[issue9942] Allow memory sections to be OS MERGEABLE
Changes by s7v7nislands : -- nosy: +s7v7nislands ___ Python tracker <http://bugs.python.org/issue9942> ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue11284] slow close file descriptors in subprocess, popen2, os.pepen*
s7v7nislands added the comment: thanks, neologix. I think should put this hint in python doc. -- ___ Python tracker <http://bugs.python.org/issue11284> ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue11284] slow close file descriptors in subprocess, popen2, os.popen*
Changes by s7v7nislands : Removed file: http://bugs.python.org/file20834/py3k.patch ___ Python tracker <http://bugs.python.org/issue11284> ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue11284] slow close file descriptors in subprocess, popen2, os.popen*
Changes by s7v7nislands : Removed file: http://bugs.python.org/file20835/python27.patch ___ Python tracker <http://bugs.python.org/issue11284> ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue11635] concurrent.futures uses polling
Changes by s7v7nislands : -- nosy: +s7v7nislands ___ Python tracker <http://bugs.python.org/issue11635> ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue11743] Rewrite PipeConnection and Connection in pure Python
Changes by s7v7nislands : -- nosy: +s7v7nislands ___ Python tracker <http://bugs.python.org/issue11743> ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue5315] signal handler never gets called
Changes by s7v7nislands : -- nosy: +s7v7nislands ___ Python tracker <http://bugs.python.org/issue5315> ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue11284] slow close file descriptors in subprocess, popen2, os.pepen*
New submission from s7v7nislands : when use popen*() and close_fds is True, python will close unused fds. but the MAXFD is not the real max. especially in freebsd, subprocess.MAXFD=655000. so python will try to close to many fd, it's too slow, in my test on freebsd, using about 3 seconds. poor english. patch for 2.7 trunck: jiangxiaobing@s7v7nislands ~/source/svn/python27 $ svn diff Index: Lib/subprocess.py === --- Lib/subprocess.py (revision 88499) +++ Lib/subprocess.py (working copy) @@ -1065,11 +1065,16 @@ def _close_fds(self, but): +maxfd = MAX_FD +try: +maxfd = os.dup(0) + 1 +except: +pass if hasattr(os, 'closerange'): os.closerange(3, but) -os.closerange(but + 1, MAXFD) +os.closerange(but + 1, maxfd) else: -for i in xrange(3, MAXFD): +for i in xrange(3, maxfd): if i == but: continue try: Index: Lib/popen2.py === --- Lib/popen2.py (revision 88499) +++ Lib/popen2.py (working copy) @@ -82,8 +82,13 @@ def _run_child(self, cmd): if isinstance(cmd, basestring): cmd = ['/bin/sh', '-c', cmd] -os.closerange(3, MAXFD) +maxfd = MAXFD try: +maxfd = os.dup(0) + 1 +except: +pass +os.closerange(3, maxfd) +try: os.execvp(cmd[0], cmd) finally: os._exit(1) patch for 3.3 truck: diff --git a/Lib/subprocess.py b/Lib/subprocess.py index c02fb52..98a25b3 100644 --- a/Lib/subprocess.py +++ b/Lib/subprocess.py @@ -1112,8 +1112,14 @@ class Popen(object): if fd >= start_fd: os.closerange(start_fd, fd) start_fd = fd + 1 -if start_fd <= MAXFD: -os.closerange(start_fd, MAXFD) +maxfd = MAXFD +try: +maxfd = os.dup(0) + 1 +except: +pass + +if start_fd <= maxfd: +os.closerange(start_fd, maxfd) def _execute_child(self, args, executable, preexec_fn, close_fds, -- components: Library (Lib) files: py3k.patch keywords: patch messages: 129043 nosy: s7v7nislands priority: normal severity: normal status: open title: slow close file descriptors in subprocess, popen2, os.pepen* type: performance versions: Python 2.5, Python 2.6, Python 2.7, Python 3.1, Python 3.2, Python 3.3 Added file: http://bugs.python.org/file20834/py3k.patch ___ Python tracker <http://bugs.python.org/issue11284> ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue11284] slow close file descriptors in subprocess, popen2, os.pepen*
Changes by s7v7nislands : Added file: http://bugs.python.org/file20835/python27.patch ___ Python tracker <http://bugs.python.org/issue11284> ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue14499] Extension module builds fail with Xcode 4.3 on OS X 10.7 due to SDK move
s7v7nislands added the comment: maybe you can use xcode-select to set the correct path xcode-select -print-path /Applications/Xcode.app/Contents/Developer Usage: xcode-select -print-path or: xcode-select -switch -switch Sets the path for the current Xcode for detail, you can man xcode-select -- nosy: +s7v7nislands ___ Python tracker <http://bugs.python.org/issue14499> ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue6874] sequence method .count() and .index() shoud be in immutable sequence method list.
New submission from s7v7nislands : In document 6.6.4. Mutable Sequence Types says: The following operations are defined on mutable sequence types: s.count(x) return number of i‘s for which s[i] == x s.index(x[, i[, j]])return smallest k such that s[k] == x and i <= k < j (4) here, s.count() and s.index() maybe should in immutable sequence types operations list. -- assignee: georg.brandl components: Documentation messages: 92471 nosy: georg.brandl, s7v7nislands severity: normal status: open title: sequence method .count() and .index() shoud be in immutable sequence method list. ___ Python tracker <http://bugs.python.org/issue6874> ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue7087] use keyword 'as' in _xmlplus
New submission from s7v7nislands : In these files: _xmlplus/xpath/ParsedAbbreviatedAbsoluteLocationPath.py _xmlplus/xpath/ParsedAbbreviatedRelativeLocationPath.py, use the keyword 'as'. -- messages: 93770 nosy: s7v7nislands severity: normal status: open title: use keyword 'as' in _xmlplus type: compile error versions: Python 2.6 ___ Python tracker <http://bugs.python.org/issue7087> ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
