eryksun added the comment:
It is not clear why the absence of _setmode(fd, os.O_BINARY)
is not detected by tests.
It's only a problem when an existing text-mode file descriptor is passed in.
For example, in text mode the CRT handles b'\x1a' as an EOF marker:
Python 3.5.0b4
Changes by Josh Rosenberg shadowranger+pyt...@gmail.com:
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nosy: +josh.r
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http://bugs.python.org/issue24305
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New submission from Hartmut Niemann:
Lib\sysconfig.py uses '{installed_base}/Include'
as the include directory on Windows,
Lib\distutils\sysconfig.py uses
elif os.name == nt:
return os.path.join(prefix, include)
which is normally harmless because windows file systems
are
R. David Murray added the comment:
My test harness already dumps the logging buffer on test failure.
What I need this for is debugging. My test harness verbose = 2 flag turns on
logging globally, and I need to see the logging from the code under test
correctly interspersed with the other
eryksun added the comment:
I forgot to set errcheck:
import ctypes
userenv = ctypes.WinDLL('userenv', use_last_error=True)
def errcheck_bool(result, func, args):
if not result:
raise ctypes.WinError(ctypes.get_last_error())
return args
Mark Roseman added the comment:
Just came across this one (Terry I'm sure can figure out why).
I'm sympathetic with Guilherme's wish that Tk had done this one differently, as
an option to specify an existing text widget peer when creating a text widget,
rather than having the original spawn a
Jake Garver added the comment:
I agree. I couldn't find a use for the check, so I removed it entirely in the
provided patch. I'm running that way now with success, but of course I'm
covering just one use case.
Digging back a bit further, the isdir() check came in here:
Cyd Haselton added the comment:
Question for Ryan Gonzalez:
Given this information...
On August 20, 2015 8:03:13 PM CDT, Russell Keith-Magee rep...@bugs.python.org
wrote:
Russell Keith-Magee added the comment:
What hardware architecture are you compiling for? If it's ARM64, and
you're not
Ryan Gonzalez added the comment:
On August 21, 2015 9:25:10 AM CDT, Cyd Haselton rep...@bugs.python.org wrote:
Cyd Haselton added the comment:
Question for Ryan Gonzalez:
Given this information...
On August 20, 2015 8:03:13 PM CDT, Russell Keith-Magee
rep...@bugs.python.org wrote:
Russell
eryksun added the comment:
Albert, this issue was opened for Python 2.4 and was closed over 6 years ago.
Open a new issue if you believe there's a bug or room for improvement in a
currently supported Python version.
FYI, on Windows _PyOS_URandom first initializes the Crypto API by calling
Albert Zeyer added the comment:
Ah thanks, that explains why it failed for me, and why it works after my fix,
which was anyway what I intended.
I mostly posted my comment here in case someone else hits this, so he has
another thing to check/debug.
I don't think that there is a bug on
eryksun added the comment:
Within the standard library, I think only the site module uses the top-level
sysconfig module, which IIRC it uses to set up sys.path.
Note that WINDOWS_SCHEME in distutils.command.install uses Include. Also for
virtual environments,
Changes by R. David Murray rdmur...@bitdance.com:
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versions: +Python 3.5, Python 3.6
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--
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Adam Meily added the comment:
Attached is a test Python script that you can run to see the race condition in
action. There are two Python scripts: pipe.py and reader.py.
- pipe.py: make two subprocess.Popen() calls from two different threads.
- reader.py: (its content is in the bottom
Changes by Nicolas Jouanin n...@beerfactory.org:
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New submission from Adam Meily:
** This issue and attached patch only affect Windows **
Currently, the Popen constructor will duplicate any stdout, stdin, and/or
stderr handle passed in and make them inheritable, by calling DuplicateHandle.
If two threads call Popen at the same time, the
R. David Murray added the comment:
Is it possible to construct a test for this?
--
components: +Windows
nosy: +gregory.p.smith, paul.moore, r.david.murray, steve.dower, tim.golden,
zach.ware
stage: - patch review
versions: -Python 3.2, Python 3.3
R. David Murray added the comment:
OK, so I think the goal was to prevent more than one *directory* from being
specified, since as I said earlier that wouldn't make sense given we have only
a single destdir path.
However, for backward compatibility reasons we should probably not restrict it,
R. David Murray added the comment:
pkg_resources is 3rd party code (from the point of view of this tracker). If
you are saying its code is revealing a bug in python, can you expand on what
exactly the bug is?
--
nosy: +r.david.murray
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Python
Changes by Serhiy Storchaka storch...@gmail.com:
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nosy: +haypo, serhiy.storchaka
versions: -Python 3.4
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Ryan Gonzalez added the comment:
Bus error is basically unaligned memory access.
...
...do you feel like trying to get a backtrace from GDB again? :) (The last
time likely didn't end well because the machine stack got somehow
corrupted.)
On Fri, Aug 21, 2015 at 2:04 PM, Cyd Haselton
Adam Meily added the comment:
Ok, I can re-implement the patch to meet what you all are looking for. I just
want to double check that I'm on the same page:
I'll get rid of the lock, because the fix should really be done in the call to
CreateProcessW. I imagine that I'll be editing
Akira Li added the comment:
To make _pyio correspond to the C version I've added
sys.platform in {'win32', 'cygwin'}
condition. See the attached pyio_setmode.diff
It is not clear why the absence of _setmode(fd, os.O_BINARY) is not detected by
tests.
(a) a corresponding test should be
Brett Cannon added the comment:
I can't reproduce under Python 3.4.3, the 3.4 branch, 3.5 branch, or default
with a plain namespace package. Can anyone come up with a test case that can
reproduce this problem? Otherwise I'll assume it was a bug that got fixed in
3.4.2.
--
status:
Changes by Terry J. Reedy tjre...@udel.edu:
--
nosy: +serhiy.storchaka
title: tkinter/Python 3.3.0: peer_create doesn't instantiate Text - tkinter:
change API of non-functioning peer_create, does not instantiate Text
type: behavior - enhancement
versions: +Python 3.6 -Python 3.3,
Serhiy Storchaka added the comment:
There is a reason for behavior in case 2. This is likely a truncated data and
it is safer to raise an exception than silently produce lone surrogate. Current
UTF-7 encoder always adds '-' after ending shift sequence. I suppose this is
not a bug.
However
New submission from zodalahtathi:
socket.socket has a context manager to automatically close the socket with the
`with` statement:
https://hg.python.org/cpython/file/d1bf181afa82/Lib/socket.py#l138
However it is not documented, unlike socket.create_connection.
--
assignee:
Chris Hogan added the comment:
Here's a change that might fix the trailing backslash problem for now without
breaking anything. libpath-fix.patch only affects arguments that we know are
paths. This happens before anything is quoted.
This avoids the problem when something like 'C:\path with
Changes by Brett Cannon br...@python.org:
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status: open - pending
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Mark Roseman added the comment:
Did a quick check... this approach seems to work. Only change was in step 4
should set both ._w and ._name for the widget object
--
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New submission from Steve Dower:
The MSIs for debug symbols and binaries have the same descriptions as the main
installers, so you can't distinguish between the packages in lists like
(get-package python).Name (in Powershell):
Python 3.5.0rc1 Development Libraries (64-bit)
Python 3.5.0rc1
STINNER Victor added the comment:
Yeah, when stdin, stdout or stderr is a pipe, subprocess.Popen() calls
CreateProcess() with the STARTF_USESTDHANDLES flag and bInheritHandles=TRUE.
This issue was fixed on UNIX for file descriptor inheritance. The fix is a
major change: Python 3.4 now only
Adam Meily added the comment:
@r.david.murray: Yes I could make a test.
@haypo:
I did not know about the PROC_THREAD_ATTRIBUTE_HANDLE_LIST structure, thanks
for the heads up. You pointed me in the right direction, and I see now that
you've been following this, and similar, subprocessing
STINNER Victor added the comment:
Yeah, when stdin, stdout or stderr is a pipe, subprocess.Popen() calls
CreateProcess() with the STARTF_USESTDHANDLES flag and bInheritHandles=TRUE.
This issue was fixed on UNIX for file descriptor inheritance. The fix is a
major change: Python 3.4 now only
Chris Hogan added the comment:
I think ensure_relative is incorrect. The comment in the function states:
Take the full path 'path', and make it a relative path. This is useful to
make 'path' the second argument to os.path.join().
However, according to the docs for os.path.join, if a
STINNER Victor added the comment:
It looks like the structure you reference to,
PROC_THREAD_ATTRIBUTE_HANDLE_LIST (STARTUPINFOEX), is only available in
Windows Vista and after. Which means that Windows XP/Server 2003 would still
have this issue.
Windows XP is no more supported in Python
Cyd Haselton added the comment:
Thanks Ryan.
Running ./python -m test (with the edit to the __init__.py for ctypes) produces
the following error:
[151/390/18] test_hash
Fatal Python error: Bus error
Current thread 0xb6f72ec8 (most recent call first):
File
Changes by STINNER Victor victor.stin...@gmail.com:
--
Removed message: http://bugs.python.org/msg248964
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Carl Meyer added the comment:
FWIW, this bug has bitten Django; see
https://code.djangoproject.com/ticket/25246
We can easily work around it for future versions, but we have code in released
versions that assumed that `__path__` wouldn't contain dupes; it causes us to
raise an error in a
Zachary Ware added the comment:
STINNER Victor added the comment:
For Windows Server 2003, yes, we will have to keep the current code which has
the race condition.
Server 2003 is also unsupported in 3.5+ (MS extended support ended in July).
--
New submission from John Leitch:
Python 3.5 suffers from a vulnerability caused by the behavior of the
newblock() function used by the collections.deque module. When called,
newblock() allocates memory using PyMem_Malloc() and does not initialize it:
static block *
newblock(Py_ssize_t len) {
Changes by John Leitch john.leit...@gmail.com:
Added file: http://bugs.python.org/file40225/newblock_Uninitialized_variable.py
___
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___
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--
nosy: +rhettinger
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New submission from Vadim Kantorov:
If module's __init__.py contains
__import__('pkg_resources').declare_namespace(__name__), the module is not
loaded, even though it's located in the current directory and should mask other
modules.
Originally I stumbled upon this issue while installing a
New submission from Michele Comitini:
When sending a message larger than 4096 bytes with smtpd on a ssl socket,
everything hangs.
This is due to polling before synchronizing the SSL channel with the underlying
socket.
The issue can be solved by properly modifying the poll function and
Albert Zeyer added the comment:
Note that there are still people who get this error in some strange cases, me
included.
E.g.:
http://stackoverflow.com/questions/27904936/python-exe-file-crashes-while-launching-on-windows-xp/32137554#32137554
This happened at a call to `os.urandom` for me.
New submission from Jim Minter:
SQLite supports incremental I/O to blobs, i.e. the capability to stream reads
and writes to blobs without having to load the entire blob into memory first.
See https://www.sqlite.org/c3ref/blob_open.html for more details on the C API.
It'd be nice if it were
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