Multiprocessing.Pipe in a daemon

So, I'm running into a somewhat crazy bug. I am running several workers using multiprocessing to handle gearman requests. I'm using pipes to funnel log messages from each of the workers back to the controlling process, which iterates over the other end of the pipe, looking for messages with poll()

Re: Closures in metaclasses

On Jan 21, 1:55 pm, Peter Otten <__pete...@web.de> wrote: > Falcolas wrote: > > I tried overriding __getattr__ and got an error at runtime (the > > You can either move __getattr__() into the metaclass or instantiate the > class. I prefer the latter. > >

Re: Closures in metaclasses

On Jan 21, 12:10 pm, Arnaud Delobelle wrote: > On Jan 21, 6:37 pm, Falcolas wrote: > > > On Jan 21, 11:24 am, Arnaud Delobelle wrote: > > > It was the easiest way I found to add a lot of static methods to the > > Tag class without writing each one out. __getattr__ w

Re: Closures in metaclasses

On Jan 21, 11:24 am, Arnaud Delobelle wrote: > Falcolas writes: > > I'm running into an issue with closures in metaclasses - that is, if I > > create a function with a closure in a metaclass, the closure appears > > to be lost when I access the final class. I end up g

Closures in metaclasses

I'm running into an issue with closures in metaclasses - that is, if I create a function with a closure in a metaclass, the closure appears to be lost when I access the final class. I end up getting the text 'param' instead of the actual tags I am expecting: ALL_TAGS = ['a', 'abbr', 'acronym', 'a

Re: how to format a python source file with tools?

On Nov 30, 7:37 am, gil_johnson wrote: > On Nov 27, 9:58 am, "Diez B. Roggisch" wrote: > [...] > > > > so i would like to have a tool to intelligently format the code for me > > > and make the code more beautiful > > > and automated. > > > This is not possible. Consider the following situation: >

Re: TODO and FIXME tags

On Nov 17, 4:27 am, "Martin P. Hellwig" wrote: > Ben Finney wrote: > > Chris Rebert writes: > > >> 2009/11/16 Yasser Almeida Hernández : > >>> How is the sintaxis for set the TODO and FIXME tags...? > >> There is no special syntax for those. Some people use them in > >> comments, but it's just a

Re: list comprehension problem

On Oct 29, 9:31 am, "Diez B. Roggisch" wrote: > mk wrote: > > Hello everyone, > > > print hosts > > hosts = [ s.strip() for s in hosts if s is not '' and s is not None and > > s is not '\n' ] > > print hosts > > > ['9.156.44.227\n', '9.156.46.34 \n', '\n'] > > ['9.156.44.227', '9.156.46.34', ''] >

Re: Recommended number of threads? (in CPython)

On Oct 29, 9:56 am, mk wrote: > Hello everyone, > > I wrote run-of-the-mill program for concurrent execution of ssh command > over a large number of hosts. (someone may ask why reinvent the wheel > when there's pssh and shmux around -- I'm not happy with working details > and lack of some options

Re: ImportError: No module named _md5 - please help

On Oct 29, 9:13 am, user7304 wrote: > Hi, > > I am trying to run a python script and got this error. > > >>import _md5 > >>ImportError: No module named _md5 > > Googling the problem suggested that I install the 'py25-hashlib'. > > the following does not work for me 'sudo port install py25-hashlib'

Re: How to write a daemon program to monitor symbolic links?

On Oct 23, 1:38 pm, Falcolas wrote: > On Oct 23, 1:25 pm, Peng Yu wrote: > > > > > As far as I know, linux doesn't support a system level way to figure > > out all the symbolic links point to a give file. I could do a system > > wide search to look for any s

Re: How to write a daemon program to monitor symbolic links?

On Oct 23, 1:25 pm, Peng Yu wrote: > As far as I know, linux doesn't support a system level way to figure > out all the symbolic links point to a give file. I could do a system > wide search to look for any symbolic link that point to the file that > I am interested in. But this will be too slow w

Re: Checking a Number for Palindromic Behavior

On Oct 20, 11:18 am, ru...@yahoo.com wrote: > Why *not* answering a question in comp.lang.python > because you think it is homework is BAD. > > 1) It may look like a homework problem to you but it >  probably isn't. >  Seehttp://groups.google.com/group/comp.lang.python/msg/8ac6db43b09fdc92 Homewor

Re: python along or bash combined with python (for manipulating files)

On Oct 13, 10:18 pm, TerryP wrote: > On Oct 14, 2:13 am, Peng Yu wrote: > > > Bash is easy to use on manipulating files and directories (like change > > name or create links, etc) and on calling external programs. For > > simple functions, bash along is enough. However, bash does not support > >

Re: Python XMLRPC question

On Oct 13, 2:22 pm, "Gabriel Genellina" wrote: > En Tue, 13 Oct 2009 16:55:09 -0300, Falcolas escribió: [snip] > > Looks like the simplest way to change that would be to inherit from > > the SimpleXMLRPCRequestHandler class and implement your own > > log_request m

Re: Python XMLRPC question

On Oct 13, 12:47 pm, prasanna wrote: > In using Python's XMLRPC, there is a statement that gets printed on > stdout of the form: >                  localhost - - [12/Oct/2009 23:36:12] "POST /RPC2 HTTP/ > 1.0" 200 - > > Where does this message originate? Can I turn it off, or at least > redirect i

Re: The rap against "while True:" loops

On Oct 12, 12:32 pm, Mensanator wrote: > On Oct 12, 1:02 pm, John Reid wrote: > > Mensanator wrote: > > > On Oct 12, 3:36 am, greg wrote: > > >> Mensanator wrote: > > >>> while not done: > > >>> ... > > >>> if n==1: done = True > > >>> ... > > >> Seems to me that 'while not done:' is no better t

Re: best vi / emacs python features

On Oct 8, 7:23 am, Jean-Michel Pichavant wrote: > Chris Jones wrote: > > On Wed, Oct 07, 2009 at 07:06:08PM EDT, TerryP wrote: > > > [..] > > >> I am a freak: I do not use nor want syntax highlighting. I don't want > >> my editor to understand mail, irc, or the www either, I want it to > >> edit t

Re: best vi / emacs python features

On Oct 7, 10:44 am, Jean-Michel Pichavant wrote: > OdarR wrote: > > hello, > > > * this is not a troll * > > > which kind of help you have with your favorite editor ? > > > personnally, I find emacs very nice, in the current state of my > > knowledge, when I need to reindent the code. > > you know

Re: Cannot get POST to work

On Sep 29, 10:24 am, "tedpot...@gmail.com" wrote: > Hi, > I'm trying to post data to a short test script in php I wrote. > The python code to do the post is > import httplib > > #server address > conn = httplib.HTTPConnection("localhost") > > #file location > conn.request("POST", "/programming/bot

Re: Storing a C pointer in a Python class instance

On Sep 29, 2:27 am, "lallous" wrote: > Hello > > From my C extension module I want to store a C pointer in a given PyObject. > > The only way I figure how to do it is to use Py_BuildValues and store the > poiner casted to Py_ssize_t, thus: > > Py_BuildValues("n", (Py_ssize_t)my_ptr) > > Can it be

Re: Podcast catcher in Python

On Sep 11, 8:20 am, Chuck wrote: > Hi all, > > I would like to code a simple podcast catcher in Python merely as an > exercise in internet programming.  I am a CS student and new to > Python, but understand Java fairly well.  I understand how to connect > to a server with urlopen, but then I don't

Re: Creating slice notation from string

On Sep 2, 3:55 pm, bvdp wrote: > I'm trying to NOT create a parser to do this and I'm sure that > it's easy if I could only see the light! > > Is it possible to take an arbitrary string in the form "1:2", "1", > ":-1", etc. and feed it to slice() and then apply the result to an > existing lis

Re: conditional for-statement

On Aug 25, 1:58 pm, seb wrote: > On Aug 25, 9:42 pm, Falcolas wrote: > > On Aug 25, 11:25 am, seb wrote: > > So, what part of the statement does the "if" statement belong to; > > particularly a concern considering this is valid python: > > > for x in y i

Re: conditional for-statement

On Aug 25, 11:25 am, seb wrote: > We could as consistenly explain that the syntax > > for n in range(10) if n%3==0: >   body > > means > > for n in range(10): >   if n%3==0: >     body > > This syntax has also the benefit of avoiding an extra level of > indentation (the one for the if) that bears

Re: your favorite debugging tool?

On Aug 23, 1:21 am, Hendrik van Rooyen wrote: > On Saturday 22 August 2009 16:49:22 Aahz wrote: > > > In article , > > > Esmail   wrote: > > >What is your favorite tool to help you debug your code? I've been > > >getting along with 'print' statements but that is getting old and > > >somewhat cumbe

Re: How to launch a function at regular time intervals ?

On Aug 12, 3:09 pm, David wrote: > Hi all, I'm trying to launch a function at regular time intervals but > cannot find the way to do it. Here is the code I wrote (time_interval > is a user defined variable in seconds): > [snip] > Has anyone run into a similar problem (and solved it) ? > > Thanks f

Re: Confessions of a Python fanboy

On Jul 31, 3:49 am, Masklinn wrote: > On 31 Jul 2009, at 10:25 , Chris Rebert wrote:> On Fri, Jul 31, 2009 at 1:21 > AM, Xavier Ho   > > wrote: > >> On Fri, Jul 31, 2009 at 6:08 PM, Masklinn   > >> wrote: > > >>> ... but since Python doesn't have anonymous functions that   > >>> usage > >>> tend

Re: Confessions of a Python fanboy

On Jul 30, 11:56 am, Masklinn wrote: > On 30 Jul 2009, at 19:37 , Jean-Michel Pichavant wrote: > > > r wrote: > > How do I know if foo.value is an attribute or if it is a method that   > > returns the foo value ? > > It cannot be an attribute. Ruby doesn't give access to attributes,   > they're a

Re: Confessions of a Python fanboy

On Jul 29, 9:06 pm, r wrote: > 1.) No need to use "()" to call a function with no arguments. > Python --> "obj.m2().m3()" --ugly >   Ruby --> "obj.m1.m2.m3"  -- sweeet! > Man, i must admit i really like this, and your code will look so much > cleaner. I personally would not prefer this, and woul

Re: n00b confusion re: local variable referenced before assignment error

On Jun 19, 10:16 am, Wells Oliver wrote: > Writing a class which essentially spiders a site and saves the files > locally. On a URLError exception, it sleeps for a second and tries again (on > 404 it just moves on). The relevant bit of code, including the offending > method: > > [snip] > > But wha

Re: What text editor is everyone using for Python

I am a long time VIM user, and I likely will not change that. The speed, ease of use and functionality, for me, is worth the time spent learning how to use it. My secondary editor on the desktop is UltraEdit, which does a fine job as a text editor and has all the same functionality of VIM - yet de

Re: Request For Comment

On Apr 7, 12:57 pm, a...@pythoncraft.com (Aahz) wrote: > How RFC1 got created: > > http://www.nytimes.com/2009/04/07/opinion/07crocker.html Thanks for bring that forward; I thought it was an interesting read and a nice polite (yet much needed) little jab at status-quo. ~G -- http://mail.python.or

Re: Why does Python not return first line?

On Mar 15, 6:25 pm, Gilles Ganault wrote: > address = re_address.search(response) > if address: > address = address.group(1).strip() > > #Important! > for item in ["\t","\r"," "]: > address = address.replace(item,"") > As you found, your script works just f

Re: An error in threading.py?

On Mar 11, 4:15 pm, Oltmans wrote: > Hi, all. I'm trying to use Mechanize in a multithreaded program-- > purpose of which is to fill out a form on a website using concurrent > threads. Guys, trust me I've spent a lot of time to figure out the > problem but I'm completed puzzled. Firstly, I've list

Re: Stopping SocketServer on Python 2.5

On Mar 11, 1:11 pm, David George wrote: > Again, problem here is the issue of being unable to kill the server > while it's waiting on a request. In theory, i could force it to > continue by sending some sort of junk data with the method i use to > stop the server, but that seems a bit hacky, don't

Re: Stopping SocketServer on Python 2.5

On Mar 11, 12:28 pm, David George wrote: > On 2009-03-11 04:36:29 +, "Mark Tolonen" said: > > > > > > > "David George" wrote in message > >news:00150e67$0$27956$c3e8...@news.astraweb.com... > >> Hi guys, > > >> I've been developing some code for a university project using Python. > >> We've b

Re: Stopping SocketServer on Python 2.5

On Mar 10, 7:19 pm, David George wrote: > So, my question is, is there any way to stop a SocketServer that's been > told to server forever in python 2.5? serve_forever, in python 2.5, is simply coded as: while 1: self.handle_request() So, instead of calling serve_forever, call handle_reques

Re: removing duplication from a huge list.

On Feb 27, 10:07 am, Steve Holden wrote: > Assuming no duplicates, how does this help? You still have to verify > collisions. Absolutely. But a decent hashing function (particularly since you know quite a bit about the data beforehand) will have very few collisions (theoretically no collisions, a

Re: removing duplication from a huge list.

On Feb 27, 8:33 am, Tim Rowe wrote: > 2009/2/27 odeits : > > > How big of a list are we talking about? If the list is so big that the > > entire list cannot fit in memory at the same time this approach wont > > work e.g. removing duplicate lines from a very large file. > > We were told in the orig

Re: Will multithreading make python less popular?

On Feb 19, 3:11 pm, Paul Rubin <http://phr...@nospam.invalid> wrote: > Falcolas writes: > > It's a proposition that used to bother me, until I did some actual > > programming of real world problems in Python. I've yet to really find > > a case where the appli

Re: Will multithreading make python less popular?

On Feb 19, 1:18 pm, Paul Rubin wrote: > ...  If such > speedups were useless or unimportant, we would not have blown our hard > earned cash replacing perfectly good older hardware, so we have to > accept the concept that speed matters and ignore those platitudes that

Re: CSV readers and UTF-8 files

On Feb 19, 7:21 am, mk wrote: > Hello everyone, > > Is it just me or CSV reader/DictReader and UTF-8 files do not work > correctly in Python 2.6.1 (Windows)? I would point out in the CSV module documentation (http:// docs.python.org/library/csv.html) it explicitly mentions that it can't handle un

Re: urllib2 - 403 that _should_ not occur.

On Jan 11, 6:59 pm, "James Mills" wrote: > Hey all, > > The following fails for me: > > >>> from urllib2 import urlopen > >>> f = > >>> urlopen("http://groups.google.com/group/chromium-announce/feed/rss_v2_0_msgs.xml";) For what it's worth, I've had a similar problem with the urlopen as well. Us

Re: Is there a better/simpler way to filter blank lines?

On Nov 4, 3:30 pm, tmallen <[EMAIL PROTECTED]> wrote: > On Nov 4, 4:30 pm, [EMAIL PROTECTED] wrote: > > > tmallen: > > > > I'm parsing some text files, and I want to strip blank lines in the > > > process. Is there a simpler way to do this than what I have here? > > > lines = filter(lambda line: le

Re: iterate start at second row in file not first

On May 20, 12:34 pm, [EMAIL PROTECTED] wrote: > how do i jump the first step there? i dont want to iterate the first > row...how do i start at the second? To simply bypass the first line, do a readline() on the file object before starting to process the file. To filter out particular lines throug

Re: os.fork leaving processes behind

On Dec 28, 12:11 am, "Gabriel Genellina" <[EMAIL PROTECTED]> wrote: > I'd try to use any of the existing server implementations in > SocketServer.py, but if you insist on using your own, look at the > ForkingMixin class as an example of using waitpid() to avoid having zombie > processes. > > -- > G

os.fork leaving processes behind

Hi all, This may be more of a Linux question, but it relates to how Python forks... Today, I implemented a pretty simple listener script using os.fork. The script runs fine, and performs as expected, but the process table is left with an odd entry for every fork called. I'm running on Slackware

Functions as Objects, and persisting values

Please help me understand the mechanics of the following behavior. >>> def d(): header = 'I am in front of ' def e(something): print header + something return e >>> f = d() >>> f('this') I am in front of this >>> del(d) >>> f('this') I am in front of this

Re: HTML Parser for Jython

On Oct 17, 9:50 am, Carsten Haese <[EMAIL PROTECTED]> wrote: > Recent releases of BeautifulSoup need Python 2.3+, so they won't work on > current Jython, but BeatifulSoup 1.x will work. Thank you. -- http://mail.python.org/mailman/listinfo/python-list

HTML Parser for Jython

Does anybody know of a decent HTML parser for Jython? I have to do some screen scraping, and would rather use a tested module instead of rolling my own. Thanks! GP -- http://mail.python.org/mailman/listinfo/python-list

Re: Copy List

On Jul 18, 6:56 am, "Rustom Mody" <[EMAIL PROTECTED]> wrote: > This is shallow copy > If you want deep copy then > from copy import deepcopy What will a "deep copy" of a list give you that using the slice notation will not? -- http://mail.python.org/mailman/listinfo/python-list

Re: Python's "only one way to do it" philosophy isn't good?

On Jul 5, 10:30 am, "Chris Mellon" <[EMAIL PROTECTED]> wrote: > > I don't think anyone has suggested that. Let me be clear about *my* > position: When you need to ensure that a file has been closed by a > certain time, you need to be explicit about it. When you don't care, > just that it will be cl

Re: appending file

On Jun 29, 1:04 pm, Kuo <[EMAIL PROTECTED]> wrote: > # FPGA CLOCK^M > NET "SYSCLK_A" loc = N16 | TNM_NET = SYSCLK_A;^M > NET "SYSCLK_AN" loc = M16 | TNM_NET = SYSCLK_A;^M I see those bloody ^M's anytime I have to deal with a DOS file (since it's the carrage return \r character). Is 'pin' a DOS

Capturing stdout from a class method

I have a rather strange situation, and I'm not sure my brief experience of Python will let me handle it properly. The situation is this: I have a Java class "X" which I need to call in a Jython script. The output of "X" is sent to stdout using the java call System.out. I need to capture this outp

Re: The Modernization of Emacs: terminology buffer and keybinding

On Jun 22, 4:12 pm, Pascal Bourguignon <[EMAIL PROTECTED]> wrote: > Anything that the user have to do repeatitively with the GUI, like > copy-and-paste, or reformating of a lot of paragraphs or table > entries, and which is done automatically by writting a one-liner > program in emacs or shell. So

Re: The Modernization of Emacs: terminology buffer and keybinding

On Jun 22, 3:06 pm, Pascal Bourguignon <[EMAIL PROTECTED]> wrote: > How do you call a Mac user interface that let a user work during 3 > hours to do a simple modification to a MS-Word file that takes 15 > seconds to do with emacs or a simple unix script? Would you mind elaborating on *what* took 3

Re: Tailing a log file?

On Jun 22, 12:50 pm, "Kenji Noguchi" <[EMAIL PROTECTED]> wrote: > > I checked the source code for tail and they actually poll the file by > > using fstat and sleep to check for changes in the file size. This > > didn't seem right so I thought about it more and realized I ought to > > be using inoti

Re: The Modernization of Emacs: terminology buffer and keybinding

On Jun 22, 11:28 am, Robert Uhl <[EMAIL PROTECTED]> wrote: > That's the advantage of a well-organised set of commands. If you want > to use regexp search, you have to look at the dialogue box and click on > a checkbox--which would be a context switch. Again, you are assuming that the editor isn't

Re: The Modernization of Emacs: terminology buffer and keybinding

On Jun 21, 2:10 pm, Kaldrenon <[EMAIL PROTECTED]> wrote: > I don't think anyone can make the argument that any (past or current) > graphics-based editor is as efficient when being used to its fullest > as a text-based editor. It's basic math - it takes measurably more > time to move a hand to the m

Re: The Modernization of Emacs: terminology buffer and keybinding

On Jun 21, 10:09 am, Robert Uhl <[EMAIL PROTECTED]> wrote: > You're quite right. Windows/Mac user interfaces are so clunky that they > massively hamper productivity. Emacs, OTOH, enables it. For example, > C-s is search forward; C-r is search backward ('reverse'); C-M-s is > search forward for a