🌐 Mailman 3 September 2010 - Python-list - python.org

sys.setrecursionlimit() and regular expressions
by Santiago Caracol Sept. 30, 2010

Sept. 30, 2010

Hello, in my program I use recursive functions. A recursion limit of 10 would be by far sufficient. Yet, I also use some (not very complicated) regular expressions, which only compile if I set the recursion limit to 100, or so. This means, of course, an unnecessary loss of speed. Can I use one recursion limit for my functions and another one for the re module? Santiago

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Re: System idle time under Linux
by John Pinner Sept. 30, 2010

Sept. 30, 2010

On Sep 29, 7:36 pm, Hugo Léveillé <hu...(a)fastmail.net> wrote: > Good point > > One I am looking for, is time since last user mouse or keyboard action. > So I guess I am looking for the exact same thing a screensaver is > looking for The command who -Hu). will give you idle time for each logged-in user ( H - print headers; u - list users ) and you could run this command via subprocess, then read and parse its output. Alternatively you could parse the same file(s) as who - I think it reads /var/run/utmp - but that would be a lot more work, as it is a binary file (run man utmp to see its format, use the struct module to decode) Best wishes, John --

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install 3.1
by roronron Sept. 30, 2010

Sept. 30, 2010

My python installed but the gui gives me syntax error on any code I type or paste in. Newbie needs help.

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Re: utf-8 and ctypes
by deets＠web.de Sept. 30, 2010

Sept. 30, 2010

Brendan Miller <catphive(a)catphive.net> writes: > 2010/9/29 Lawrence D'Oliveiro <ldo(a)geek-central.gen.new_zealand>: >> In message <mailman.1132.1285714474.29448.python-list(a)python.org>, Brendan >> Miller wrote: >> >>> It seems that characters not in the ascii subset of UTF-8 are >>> discarded by c_char_p during the conversion ... >> >> Not a chance. >> >>> ... or at least they don't print out when I go to print the string. >> >> So it seems there’s a problem on the printing side. What happens when you >> construct a UTF-8-encoded string directly in Python and try printing it the >> same way? > > Doing this seems to confirm something is broken in ctypes w.r.t. UTF-8... > > if I enter: > str = "日本語のテスト" What is this? Which encoding is used by your editor to produce this byte-string? If you want to be sure you have the right encoding, you need to do this: - put a coding: utf-8 (or actually whatever your editor uses) in the first or second line - use unicode literals. That are the funny little strings with a "u" in front of them. They will be *decoded* using the declared encoding. - when passing this to C, explicitly *encode* with utf-8 first. Diez

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Re: System idle time under Linux
by Ifrit Sept. 30, 2010

Sept. 30, 2010

Hugo Léveillé heeft het volgende neergekrabbeld: > > Thanks, will take a closer look on that > > But to get me started, how would you get, via python, the info from that >From a unix command prompt use the cat command to view their contents. You'll notice that they plain text files with very informative content: # cat /proc/stat cpu 3799492 103198 3546212 82899838 1183162 137849 118698 0 0 cpu0 1071799 22089 1141874 20155255 262512 2714 1704 0 0 cpu1 926425 27349 694583 21016324 302881 2488 4253 0 0 cpu2 938331 29131 736412 21113333 202243 123636 104475 0 0 cpu3 862937 24629 973343 20614926 415526 9011 8266 0 0 intr 153564472 28 10 0 0 0 0 0 7 1 3018879 0 0 173 0 0 0 62 55962320 0 0 0 0 0 9620148 749 0 0 0 0 0 0 0 0 0 0 3136950 4742352 320982 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ctxt 478141455 btime 1285609820 processes 45111 procs_running 1 procs_blocked 0 softirq 195073836 0 34148873 30536 22265404 4426357 0 55946604 22390786 370319 55494957 -- Ifrit http://nl.wikipedia.org/wiki/Ifriet

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Re: System idle time under Linux
by Lawrence D'Oliveiro Sept. 30, 2010

Sept. 30, 2010

In message <mailman.1165.1285772270.29448.python-list(a)python.org>, Hugo Léveillé wrote: > Sorry, I am not a linux guy. Did not know it was a text file That’s why I said to check the proc(5) man page for further details.

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Re: bzr 2.2.1 released !
by Sridhar Ratnakumar Sept. 30, 2010

Sept. 30, 2010

Hi, It seems that you forgot to update PyPI - which lists 2.1.0rc1 as the latest version. -srid On 2010-09-28, at 7:20 AM, Vincent Ladeuil wrote: > The Bazaar team is happy to announce availability of a new > release of the bzr adaptive version control system. > Bazaar is part of the GNU system <http://gnu.org/>. > > This is a bugfix release which also includes bugfixes from 2.0.6 and > 2.1.3. None are critical, but upgrading is recommended for all users on > earlier 2.2 releases. > > Thanks to everyone who contributed patches, suggestions, and > feedback. > > Bazaar is now available for download from > > https://launchpad.net/bzr/2.2/2.2.1/ > > as a source tarball. Packages are already available for Ubuntu, FreeBSD > and others. Installers are available for OSX, windows installers should > be available Really Soon Now (watch the url above where they should pop > up as soon as they become available). > > bzr 2.2.1 > ######### > > :2.2.1: 2010-09-17 > > This is a bugfix release which also includes bugfixes from 2.0.6 and > 2.1.3. None are critical, but upgrading is recommended for all users on > earlier 2.2 releases. > > Bug Fixes > ********* > > * Additional merges after an unrelated branch has been merged with its > history no longer crash when deleted files are involved. > (Vincent Ladeuil, John Arbash Meinel, #375898) > > * ``bzr add SYMLINK/FILE`` now works properly when the symlink points to a > previously-unversioned directory within the tree: the directory is > marked versioned too. > (Martin Pool, #192859) > > * ``bzr commit SYMLINK`` now works, rather than trying to commit the > target of the symlink. > (Martin Pool, John Arbash Meinel, #128562) > > * ``bzr upgrade`` now creates the ``backup.bzr`` directory with the same > permissions as ``.bzr`` directory on a POSIX OS. > (Parth Malwankar, #262450) > > * CommitBuilder now uses the committer instead of _config.username to generate > the revision-id. (Aaron Bentley, #614404) > > * Configuration files in ``${BZR_HOME}`` are now written in an atomic > way which should help avoid problems with concurrent writers. > (Vincent Ladeuil, #525571) > > * Cope with Microsoft FTP server that returns reply '250 Directory > created' when mkdir succeeds. (Martin Pool, #224373) > > * Don't traceback trying to unversion children files of an already > unversioned directory. (Vincent Ladeuil, #494221) > > * Don't traceback when a lockdir's ``held/info`` file is corrupt (e.g. > contains only NUL bytes). Instead warn the user, and allow ``bzr > break-lock`` to remove it. (Andrew Bennetts, #619872) > > * Fix ``AttributeError on parent.children`` when adding a file under a > directory that was a symlink in the previous commit. > (Martin Pool, #192859) > > * Fix ``AttributeError: 'NoneType' object has no attribute 'close'`` in > ``_close_ssh_proc`` when using ``bzr+ssh://``. This was causing > connections to pre-1.6 bzr+ssh servers to fail, and causing warnings on > stderr in some other circumstances. (Andrew Bennetts, #633745) > > * Only call ``setlocale`` in the bzr startup script on posix systems. This > avoids an issue with the newer windows C runtimes used by Python 2.6 and > later which can mangle bytestrings printed to the console. > (Martin [gz], #631350) > > * Prevent ``CHKMap.apply_delta`` from generating non-canonical CHK maps, > which can result in "missing referenced chk root keys" errors when > fetching from repositories with affected revisions. > (Andrew Bennetts, #522637) > > * Raise ValueError instead of a string exception. > (John Arbash Meinel, #586926) > > * Reduce peak memory by one copy of compressed text. > (John Arbash Meinel, #566940) > > * Repositories accessed via a smart server now reject being stacked on a > repository in an incompatible format, as is the case when accessing them > via other methods. This was causing fetches from those repositories via > a smart server (e.g. using ``bzr branch``) to receive invalid data. > (Andrew Bennetts, #562380) > > * Selftest with versions of subunit that support ``stopTestRun`` will no longer > error. This error was caused by 2.0 not being updated when upstream > python merged the end of run patch, which chose ``stopTestRun`` rather than > ``done``. (Robert Collins, #571437) > > * Stop ``AttributeError: 'module' object has no attribute 'ElementTree'`` > being thrown from ``xml_serializer`` on certain cElementTree setups. > (Martin [gz], #254278) > > * Upgrading or fetching from a non-rich-root repository to a rich-root > repository (e.g. from pack-0.92 to 2a) no longer fails with > ``'Inter1and2Helper' object has no attribute 'source_repo'``. This was > a regression from Bazaar 2.1. (Andrew Bennetts, #636930) > > * When passing a file to ``UTF8DirReader`` make sure to close the current > directory file handle after the chdir fails. Otherwise when passing many > filenames into a command line ``bzr status`` we would leak descriptors. > (John Arbash Meinel, #583486) > > Documentation > ************* > > * Fix a lot of references in the docs to the old http://bazaar-vcs.org to > the new http://bazaar.canonical.com or http://wiki.bazaar.canonical.com > (John Arbash Meinel, #617503) > > Internals > ********* > > * Remove used and broken code path in ``BranchInitHookParams.__repr__``. > (Andrew Bennetts) > > Testing > ******* > > * ``build_tree_contents`` can create symlinks. > (Martin Pool, John Arbash Meinel) > > * Tracebacks from a parameterized test are no longer reported against every > parameterization of that test. This was done by adding a hack to > ``bzrlib.tests.clone_test`` so that it no longer causes > testtools.TestCase instances to share a details dict. > (Andrew Bennetts, #625574) > -- > http://mail.python.org/mailman/listinfo/python-announce-list > > Support the Python Software Foundation: > http://www.python.org/psf/donations/

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Re: utf-8 and ctypes
by Lawrence D'Oliveiro Sept. 30, 2010

Sept. 30, 2010

In message <mailman.1132.1285714474.29448.python-list(a)python.org>, Brendan Miller wrote: > It seems that characters not in the ascii subset of UTF-8 are > discarded by c_char_p during the conversion ... Not a chance. > ... or at least they don't print out when I go to print the string. So it seems there’s a problem on the printing side. What happens when you construct a UTF-8-encoded string directly in Python and try printing it the same way?

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Re: Supplementing the std lib (Was: partial sums problem)
by Paul Rubin Sept. 30, 2010

Sept. 30, 2010

Dennis Lee Bieber <wlfraed(a)ix.netcom.com> writes: >> Python's version would be like "scanl" with an optional arg to make it >> like "scanl1". > Vs APL's "expand" operator? I'm not familiar with that but maybe it's similar.

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scheduler or infinite loop
by harryos Sept. 30, 2010

Sept. 30, 2010

hi I am trying to write a program to read data from a site url. The program must read the data from site every 5 minutes. def get_data_from_site(pageurlstr): h=urllib.urlopen(pageurlstr) data=h.read() process_data(data) At first, I thought of using the sched module ,but then it doesn't look right adding so many scheduler.enter() statements.The program is supposed to execute the above function every 5 minutes until the application is shut down by the user. I created an infinite loop while True: print time.asctime() get_data_from_site('http://somesite.com/') time.sleep(300) Is there a better way to do this?Any suggestions ,pointers most welcome thanks harry

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