Latest recipes tagged "threads" Code RecipesTail multiple pidgin IRC logfiles (Python) 2015-06-06T12:13:00-07:00Anton Vredegoor <p style="color: grey"> Python recipe 579066 by <a href="/recipes/users/2667360/">Anton Vredegoor</a> (<a href="/recipes/tags/colorize/">colorize</a>, <a href="/recipes/tags/irc/">irc</a>, <a href="/recipes/tags/iterators/">iterators</a>, <a href="/recipes/tags/logfiles/">logfiles</a>, <a href="/recipes/tags/merging/">merging</a>, <a href="/recipes/tags/nonblocking/">nonblocking</a>, <a href="/recipes/tags/pidgin/">pidgin</a>, <a href="/recipes/tags/tail/">tail</a>, <a href="/recipes/tags/threads/">threads</a>). Revision 2. </p> <p>Tail multiple pidgin IRC logfiles. </p> <p>Pidgin should be connected to IRC with the channels one wants to tail joined, and it should save logs as text.</p> <p>The script needs two arguments:</p> <pre class="prettyprint"><code>the directory containing the directories with channel logs a list of channel names, quoted and separated by spaces </code></pre> <p>Example command:</p> <p>python -d <a href="mailto:~/.purple/logs/irc/">~/.purple/logs/irc/</a> -c "#chan1 #chan2 #chan3"</p> <p>Some text elements are higlighted, and channel names are inserted into the log lines after the time info.</p> <p>If more than one channel is entered, the output of the logs is merged. </p> Creating a single instance application (Python) 2014-11-20T11:59:46-08:00Matteo Bertini <p style="color: grey"> Python recipe 578966 by <a href="/recipes/users/4191156/">Matteo Bertini</a> (<a href="/recipes/tags/threads/">threads</a>). </p> <p>Sometimes it is necessary to ensure that only one instance of application is running. This quite simple solution uses mutex to achieve this, and will run only on Windows platform.</p> Simple python thread manager (Python) 2012-12-17T16:19:12-08:00Tom Wissing <p style="color: grey"> Python recipe 578385 by <a href="/recipes/users/4184629/">Tom Wissing</a> (<a href="/recipes/tags/manager/">manager</a>, <a href="/recipes/tags/python/">python</a>, <a href="/recipes/tags/threading/">threading</a>, <a href="/recipes/tags/threads/">threads</a>). </p> <p>A simple python static class handling basic threading. Designed for "worker" threads that loop forever over a function and the like.</p> Simple python thread manager (Python) 2012-11-17T23:18:17-08:00Tino Deak <p style="color: grey"> Python recipe 578331 by <a href="/recipes/users/4184300/">Tino Deak</a> (<a href="/recipes/tags/manager/">manager</a>, <a href="/recipes/tags/python/">python</a>, <a href="/recipes/tags/threading/">threading</a>, <a href="/recipes/tags/threads/">threads</a>). </p> <p>A simple python static class handling basic threading. Designed for "worker" threads that loop forever over a function and the like.</p> Generic way to create a daemonized process in python (Python) 2012-03-26T14:56:17-07:00ajaymenon.k <p style="color: grey"> Python recipe 578072 by <a href="/recipes/users/4181225/">ajaymenon.k</a> (<a href="/recipes/tags/daemon/">daemon</a>, <a href="/recipes/tags/process/">process</a>, <a href="/recipes/tags/threads/">threads</a>). Revision 4. </p> <p>A simple daemon that will constantly keep track the size of your inbox and when it exceeds a certain size, will send you a reminder email.</p> Run async code inline, nonblocking (Python) 2011-11-23T10:13:31-08:00PRITAM K <p style="color: grey"> Python recipe 577959 by <a href="/recipes/users/4180048/">PRITAM K</a> (<a href="/recipes/tags/asynchronous/">asynchronous</a>, <a href="/recipes/tags/closure/">closure</a>, <a href="/recipes/tags/decorator/">decorator</a>, <a href="/recipes/tags/generator/">generator</a>, <a href="/recipes/tags/threads/">threads</a>). </p> <p>A decorator, that makes it easy to switch between the mainthread and background threads.</p> ProgressBar class (Python) 2011-10-27T06:16:29-07:00Petr Zizka <p style="color: grey"> Python recipe 577926 by <a href="/recipes/users/4179733/">Petr Zizka</a> (<a href="/recipes/tags/threads/">threads</a>). </p> <p>Progress bars are popular when trying to show how much of a job has been completed. In my case, it was encrypting and decrypting files. A GUI interface was written, but something was lacking. How was the user of the program supposed to know if the program was doing its job? A progress bar seemed like a good answer, so a simple GUI progress bar was written using Tkinter.</p> Reader-Writer lock with priority for writers (Python) 2011-09-28T21:45:04-07:00Mateusz Kobos <p style="color: grey"> Python recipe 577803 by <a href="/recipes/users/4178730/">Mateusz Kobos</a> (<a href="/recipes/tags/locking/">locking</a>, <a href="/recipes/tags/threads/">threads</a>). Revision 2. </p> <p>The following class implements a reader-writer lock to use in the second readers-writers problem with python threads. In this problem, many readers can simultaneously access a share, and a writer has an exclusive access to this share. Additionally, the following constraints should be met: 1) no reader should be kept waiting if the share is currently opened for reading unless a writer is also waiting for the share, 2) no writer should be kept waiting for the share longer than absolutely necessary.</p> Sleepsort (Python) 2011-06-17T05:17:22-07:00Raymond Hettinger <p style="color: grey"> Python recipe 577756 by <a href="/recipes/users/178123/">Raymond Hettinger</a> (<a href="/recipes/tags/sorting/">sorting</a>, <a href="/recipes/tags/threads/">threads</a>). Revision 2. </p> <p>Funky sort routine to demonstrate Python's threading basics.</p> Multi-threaded Mandelbrot Fractal (Python) 2011-05-01T17:33:20-07:00FB36 <p style="color: grey"> Python recipe 577680 by <a href="/recipes/users/4172570/">FB36</a> (<a href="/recipes/tags/fractal/">fractal</a>, <a href="/recipes/tags/graphics/">graphics</a>, <a href="/recipes/tags/image/">image</a>, <a href="/recipes/tags/math/">math</a>, <a href="/recipes/tags/mathematics/">mathematics</a>, <a href="/recipes/tags/thread/">thread</a>, <a href="/recipes/tags/threading/">threading</a>, <a href="/recipes/tags/threads/">threads</a>). Revision 3. </p> <p>Multi-threaded Mandelbrot Fractal.</p> POSIX Semaphore (FreeBSD) (Python) 2011-04-14T17:54:16-07:00David Naylor <p style="color: grey"> Python recipe 577655 by <a href="/recipes/users/4177661/">David Naylor</a> (<a href="/recipes/tags/ctypes/">ctypes</a>, <a href="/recipes/tags/freebsd/">freebsd</a>, <a href="/recipes/tags/semaphores/">semaphores</a>, <a href="/recipes/tags/signal/">signal</a>, <a href="/recipes/tags/threads/">threads</a>). </p> <p>POSIX Semaphore bindings for FreeBSD. </p> A multithreaded, concurrent version of map() (Python) 2010-08-16T23:04:48-07:00Wai Yip Tung <p style="color: grey"> Python recipe 577360 by <a href="/recipes/users/2382677/">Wai Yip Tung</a> (<a href="/recipes/tags/concurrency/">concurrency</a>, <a href="/recipes/tags/multithreading/">multithreading</a>, <a href="/recipes/tags/threads/">threads</a>). </p> <p>map() applies a function to a list of data sequentially. This is a variation to map that execute each function call concurrently in a thread.</p> Threadsafe observer pattern implemented as descriptor (Python) 2010-03-13T12:17:11-08:00Rodney Drenth <p style="color: grey"> Python recipe 577106 by <a href="/recipes/users/4050661/">Rodney Drenth</a> (<a href="/recipes/tags/descriptor/">descriptor</a>, <a href="/recipes/tags/observer/">observer</a>, <a href="/recipes/tags/publish/">publish</a>, <a href="/recipes/tags/subscribe/">subscribe</a>, <a href="/recipes/tags/threads/">threads</a>). </p> <p>This is a threadsafe version of <a href="">recipe 576979</a>. A publish-subscribe (observer) pattern is implemented as a descriptor. Assigning a value notifies the observers. Uses <a href="">recipe 577105</a> as and <a href="">recipe 576979</a> as</p> Synchronization Decorator for Class Methods (Python) 2010-03-13T10:11:07-08:00Rodney Drenth <p style="color: grey"> Python recipe 577105 by <a href="/recipes/users/4050661/">Rodney Drenth</a> (<a href="/recipes/tags/decorator/">decorator</a>, <a href="/recipes/tags/synchronize/">synchronize</a>, <a href="/recipes/tags/threads/">threads</a>). </p> <p>Synchronizes access to methods of a class with either an instance or class specific lock.</p> Run async code inline, nonblocking (Python) 2009-11-11T12:55:01-08:00Thomas Ahle <p style="color: grey"> Python recipe 576952 by <a href="/recipes/users/4060075/">Thomas Ahle</a> (<a href="/recipes/tags/asynchronous/">asynchronous</a>, <a href="/recipes/tags/closure/">closure</a>, <a href="/recipes/tags/decorator/">decorator</a>, <a href="/recipes/tags/generator/">generator</a>, <a href="/recipes/tags/threads/">threads</a>). Revision 7. </p> <p>A decorator, that makes it easy to switch between the mainthread and background threads.</p> Thread pool (grows on demand) (Python) 2009-11-03T02:28:12-08:00Pepe Aracil <p style="color: grey"> Python recipe 576910 by <a href="/recipes/users/4171769/">Pepe Aracil</a> (<a href="/recipes/tags/threading/">threading</a>, <a href="/recipes/tags/threads/">threads</a>, <a href="/recipes/tags/thread_pool/">thread_pool</a>). Revision 3. </p> <p>Thread pool that grows on demand.</p> Timeout for (nearly) any callable (Python) 2010-12-20T06:51:35-08:00Jean Brouwers <p style="color: grey"> Python recipe 576780 by <a href="/recipes/users/2984142/">Jean Brouwers</a> (<a href="/recipes/tags/threads/">threads</a>, <a href="/recipes/tags/timeout/">timeout</a>). Revision 5. </p> <p>This recipe provides 2 ways to invoke any callable with a time limit. Usable for Python 2.2 thru 3.0, see the Note in the module __doc__.</p> Heise mp3 downloader (Python) 2009-01-17T11:51:39-08:00d.schlabing <p style="color: grey"> Python recipe 576618 by <a href="/recipes/users/4168903/">d.schlabing</a> (<a href="/recipes/tags/oop/">oop</a>, <a href="/recipes/tags/script/">script</a>, <a href="/recipes/tags/threads/">threads</a>). </p> <p>This little script presents new heise-news-articles individually by title and asks if it should download the corresponding mp3-file.</p> Thread Pool (Python) 2008-11-30T05:42:59-08:00Louis RIVIERE <p style="color: grey"> Python recipe 576576 by <a href="/recipes/users/4035877/">Louis RIVIERE</a> (<a href="/recipes/tags/design_pattern/">design_pattern</a>, <a href="/recipes/tags/pool/">pool</a>, <a href="/recipes/tags/threads/">threads</a>, <a href="/recipes/tags/thread_pool/">thread_pool</a>). Revision 4. </p> <p>Easy to use Thread Pool with a dynamically adjustable pool size.</p> processing.Pool variation which allows multiple threads to send the same requests without incurring duplicate processing (Python) 2008-09-17T17:01:21-07:00david decotigny <p style="color: grey"> Python recipe 576462 by <a href="/recipes/users/4129454/">david decotigny</a> (<a href="/recipes/tags/map/">map</a>, <a href="/recipes/tags/parallel/">parallel</a>, <a href="/recipes/tags/pool/">pool</a>, <a href="/recipes/tags/processing/">processing</a>, <a href="/recipes/tags/threads/">threads</a>). Revision 3. </p> <p>processing.Pool (<a href="" rel="nofollow"></a>) is a nice tool to "parallelize" map() on multiple CPUs. However, imagine you have X threads which send the same request, [100000, 10000000, 10000]) at (almost) the same time. Obviously, you don't want to compute X times getNthPrimeNumber for 100000, 10000000, 10000... unless you have 3.X processors available. You would like one thread to submit the 3 requests, and then the X-1 others would notice that the requests have already been submitted and will then just wait for the result. This is what this code is about: a kind of "trensient memoize" for processing.Pool::imap().</p>