Vetoshkin Nikita added the comment:
glad to help
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Vetoshkin Nikita added the comment:
Sorry, no traceback by default, had to augment with "raise" :) Now output looks
like this:
nekto0n@ya-darkstar /var/tmp/mypackage $ pysetup remove pygraphviz
u'workflow': u'1.01' is not a valid version (field 'Version'
Vetoshkin Nikita added the comment:
pysetup install.
strace of removal looks like this:
stat("/home/nekto0n/workspace/pillar/penv/lib/python2.7/site-packages/ygroup/__init__.py",
{st_mode=S_IFREG|0664, st_size=0, ...}) = 0
rename("/home/nekto0n/workspace/pillar/penv/lib/python2.
New submission from Vetoshkin Nikita :
When I attempt to remove package with pysetup remove 'package-name' on Fedora
17 - it fails with:
'my-package' cannot be removed
Error: [Errno 18] Invalid cross-device link
strace'ing showed that there was an attempt to call rena
Vetoshkin Nikita added the comment:
> The same value as for other non-blocking sockets, IMO.
There are three possible values I think:
1. parent's current sock_timeout
2. global default socket timeout
3. 0
Can you please tell which one? I assume it should be
Vetoshkin Nikita added the comment:
up?
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Vetoshkin Nikita added the comment:
Started implementing accept4() socket method and stuck on socket object's
timeout attribute. What value should we assign to sock->sock_timeout if
SOCK_NONBLOCK was specified in accept4() call? And in socket.py should we check
as in original ac
Vetoshkin Nikita added the comment:
Sorry, wrong ticket. Right one is 10115
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Vetoshkin Nikita added the comment:
Started implementing accept4() socket method and stuck on socket object's
timeout attribute. What value should we assign to sock->sock_timeout if
SOCK_NONBLOCK was specified in accept4() call? And in socket.py should we check
as in original ac
Vetoshkin Nikita added the comment:
added some tests (not sure if in appropriate place).
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Added file: http://bugs.python.org/file23529/issue_8036_1.patch
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Vetoshkin Nikita added the comment:
against py3k branch?
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Vetoshkin Nikita added the comment:
Yes, I can.
We decided to expose accept4() as another socket method, not accept()
replacement?
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Vetoshkin Nikita added the comment:
I don't think we should block signals - we can sleep on select for about
forever.
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Vetoshkin Nikita added the comment:
up!
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Vetoshkin Nikita added the comment:
ping?
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Vetoshkin Nikita added the comment:
Attached first attempt to close this issue. Are there enough checks? It passes:
os.spawnl(os.P_WAIT, '')
os.spawnl(os.P_WAIT, 'path')
os.spawnl(os.P_WAIT, 'path', '')
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keywords: +patch
nosy: +nvetoshkin
Adde
Vetoshkin Nikita added the comment:
My benchmarks show that xlistdir() gives the only memory usage advantage on
large directories. No speed gain so far - maybe my patch is wrong.
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Vetoshkin Nikita added the comment:
>BTW, can you publish your xlistdir implementation somewhere?
http://pastebin.com/Qnni5HBa
Tests show 10 times smaller memory footprint during directory listing - 25Mb
against 286Mb on directory with 800K entr
Vetoshkin Nikita added the comment:
>We could, but someone must:
>1) provide a patch
While working on a straightforward patch for linux, I had to make a lot of
copy-paste job. posixmodule.c is quite a mess already :(
>2) demonstrate a significant improvement in some real-world
Vetoshkin Nikita added the comment:
Can't we simply add os.xlistdir() leaving listdir() as is?
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Vetoshkin Nikita added the comment:
Glibc's readdir() and readdir_r() already do caching, so getdents() syscall is
called only once on my '/etc' directory. Should we include another caching
level in xlistdir() function?
On the other hand, we don't know anything about cac
Vetoshkin Nikita added the comment:
Generator listdir() could be useful if I have a directory with several millions
of files and I what to process just a hundred.
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nosy: +nvetoshkin
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Vetoshkin Nikita added the comment:
Here's a similar bug: http://bugs.python.org/issue7978.
>EINTR may occur if SA_RESTART is not specified in sigaction.
Some syscalls (like select) will generate EINTR despite SA_RESTART. man 7 signal
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nosy: +nv
Vetoshkin Nikita added the comment:
>It's also possible using existing wrapped os system calls.
That's right, on linux we can use ioctls but windows would require win api
calls like this one:
http://stackoverflow.com/questions/166506/finding-local-ip-addresses-in-python/
Vetoshkin Nikita added the comment:
Maybe I understood and ctypes ImportError simply must be handled and fallbacked
to something else. But there are only 3 ways of getting MAC address:
1. using popen
2. using ctypes and native calls
3. using C API and performing native calls in extension
And
Vetoshkin Nikita added the comment:
>uuid should work even when ctypes is not available
A bit of offtopic: why can't we assume that ctypes is available?
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Vetoshkin Nikita added the comment:
I think launching external tools like ifconfig and ipconfig can be avoided
pretty easily. There are many recipes around the net how to use native API's.
About ctypes' horrible logic during find_library call - don't know yet.
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Vetoshkin Nikita added the comment:
I guess http://bugs.python.org/issue1195 might be related
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Vetoshkin Nikita added the comment:
Here's a patch, which performs argument checking in a way to be able to provide
better error message like that:
>>> my_socket.sendto("No Umlaut", ("localhost", 514))
Traceback (most recent call last):
File "", l
Vetoshkin Nikita added the comment:
Confirming that issue is present in latest svn checkout and Ralf's fix helps.
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Vetoshkin Nikita added the comment:
Any news on this? Could we possibly apply patch as is? If I'm not mistaken
timeout issue is the only one left unresolved.
About timeout. The most elegant way, would be to use select's syscall timeout
parameter, but man 2 select says: "On
Vetoshkin Nikita added the comment:
Updated patch: some tests added.
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Added file: http://bugs.python.org/file19307/issue1467929_py3k.diff
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Changes by Vetoshkin Nikita :
Removed file: http://bugs.python.org/file19271/issue1467929_py3k.diff
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Pytho
Vetoshkin Nikita added the comment:
Updated patch to capture another patological case:
'%(a)s %' % {'a':'xyz'} - incomplete formatter at the end of the line
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Added file: http://bugs.python.org/file19271/issue1467929_py3k.diff
Changes by Vetoshkin Nikita :
Removed file: http://bugs.python.org/file19270/issue1467929_py3k.diff
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Vetoshkin Nikita added the comment:
@Alexander, it was just a note, that implementation in posixmodule.c won't be
the same across all flavours of Unix :)
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Vetoshkin Nikita added the comment:
Updated patch against py3k. Fixing last reported issue with
'%(a)s %%' % {'a':'xyz'}
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nosy: +nvetoshkin
Added file: http://bugs.python.org/file19270/issue1467929_py3k.diff
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Vetoshkin Nikita added the comment:
>What is it meant for? And why does it come right after a "return" statement?
@Antoine, if fd was supplied and it was correct (not returned with -1), let's
drop flags that can't be inherited.
It's a mistake, at that level we
Vetoshkin Nikita added the comment:
Made a proof of concept patch (no doc updates yet). Decided to implement
separate accept4() method, cause we have already spent enough time dealing with
it and rollback would be pity.
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keywords: +patch
Added file: http://bugs.python.org/file19253
Vetoshkin Nikita added the comment:
Did a bit of digging and found that getgrouplist signature differs on (at
least) Linux and Mac OS:
- http://www.kernel.org/doc/man-pages/online/pages/man3/getgrouplist.3.html
-http://developer.apple.com/library/mac/#documentation/Darwin/Reference/ManPages
Vetoshkin Nikita added the comment:
Weekend is coming, so I can lend a hand in implementing whatever you choose.
Summary:
* remove accept4() as default and expose it as separate method
* add runtime fallback if accept4() returns ENOSYS
Vetoshkin Nikita added the comment:
What about exposing accept4() to python level?
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Vetoshkin Nikita added the comment:
Falling back on result 90 is not that difficult, I think I can submit a patch
today. What should be checked ENOSYS or 90?
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Vetoshkin Nikita added the comment:
Agree.
Already written code won't suffer, new code should be ready to use new linux
kernel.
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Vetoshkin Nikita added the comment:
Here's the patch from debian's issue
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=529920
Patch URL:
https://patches.ubuntu.com/by-release/extracted/ubuntu/n/neon27/0.28.4-2/01_runtime_detect_sock_cloe
Vetoshkin Nikita added the comment:
What about kernel version? As far as I know 2.6.27 is minimum requirement.
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Vetoshkin Nikita added the comment:
@Antoine already found that myself, patched and tested :) thanks!
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Added file: http://bugs.python.org/file19226/issue7523_py3k_accept4_2.diff
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Vetoshkin Nikita added the comment:
Here's what strace on FAIL shows (print "in alarm_handler" added)
alarm(2)= 0
poll([{fd=3, events=POLLIN}], 1, 5000) = ? ERESTART_RESTARTBLOCK (To be
restarted)
--- SIGALRM (Alarm clock) @ 0 (0) ---
rt_sigre
Vetoshkin Nikita added the comment:
Another patch with:
- testInitBlocking method
- no c++ style comments
- a newly generated configure script (almost 1.5k lines diff)
- proper accept4 availability check
With this patch I've got
Traceback (most recent call last):
File "/
Vetoshkin Nikita added the comment:
Thanks! I can see the problem now, but I think checking should be done like
this:
>>> fcntl.fcntl(c, fcntl.F_GETFD) & fcntl.FD_CLOEXEC
0
>>> fcntl.fcntl(s, fcntl.F_GETFD) & fcntl.FD_CLOEXEC
1
and with accept4() call I've
Vetoshkin Nikita added the comment:
Made an attempt to port lekma's patch to py3k-trunk. No (logical) changes
needed.
Don't know about accept4() issue. As I saw in Qt sources, they ifdef'ed CLOEXEC
by default on file descriptors. Don't think it's acceptable :) in
Vetoshkin Nikita added the comment:
I vote for making a global wrapper. As neologix pointed - many other modules
can be (or are) affected. Futher found bugs could be fixed using that global
wrapper.
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Vetoshkin Nikita added the comment:
According to "man 7 signal" select must be explicitely restarted, regardless of
the SA_RESTART flag.
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Vetoshkin Nikita added the comment:
> What kind of signals can be received in real-life?
We use SIGUSR1 to reopen log files after rotation. sighandler works just fine,
but after that Paste crashes.
I suppose that implementing silent syscall restart at select.select() level is
a bad i
Vetoshkin Nikita added the comment:
What about this example?
>>> from xml.dom import minidom
>>> doc = minidom.Document()
>>> el = doc.createElement("Test")
>>> el.setAttribute("with space", "False")
>>> doc.appendChi
Vetoshkin Nikita added the comment:
Wrapping select in (taken from twisted sources) can help:
def untilConcludes(f, *a, **kw):
while True:
try:
return f(*a, **kw)
except (IOError, OSError), e:
if e.args[0] == errno.EINTR:
continue
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