in any way, but instead treated NaNs following the same (admittedly somewhat awkward) rules that all the other Python collections do---namely, for NaNs, containment effectively works by object identity. I'm really using a pandas Series Okay, that makes sense. It's a bit unfortunate that NumPy creates a new NaN object every time you read a NaN value out of an array, so that you get e.g., from numpy import array, nan, isnan import numpy as np my_list = [1.2, 2.3, np.nan, np.nan] my_list[2] is my_list[3] True my_array = np.array(my_list) my_array[2] is my_array[3] False Or even: my_array[2] is my_array[2] False I guess you're stuck with using Pandas functionality like `dropna` and `isnull` to deal with missing and non-missing values separately. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19161 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19158] BoundedSemaphore.release() subject to races
Richard Oudkerk added the comment: Is BoundedSemaphore really supposed to be robust in the face of too many releases, or does it just provide a sanity check? I think that releasing a bounded semaphore too many times is a programmer error, and the exception is just a debugging aid for the programmer. Raising an exception 99% of the time should be sufficient for that purpose. -- nosy: +sbt ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19158 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19155] Display stack info with color in pdb (the w command)
R. David Murray added the comment: I think we are unlikely to do this, as pdb is a very simple text interface. I'm sure a patch would be considered if one was offered, but the increase in complexity of the codebase would need to be minimal for it to be accepted, and I suspect the feature would need to be off by default. -- nosy: +r.david.murray ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19155 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19155] Display stack info with color in pdb (the w command)
Ezio Melotti added the comment: Agreed with David. You can use https://bitbucket.org/antocuni/pdb/src instead. -- nosy: +ezio.melotti resolution: - rejected stage: - committed/rejected status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19155 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19162] datetime.datetime.min.strftime('%Y') not working
R. David Murray added the comment: Indeed, this is already fixed. This issue is a duplicate of issue 1777412. The bug will not be fixed in earlier versions for the reasons discussed in that issue. -- nosy: +r.david.murray resolution: - duplicate stage: - committed/rejected status: open - closed superseder: - datetime.strftime dislikes years before 1900 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19162 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue14455] plistlib unable to read json and binary plist files
Ronald Oussoren added the comment: I'd really like to include this patch in 3.4, but haven't managed to do any opensource work in the previous period and don't know when I'll be able to actually commit this (and more importantly, be available when issues crop up) :-( -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue14455 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue16803] Make test_importlib run tests under both _frozen_importlib and importlib._bootstrap
Brett Cannon added the comment:
It looks like as long as you block _frozen_importlib and do a fresh import of
importlib you can make sure to use the source version of importlib._bootstrap
instead of _frozen_importlib.
from test.support import import_fresh_module
mod = import_fresh_module('importlib.abc', fresh=('importlib',),
blocked=('_frozen_importlib',))
mod
module 'importlib.abc' from
'/Users/bcannon/Repositories/cpython/default/Lib/importlib/abc.py'
mod._bootstrap
module 'importlib._bootstrap' from
'/Users/bcannon/Repositories/cpython/default/Lib/importlib/_bootstrap.py'
mod._frozen_importlib
import importlib
importlib._bootstrap
module 'importlib._bootstrap' (frozen)
mod2 = import_fresh_module('importlib', blocked=('_frozen_importlib',))
mod2
module 'importlib' from
'/Users/bcannon/Repositories/cpython/default/Lib/importlib/__init__.py'
mod2._bootstrap
module 'importlib._bootstrap' from
'/Users/bcannon/Repositories/cpython/default/Lib/importlib/_bootstrap.py'
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[issue16803] Make test_import test_importlib run tests under both _frozen_importlib and importlib._bootstrap
Changes by Brett Cannon br...@python.org: -- title: Make test_importlib run tests under both _frozen_importlib and importlib._bootstrap - Make test_import test_importlib run tests under both _frozen_importlib and importlib._bootstrap ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue16803 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19163] PyString_Format with dict
Roundup Robot added the comment: New changeset 405245885569 by Benjamin Peterson in branch '2.7': dict is also allowed (closes #19163) http://hg.python.org/cpython/rev/405245885569 -- nosy: +python-dev resolution: - fixed stage: - committed/rejected status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19163 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19164] Update uuid.UUID TypeError exception: integer should not be an argument.
Georg Brandl added the comment: Yeah, the first message should probably say one of the hex, bytes, bytes_le, fields, or int arguments must be given -- nosy: +georg.brandl ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19164 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18716] Deprecate the formatter module
Changes by Brett Cannon br...@python.org: -- resolution: - fixed stage: test needed - committed/rejected status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18716 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18716] Deprecate the formatter module
Roundup Robot added the comment: New changeset 04ff1cc40d62 by Brett Cannon in branch 'default': Issue #18716: Deprecate the formatter module http://hg.python.org/cpython/rev/04ff1cc40d62 -- nosy: +python-dev ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18716 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19165] Change formatter warning to DeprecationWarning in 3.5
Changes by Brett Cannon br...@python.org: -- assignee: brett.cannon components: Library (Lib) nosy: brett.cannon priority: normal severity: normal status: open title: Change formatter warning to DeprecationWarning in 3.5 versions: Python 3.5 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19165 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19166] Unusued variable in test_keys in Lib/test/test_dict.py
New submission from Vajrasky Kok:
This is the test.
def test_keys(self):
d = {}
self.assertEqual(set(d.keys()), set())
d = {'a': 1, 'b': 2}
k = d.keys()
self.assertIn('a', d)
self.assertIn('b', d)
self.assertRaises(TypeError, d.keys, None)
self.assertEqual(repr(dict(a=1).keys()), dict_keys(['a']))
As you can see, the variable k is never used. Attached the patch to give
purpose to variable k.
--
components: Tests
files: fix_test_dict_unused_variable.patch
keywords: patch
messages: 198957
nosy: vajrasky
priority: normal
severity: normal
status: open
title: Unusued variable in test_keys in Lib/test/test_dict.py
versions: Python 3.4
Added file: http://bugs.python.org/file31958/fix_test_dict_unused_variable.patch
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[issue16803] Make test_import test_importlib run tests under both _frozen_importlib and importlib._bootstrap
Brett Cannon added the comment: Turns out this isn't as clean-cut as simply using test.support.import_fresh_module() as you end up with different instances of importlib._bootstrap which kills any possible subclass checks, etc. between e.g. importlib.abc and importlib.machinery as the source versions will have different instances of importlib._bootstrap. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue16803 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue6028] Interpreter aborts when chaining an infinite number of exceptions
Changes by Jesús Cea Avión j...@jcea.es: -- nosy: +jcea ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue6028 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19158] BoundedSemaphore.release() subject to races
Tim Peters added the comment: Richard, that's a strange argument ;-) Since, e.g., a BoundedSemaphore(1) is semantically equivalent to a mutex, it's like saying some_mutex.release() usually raises an exception if the mutex isn't held at the time - but maybe it won't. If the docs _say_ it's not reliable, fair enough. But they don't say that. When a thread gimmick is _intended_ to be probabilistic, the docs say so (e.g., Queue.qsize()). Probably would have been better if a bounded=False optional argument to Semaphore.__init__() had been added, rather than creating a new BoundedSemaphore class. But, as is, it could easily be made reliable: 1. Change Semaphore's condition variable to use an RLock (instead of the current Lock). 2. Stuff the body of BoundedSemaphore.release() in a `with self._cond:` block. Curiously, there doesn't appear to be a test that BoundedSemaphore.release ever raises ValueError. So I'll readily agree that nobody ever took this seriously ;-) -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19158 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue16803] Make test_import test_importlib run tests under both _frozen_importlib and importlib._bootstrap
Roundup Robot added the comment: New changeset f0416b2b5654 by Brett Cannon in branch 'default': Issue #16803: Run test.test_importlib.test_abc under both http://hg.python.org/cpython/rev/f0416b2b5654 -- nosy: +python-dev ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue16803 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19153] Embedding into a shared library fails again
Rinat added the comment:
Or perhaps you can dlopen the CPython shared library with the RTLD_GLOBAL
flag. I don't know.
Yes, it works. I made it is my shared library before boost block like this
{
void* handle = dlopen(libpython2.7.so, RTLD_LAZY | RTLD_GLOBAL);
// boost wrapper for python call
dlclose(handle);
}
I think if nothing helps, i'll put this code into __attribute__((ctor|dtor))
functions
Thanks a lot
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[issue16195] Difficult or impossible to figure out how garbage collector and weak references should interact for user-defined extension types
Changes by Phil Connell pconn...@gmail.com: -- nosy: +pconnell ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue16195 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19153] Embedding into a shared library fails again
Antoine Pitrou added the comment: Ok, making it a documentation issue in case it deserves clarification in the docs. -- assignee: - docs@python components: +Documentation -Library (Lib) nosy: +docs@python ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19153 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19119] duplicate test name in Lib/test/test_heapq.py
STINNER Victor added the comment: @Xavier de Gaye: Nice, you found many similar issues. How did you find them? Would it be possible to automate the detection of duplicated test names? -- nosy: +haypo ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19119 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19167] sqlite3 cursor.description varies across Linux (3.3.1), Win32 (3.3.2), when selecting from a view.
New submission from mpb:
On Win32, when I select from an SQLite view, and enclose the column name in
double quotes in the select query, the cursor description (erroneously?)
contains the double quotes.
On Linux (or on Win32 when selecting from a table rather than a view) the
cursor description does not contain the double quotes. I expect the Linux
behavior, not the Win32 behavior.
The following code demonstrates the problem.
import sqlite3, sys
print (sys.platform)
print (sys.version)
conn = sqlite3.connect (':memory:')
cur = conn.cursor ()
cur.execute ('create table Foo ( foo_id integer primary key ) ;')
cur.execute ('create view Foo_View as select * from Foo ;')
cur.execute ('select foo_id from Foo;')
print (cur.description[0][0])
cur.execute ('select foo_id from Foo;')
print (cur.description[0][0])
cur.execute ('select foo_id from Foo_View;')
print (cur.description[0][0])
cur.execute ('select foo_id from Foo_View;')
print (cur.description[0][0])
Sample output on Linux and Win32.
linux
3.3.1 (default, Apr 17 2013, 22:32:14)
[GCC 4.7.3]
foo_id
foo_id
foo_id
foo_id
win32
3.3.2 (v3.3.2:d047928ae3f6, May 16 2013, 00:03:43) [MSC v.1600 32 bit (Intel)]
foo_id
foo_id
foo_id
foo_id
Above, please note the (erroneous?) double quotes around the final foo_id.
--
components: Library (Lib)
messages: 198964
nosy: mpb
priority: normal
severity: normal
status: open
title: sqlite3 cursor.description varies across Linux (3.3.1), Win32 (3.3.2),
when selecting from a view.
type: behavior
versions: Python 3.3
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[issue18679] include a codec to handle escaping only control characters but not any others
Derek Wilson added the comment:
Any update on this? Just so you can see what my work around is, I'll paste in
the code I'm using. The major issue I have with this is that performance
doesn't scale to large strings.
This is also a bytes-to-bytes or str-to-str encoding, because this is the type
of operation that one plans to do with the data one has.
Having a full fledged streaming codec to handle this would be very helpful when
writing applications that stream tab and newline separated utf-8 data over
stdin/stdout.
text_types = (str, )
escape_tm = dict((k, repr(chr(k))[1:-1]) for k in range(32))
escape_tm[0] = '\0'
escape_tm[7] = '\a'
escape_tm[8] = '\b'
escape_tm[11] = '\v'
escape_tm[12] = '\f'
escape_tm[ord('\\')] = ''
def escape_control(s):
if isinstance(s, text_types):
return s.translate(escape_tm)
else:
return s.decode('utf-8',
'surrogateescape').translate(escape_tm).encode('utf-8', 'surrogateescape')
def unescape_control(s):
if isinstance(s, text_types):
return s.encode('latin1', 'backslashreplace').decode('unicode_escape')
else:
return s.decode('utf-8', 'surrogateescape').encode('latin1',
'backslashreplace').decode('unicode_escape').encode('utf-8', 'surrogateescape')
--
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[issue19159] 2to3 incorrectly converts two parameter unicode() constructor to str()
Gregory P. Smith added the comment: Correct, my characterization above was wrong (I shouldn't write these up without the interpreter right in front of me). What is wrong with the conversion is: unicode(, utf-8) in python 2.x should become either str(b, utf-8) or, better, just in Python 3.x. The better version could be done if the codec and value can be represented in the encoding of the output 3.x source code file as is but that optimization is not critical. In order for str() to take a second arg (the codec) the first cannot be a unicode string already: str(foo, utf-8) Traceback (most recent call last): File stdin, line 1, in module TypeError: decoding str is not supported -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19159 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19119] duplicate test name in Lib/test/test_heapq.py
Xavier de Gaye added the comment: It was proposed, in issue 16056, to enhance `make patchcheck` with the detection of duplicate code names. This triggered the creation of issue 16079. The script named duplicate_code_names_2.py, in issue 16079, listed about 20 duplicate names among all the non-nested functions, classes or methods in the whole repository (default branch), mostly duplicated test names. I have entered an issue for each one of these cases, they are listed in issue 16079. Yes, this detection can be automated. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19119 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19159] 2to3 incorrectly converts two parameter unicode() constructor to str()
Serhiy Storchaka added the comment: Just add the b prefix to literal string argument of unicode() in Python 2. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19159 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19168] pprint.pprint(..., compact=True) not implemented
New submission from Alexis Layton: Documentation for 3.4 states that the compact keyword-only argument has been added to 3.4. However: Python 3.4.0a3 (default, Oct 2 2013, 14:05:02) [GCC 4.6.3] on linux Type help, copyright, credits or license for more information. import pprint pprint(3, compact=True) Traceback (most recent call last): File stdin, line 1, in module TypeError: 'module' object is not callable pprint.pprint(3, compact=True) Traceback (most recent call last): File stdin, line 1, in module TypeError: pprint() got an unexpected keyword argument 'compact' -- components: Library (Lib) messages: 198969 nosy: AlexisLayton priority: normal severity: normal status: open title: pprint.pprint(..., compact=True) not implemented type: behavior versions: Python 3.4 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19168 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18986] Add a case-insensitive case-preserving dict
Changes by Raymond Hettinger raymond.hettin...@gmail.com: -- assignee: - rhettinger ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18986 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19168] pprint.pprint(..., compact=True) not implemented
Ezio Melotti added the comment: This a very recent change, see #19132. Python 3.4.0a3+ (default:f0416b2b5654, Oct 5 2013, 02:10:25) [GCC 4.7.3] on linux Type help, copyright, credits or license for more information. import pprint pprint.pprint(3, compact=True) 3 -- nosy: +ezio.melotti, serhiy.storchaka resolution: - invalid stage: - committed/rejected status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19168 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18594] C accelerator for collections.Counter is slow
Roundup Robot added the comment: New changeset e4cec1116e5c by Raymond Hettinger in branch '3.3': Issue #18594: Make the C code more closely match the pure python code. http://hg.python.org/cpython/rev/e4cec1116e5c -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18594 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19166] Unusued variable in test_keys in Lib/test/test_dict.py
Roundup Robot added the comment: New changeset 92c2e76ca595 by Ezio Melotti in branch '2.7': #19166: use an unused var in a test. Patch by Vajrasky Kok. http://hg.python.org/cpython/rev/92c2e76ca595 New changeset 33bbc60705e8 by Ezio Melotti in branch '3.3': #19166: use an unused var in a test. Patch by Vajrasky Kok. http://hg.python.org/cpython/rev/33bbc60705e8 New changeset 16a88d026571 by Ezio Melotti in branch 'default': #19166: merge with 3.3. http://hg.python.org/cpython/rev/16a88d026571 -- nosy: +python-dev ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19166 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19166] Unusued variable in test_keys in Lib/test/test_dict.py
Ezio Melotti added the comment: Fixed, thanks for the report and the patch! -- assignee: - ezio.melotti nosy: +ezio.melotti resolution: - fixed stage: - committed/rejected status: open - closed type: - enhancement versions: +Python 2.7, Python 3.3 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19166 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19165] Change formatter warning to DeprecationWarning in 3.5
Changes by Ezio Melotti ezio.melo...@gmail.com: -- nosy: +ezio.melotti stage: - needs patch type: - enhancement ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19165 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19111] 2to3 should remove from future_builtins import *
Changes by Terry J. Reedy tjre...@udel.edu: -- nosy: +benjamin.peterson ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19111 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19164] Update uuid.UUID TypeError exception: integer should not be an argument.
Changes by Ezio Melotti ezio.melo...@gmail.com: -- keywords: +easy nosy: +ezio.melotti stage: - needs patch versions: +Python 2.7 -Python 2.6 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19164 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19154] AttributeError: 'NoneType' in http/client.py when using select when file descriptor is closed.
Changes by Ezio Melotti ezio.melo...@gmail.com: -- stage: - test needed type: crash - behavior versions: -Python 2.6, Python 3.1, Python 3.2 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19154 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19124] os.execv executes in background on Windows
Terry J. Reedy added the comment: In general, os module functions lightly wrap the corresponding operating system calls. It does not mask differences between OSes, or between versions of an OS. So the unix-windows difference is not a bug and the behavior will not change. The difference could, however, be described succinctly in the doc. In the first paragraph, after On Unix, the new executable is loaded into the current process, and will have the same process id as the caller., we could add something like On Windows, the new process is executed in the background but can send output to a console if the original process was started in a console. This has to be worded carefully because the process could instead have been started from an icon, including in Start Menu or Windows Explorer. -- assignee: - docs@python components: +Documentation -Library (Lib) nosy: +docs@python, terry.reedy stage: committed/rejected - needs patch versions: +Python 3.4 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19124 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19129] 6.2.1. Regular Expression Syntax flags
Changes by Terry J. Reedy tjre...@udel.edu: -- stage: - needs patch versions: +Python 2.7, Python 3.4 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19129 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19148] Minor issues with Enum docs
Roundup Robot added the comment: New changeset db94fc7218fa by Ezio Melotti in branch 'default': #19148: fix markup errors and wording in enum docs. Patch by Esa Peuha. http://hg.python.org/cpython/rev/db94fc7218fa -- nosy: +python-dev ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19148 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19148] Minor issues with Enum docs
Ezio Melotti added the comment: Fixed, thanks for the report and the patch! I used a slightly different wording than the one you suggested because the rest of the document doesn't seem to use you. -- assignee: docs@python - ezio.melotti nosy: +ezio.melotti resolution: - fixed stage: - committed/rejected status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19148 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19150] IDLE shell fails: ModifiedInterpreter instance has no attribute 'interp'
Terry J. Reedy added the comment: By default, Idle runs user code in a separate process from the idle process that runs shell and edit windows. Because connecting the two processes sometimes fails, there is a start-up option -N (No subprocess) that run your code in the same process as idle code. Since this option also has potential problems, it should not be used unless necessary. In fact, some of us would like to eliminate the option (after fixing connection problems). I tried and failed to reproduce the problem with 2.7.5 on Windows. I started with -N, opened an editor window, ran (F5) with a comment uncommented, got a syntax error box, added '#', ran again, and the valid code ran fine. To continue this issue, update from 2.7.3 to 2.7.5 and see if you still have the problem. The update has 100s of bug fixes including many Idle fixes. If you do still see a problem with 2.7.5, please find a minimal file that has creates a problem when '#' is missing. Also, if you do, please test with 3.3.2 or the most recent 3.4.0. -- nosy: +terry.reedy stage: - test needed type: compile error - behavior ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19150 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19152] ExtensionFileLoader missing get_filename()
Changes by Eric Snow ericsnowcurren...@gmail.com: -- status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19152 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19152] ExtensionFileLoader missing get_filename()
Roundup Robot added the comment: New changeset 62d045a873bb by Eric Snow in branch 'default': [issue 19152] Ensure we have actually registered ExtensionFileLoader as an ExecutionLoader. http://hg.python.org/cpython/rev/62d045a873bb New changeset e9554199620f by Eric Snow in branch 'default': [issue 19152] Add versionadded for ExtensionFileLoader.get_filename(). http://hg.python.org/cpython/rev/e9554199620f -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19152 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19154] AttributeError: 'NoneType' in http/client.py when using select when file descriptor is closed.
Terry J. Reedy added the comment: Changing the API of HTTPResponse.fileno is a feature change, not a bug fix. I do not think it should be changed as it would break existing code to no purpose. Instead, calls should continue to wrapped in try: except ValueError when failure is possible. And this issue closed as rejected. -- As to the illustrative example: I do not think the call in _fileobject.fileno should be so wrapped because I think the bug is elsewhere. _fileinput()._sock is supposed to be a socket, not an HTTPResponse. This says to me that a) self._sock.fileno() is supposed to call socket.fileno, not HTTPResonse.fileno; and b) nappstore/server_comm.py is calling socket(_sock=HTTPResonse object) (or directly modifying the .sock attribute). If b) is true, that strikes me as a bug because _sock is an undocumented private parameter, subject to change. Indeed it disappeared in 3.x when socket became a _socket.socket subclass rather than a wrapper thereof. (Also, the pseudo _fileobject was replaced with an appropriate, real, io class.) -- nosy: +terry.reedy versions: -Python 3.3, Python 3.4, Python 3.5 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19154 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19145] Inconsistent behaviour in itertools.repeat when using negative times
Changes by Ezio Melotti ezio.melo...@gmail.com: -- nosy: +ezio.melotti, serhiy.storchaka stage: - patch review ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19145 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19161] collections Counter handles nan strangely
Terry J. Reedy added the comment: This is the sort of issue that makes me think that there should be a single nan object (perhaps an instance of a Nan(float) subclass with a special __eq__ method ;-). Pending that, I agree with closing as won't fix. -- nosy: +terry.reedy ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19161 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19129] 6.2.1. Regular Expression Syntax flags
Changes by Ezio Melotti ezio.melo...@gmail.com: -- keywords: +easy type: - enhancement versions: -Python 2.7 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19129 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19113] duplicate test names in Lib/ctypes/test/test_functions.py
Changes by Ezio Melotti ezio.melo...@gmail.com: -- nosy: +ezio.melotti stage: - needs patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19113 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19161] collections Counter handles nan strangely
Changes by Raymond Hettinger raymond.hettin...@gmail.com: -- resolution: - wont fix status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19161 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18864] Implementation for PEP 451 (importlib.machinery.ModuleSpec)
Eric Snow added the comment: Here's an initial patch. Some key things left to do: * unit tests * documentation * implement exec_module() for the various importlib loaders. Once that's squared away there are further things that will be addressed in new tickets (or at least separate patches). This includes: * remove init_module_attrs() and module_to_load() * deprecations * clear a bunch of helper functions out of _bootstrap.py * use ModuleSpec with __main__ * address impact on stdlib (pkgutil, pickle, etc.) -- keywords: +patch stage: needs patch - patch review Added file: http://bugs.python.org/file31959/modulespec-initial.diff ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18864 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18862] Implement __subclasshook__() for Finders and Loaders in importlib.abc
Eric Snow added the comment: Here's a patch. -- keywords: +patch stage: test needed - patch review Added file: http://bugs.python.org/file31960/issue18862-importlib-abc-subclasshooks.diff ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18862 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
