http://code.activestate.com/recipes/tags/meta:license=cc0/2017-05-13T12:12:30-07:00ActiveState Code Recipes2017-05-13T12:12:30-07:00Barry Walkerhttp://code.activestate.com/recipes/users/4177147/http://code.activestate.com/recipes/580801-a-white-noise-generator-to-sooth-baby-to-sleep/

<p style="color: grey"> Bash recipe 580801 by <a href="/recipes/users/4177147/">Barry Walker</a> (<a href="/recipes/tags/alarm/">alarm</a>, <a href="/recipes/tags/apple/">apple</a>, <a href="/recipes/tags/audio/">audio</a>, <a href="/recipes/tags/baby_alarm/">baby_alarm</a>, <a href="/recipes/tags/cygwin/">cygwin</a>, <a href="/recipes/tags/linux/">linux</a>, <a href="/recipes/tags/noise/">noise</a>, <a href="/recipes/tags/sleep/">sleep</a>, <a href="/recipes/tags/sound/">sound</a>, <a href="/recipes/tags/whitenoise/">whitenoise</a>). </p> <p>This is a simple BASH, DASH and SH script to sooth a newborn baby to sleep for a laptop with a builtin mic. Develeoped around an Apple MacBook Pro.</p> <p>Usage:- [./]shush.sh &lt;time in seconds from 18 to 2700&gt; [sensitivity [Hh|Mm|Ll]]&lt;CR&gt;</p> <p>If time is omitted it defaults to 2 bursts of 9 seconds each and if sensitivity is omitted defaults to [M]edium.</p> <p>It uses Quicktime Player for Apple OSX 10.12.4 minimum /dev/dsp for CygWin and some Linux flavours and arecored for Linux ALSA machines for baby awake detector.</p> <p>Upon the two arguments the white noise generator runs for approximately the time given in $1 in bursts of 9 seconds until the time limit is reached. $2 is used to detect of baby is awake and reruns the noise generator again with a new noise waveform.</p> <p>Enjoy...</p>

2017-04-08T16:40:25-07:00John Brearleyhttp://code.activestate.com/recipes/users/4184423/http://code.activestate.com/recipes/580776-recursive-fcdiff-for-windows-optionally-copy-missi/

<p style="color: grey"> Tcl recipe 580776 by <a href="/recipes/users/4184423/">John Brearley</a> (<a href="/recipes/tags/compare/">compare</a>, <a href="/recipes/tags/file/">file</a>, <a href="/recipes/tags/tcl/">tcl</a>). </p> <p>Utility to add recursive capability to fc.exe on Windows. Will optionally copy/update missing or older files as needed. If you have a diff.exe in your path, say from having installed TkDiff utility, the diff.exe will be used as the prirmary compare tool, with fc.exe as the backup tool.</p>

2017-04-10T13:51:58-07:00John Brearleyhttp://code.activestate.com/recipes/users/4184423/http://code.activestate.com/recipes/580779-diff_copytcl-utility-for-daily-differential-backup/

<p style="color: grey"> Tcl recipe 580779 by <a href="/recipes/users/4184423/">John Brearley</a> (<a href="/recipes/tags/backup/">backup</a>, <a href="/recipes/tags/daily/">daily</a>, <a href="/recipes/tags/tcl/">tcl</a>). </p> <p>When you have terrabytes of data with 100,000+ files, it is no longer practical to blindly copy the entire data structure on a daily basis. I wrote this utility diff_copy.tcl to sort out what has been changed/updated and what new files have been added and only copy the changed &amp; new items. If the date/time of the source file is newer, the file will be copied. If the date/time of the source file is the same as the destination, the file sizes in bytes are checked to decide if a copy is necessary. If the source file is not present on the destination directory, the file is copied. There are options to remove old files from the destination directory or show what would be copied, but not actually do the copy.</p>

2014-03-01T18:56:19-08:00Andrea Corbellinihttp://code.activestate.com/recipes/users/4186880/http://code.activestate.com/recipes/578838-rsa-a-simple-and-easy-to-read-implementation/

<p style="color: grey"> Python recipe 578838 by <a href="/recipes/users/4186880/">Andrea Corbellini</a> (<a href="/recipes/tags/encryption/">encryption</a>, <a href="/recipes/tags/learning/">learning</a>, <a href="/recipes/tags/rsa/">rsa</a>, <a href="/recipes/tags/security/">security</a>). </p> <p>This is a really simple RSA implementation. It does not want to be neither fast nor safe; it's aim is to provide a working and easy to read codebase for people interested in discovering the RSA algorithm.</p>

2017-01-20T22:17:23-08:00Barry Walkerhttp://code.activestate.com/recipes/users/4177147/http://code.activestate.com/recipes/580750-a-pseudo-echo-or-printf-function-for-any-python-ve/

<p style="color: grey"> Python recipe 580750 by <a href="/recipes/users/4177147/">Barry Walker</a> (<a href="/recipes/tags/amiga/">amiga</a>, <a href="/recipes/tags/apple/">apple</a>, <a href="/recipes/tags/demo/">demo</a>, <a href="/recipes/tags/echo/">echo</a>, <a href="/recipes/tags/fs_uae/">fs_uae</a>, <a href="/recipes/tags/linux/">linux</a>, <a href="/recipes/tags/printf/">printf</a>, <a href="/recipes/tags/unix/">unix</a>, <a href="/recipes/tags/windows/">windows</a>, <a href="/recipes/tags/winuae/">winuae</a>). </p> <p>A simple example of having a pseudo-echo using sys.stdout.write...</p> <p>This gives exactly the same results from Python Versions, 1.4.0, 2.0.1, 2.5.6, 2.6.9, 3.4.3 and 3.5.2 on various platforms including the classic AMIGA A1200.</p> <p>Enjoy finding simple solutions to often very difficult problems...</p> <p>Bazza.</p>

2016-09-19T13:24:37-07:00Barry Walkerhttp://code.activestate.com/recipes/users/4177147/http://code.activestate.com/recipes/580697-a-simple-raw-hexdumper/

<p style="color: grey"> Python recipe 580697 by <a href="/recipes/users/4177147/">Barry Walker</a> (<a href="/recipes/tags/amiga/">amiga</a>, <a href="/recipes/tags/apple/">apple</a>, <a href="/recipes/tags/fs_uae/">fs_uae</a>, <a href="/recipes/tags/hex/">hex</a>, <a href="/recipes/tags/hexdump/">hexdump</a>, <a href="/recipes/tags/linux/">linux</a>, <a href="/recipes/tags/macbook_pro/">macbook_pro</a>, <a href="/recipes/tags/raw_hexdump/">raw_hexdump</a>, <a href="/recipes/tags/unix/">unix</a>, <a href="/recipes/tags/windows/">windows</a>, <a href="/recipes/tags/winuae/">winuae</a>). </p> <p>This is not a hexreader. This code creates a raw hexdump of a binary file that is whitespace, optional, delimited. The dump is saved into the current directory with a ".hex" extension.</p> <p>It works on just about any current platform but is designed around a stock Amiga A1200(HD) with Python 1.4.0. It also works on the current stable version 3.5.2.</p> <p>I needed a hexdump some years ago for banging the Amiga hardware, and decided to modify recently for another usage but it had to still work on version 1.4.0 for the classic A1200.</p> <p>Enjoy...</p>

2015-09-18T15:04:09-07:00mai3ahttp://code.activestate.com/recipes/users/4192857/http://code.activestate.com/recipes/579100-10-lines-for-a-beginner-to-try-out-the-spyder-ide-/

<p style="color: grey"> Python recipe 579100 by <a href="/recipes/users/4192857/">mai3a</a> (<a href="/recipes/tags/error/">error</a>, <a href="/recipes/tags/snippet/">snippet</a>, <a href="/recipes/tags/spyder/">spyder</a>, <a href="/recipes/tags/stuffthatworks/">stuffthatworks</a>). </p> <p>This python code generates no lint errors and just print out a few numbers.</p> <p>Useful if you use the Spyder IDE for the first time, which provides NOTHING to get you started.</p>

2014-12-14T16:23:44-08:00Malcolm Jeremy Lewishttp://code.activestate.com/recipes/users/4191332/http://code.activestate.com/recipes/578980-tictactoe/

<p style="color: grey"> Python recipe 578980 by <a href="/recipes/users/4191332/">Malcolm Jeremy Lewis</a> (<a href="/recipes/tags/tic/">tic</a>). </p> <p>A simple TicTacToe script including AI (Artificial Intelligence)</p>

2014-11-30T00:46:28-08:00manuhttp://code.activestate.com/recipes/users/4191225/http://code.activestate.com/recipes/578972-get-external-ip-geolocation-in-bash/

<p style="color: grey"> Bash recipe 578972 by <a href="/recipes/users/4191225/">manu</a> (<a href="/recipes/tags/bash/">bash</a>, <a href="/recipes/tags/geocoding/">geocoding</a>, <a href="/recipes/tags/geolocation/">geolocation</a>). Revision 2. </p> <p>Very simple way to get external IP and geolocation uysing dig and geoiplookup.</p> <p><code>dig</code> is cool to obtain my external IP and I use <code>geoiplookup</code> to convert IP to location. You need geoip-bin and, geoip-database (and/or geoip-database-contrib and geoip-database-extra). In Debian, database seems update monthly.</p> <p>It's just a tip.</p>

2014-09-06T13:36:35-07:00Mike Manilonehttp://code.activestate.com/recipes/users/4190728/http://code.activestate.com/recipes/578929-a-simple-calculator/

<p style="color: grey"> Tcl recipe 578929 by <a href="/recipes/users/4190728/">Mike Manilone</a> (<a href="/recipes/tags/calculator/">calculator</a>, <a href="/recipes/tags/gui/">gui</a>). </p> <p>A simple calculator. Calculation is done by [expr].</p>

2014-09-16T22:27:04-07:00Barry Walkerhttp://code.activestate.com/recipes/users/4177147/http://code.activestate.com/recipes/578934-a-fun-perfect-square-checker-using-integer-arithme/

<p style="color: grey"> Bash recipe 578934 by <a href="/recipes/users/4177147/">Barry Walker</a> (<a href="/recipes/tags/arithmetic/">arithmetic</a>, <a href="/recipes/tags/bash/">bash</a>, <a href="/recipes/tags/check/">check</a>, <a href="/recipes/tags/checker/">checker</a>, <a href="/recipes/tags/cygwin/">cygwin</a>, <a href="/recipes/tags/macbook_pro/">macbook_pro</a>, <a href="/recipes/tags/math/">math</a>, <a href="/recipes/tags/mathematics/">mathematics</a>, <a href="/recipes/tags/perfect/">perfect</a>, <a href="/recipes/tags/root/">root</a>, <a href="/recipes/tags/square/">square</a>). </p> <p>A recent Python upload here gave me the inspiration to do a bash version... This is a little tongue-in-cheek but an enjoyable bit of fun.</p> <p>It took around 11 seconds to prove 90000000000 had a perfect square of 300000...</p> <p>It is a stand alone program and has a degree of INPUT error correction...</p> <p>It was done on a MacBook Pro, OSX 10.7.5, default bash terminal and should work on Linux flavours but it is untested...</p> <p>Enjoy finding simple solutions to often very difficult problems...</p> <p>Bazza...</p>

2014-08-12T20:57:39-07:00Barry Walkerhttp://code.activestate.com/recipes/users/4177147/http://code.activestate.com/recipes/578921-simple-bash-text-mode-sine-curve-generator/

<p style="color: grey"> Bash recipe 578921 by <a href="/recipes/users/4177147/">Barry Walker</a> (<a href="/recipes/tags/apple/">apple</a>, <a href="/recipes/tags/bash/">bash</a>, <a href="/recipes/tags/cygwin/">cygwin</a>, <a href="/recipes/tags/graph/">graph</a>, <a href="/recipes/tags/linux/">linux</a>, <a href="/recipes/tags/macbook_pro/">macbook_pro</a>, <a href="/recipes/tags/text/">text</a>). Revision 2. </p> <p>This bash script is a taster for a kids level, audio, text mode, sweep generator. The code just creates a single cycle of a quantised sine curve inside an 80 x 24 bash terminal. This will be the calculator for a sinewave sweep generator from about 50Hz the 12KHz... The code tells you more and the display is in comments at the end...</p>

2014-09-05T13:33:13-07:00Mike Manilonehttp://code.activestate.com/recipes/users/4190728/http://code.activestate.com/recipes/578927-stopwatch-in-26-lines/

<p style="color: grey"> Tcl recipe 578927 by <a href="/recipes/users/4190728/">Mike Manilone</a> (<a href="/recipes/tags/gui/">gui</a>, <a href="/recipes/tags/time/">time</a>). </p> <p>This stopwatch works on Tcl/Tk 8.5 and higher. It makes use of the [clock] command and reduced the amount of code by -textvariable. A simple one, indeed. Nevertheless, it is still easy-to-read and easy-to-understand and it does show the power that Tcl has.</p>

2014-02-27T19:36:17-08:00Barry Walkerhttp://code.activestate.com/recipes/users/4177147/http://code.activestate.com/recipes/578837-a-bash-beep-command-for-osx-107/

<p style="color: grey"> Bash recipe 578837 by <a href="/recipes/users/4177147/">Barry Walker</a> (<a href="/recipes/tags/apple/">apple</a>, <a href="/recipes/tags/audio/">audio</a>, <a href="/recipes/tags/bash/">bash</a>, <a href="/recipes/tags/beep/">beep</a>, <a href="/recipes/tags/error_beep/">error_beep</a>, <a href="/recipes/tags/error_sound/">error_sound</a>, <a href="/recipes/tags/linux/">linux</a>, <a href="/recipes/tags/macbook_pro/">macbook_pro</a>, <a href="/recipes/tags/sound/">sound</a>). </p> <p>This small bash script generates an 8044 byte 1KHz sinewave wave file and immediately plays it. The file created is a _pure_ sinewave and lasts for 1 second. It uses the default "afplay" command to run the generated file.</p> <p>It was designed around an Apple Macbook Pro but using "aplay" it might even work on other *nix flavours from the command line. I have not bothered to try it as this was purely for my MB Pro.</p> <p>The wave file can be found as "/tmp/sinewave.wav" during the working session(s) and can be saved anywhere of your choice.</p> <p>Enjoy...</p> <p>(Watch for word wrapping etc...)</p> <p>Bazza.</p>

2014-03-08T21:17:41-08:00Charles Grunwaldhttp://code.activestate.com/recipes/users/4175823/http://code.activestate.com/recipes/578849-reimplementation-of-rmtree-supporting-windows-repa/

<p style="color: grey"> Python recipe 578849 by <a href="/recipes/users/4175823/">Charles Grunwald</a> (<a href="/recipes/tags/ctypes/">ctypes</a>, <a href="/recipes/tags/directories/">directories</a>, <a href="/recipes/tags/files/">files</a>, <a href="/recipes/tags/remove/">remove</a>, <a href="/recipes/tags/win32/">win32</a>). Revision 3. </p> <p>Ctypes-based implementation of shutil.rmtree that correctly handles Windows reparse point folders. (symbolic links, junctions, etc)</p>

2014-01-21T19:07:49-08:00Barry Walkerhttp://code.activestate.com/recipes/users/4177147/http://code.activestate.com/recipes/578812-simple-text-mode-digital-oscilloscope-graphics-dem/

<p style="color: grey"> Python recipe 578812 by <a href="/recipes/users/4177147/">Barry Walker</a> (<a href="/recipes/tags/apple/">apple</a>, <a href="/recipes/tags/demo/">demo</a>, <a href="/recipes/tags/graphics/">graphics</a>, <a href="/recipes/tags/linux/">linux</a>, <a href="/recipes/tags/macbook_pro/">macbook_pro</a>). </p> <p>This is a DEMO to switch a *NIX terminal from text to _graphics_ mode on the fly.</p> <p>The graphics characters are limited to lowercase 'a' through 'z' and this DEMO just prints a small subset to see what a fun, kids level, 8 channel Logic-Analyser/Digital-Oscilloscope might look like.</p> <p>This may not work in every *NIX style terminal but does work on default terminals using bash on OSX 10.7.5, PCLinuxOS 2009 and Debian Linux 6.0.x.</p> <p>Tested on Python 2.5.x to 3.3.2 on the above platforms... (It might work on earlier versions of Python but untested.)</p> <p>Enjoy finding simple solutions to often very difficult problems...</p> <p>Bazza...</p>

2013-12-14T00:28:36-08:00Ádám Szieberthhttp://code.activestate.com/recipes/users/4188745/http://code.activestate.com/recipes/578787-pretty-and-stated-htmlparsers/

<p style="color: grey"> Python recipe 578787 by <a href="/recipes/users/4188745/">Ádám Szieberth</a> (<a href="/recipes/tags/html/">html</a>, <a href="/recipes/tags/htmlparser/">htmlparser</a>, <a href="/recipes/tags/state/">state</a>). Revision 2. </p> <p>Extensions of html.parser.HTMLParser().</p> <p>PrettyHTMLParser() does not splits data into chuncks by HTML entities. StatedHTMLParser() can have many state-dependent handlers which helps parsing HTML pages alot.</p>

2013-12-09T20:05:49-08:00Barry Walkerhttp://code.activestate.com/recipes/users/4177147/http://code.activestate.com/recipes/578781-a-simple-shell-script-to-keep-the-wife-off-of-your/

<p style="color: grey"> Bash recipe 578781 by <a href="/recipes/users/4177147/">Barry Walker</a> (<a href="/recipes/tags/apple/">apple</a>, <a href="/recipes/tags/bash/">bash</a>, <a href="/recipes/tags/linux/">linux</a>, <a href="/recipes/tags/macbook_pro/">macbook_pro</a>, <a href="/recipes/tags/reminder/">reminder</a>, <a href="/recipes/tags/script/">script</a>, <a href="/recipes/tags/shell/">shell</a>). </p> <p>How many times have you been asked to remember to do something from the other half whilst she is out for a short while.</p> <p>For example: "You WILL check the dinner every few minutes won't you?"</p> <p>And how many times did/do you forget?</p> <p>Most of us have been there...</p> <p>This is a simple kids level, practical learning, shell script that generates an "xterm" with your reminder inside every 30 seconds for a period of 3 seconds.</p> <p>It is always be the active front window for 3 seconds at a time to _annoy_ you into remembering.</p> <p>Usage: reminder "What you have to remember here using spaces AND double quotes."&lt;CR&gt;</p> <p>Just reanme the downloaded script to reminder and remember to chmod it as required.</p> <p>Just run it from your default terminal and when finished press Ctrl-C just AFTER the xterm window closes.</p> <p>There is NO error detection so steer clear of any special characters in you reminder text.</p> <p>Enjoy finding simple solutions to often very difficult problems...</p>

2013-09-17T17:55:53-07:00Barry Walkerhttp://code.activestate.com/recipes/users/4177147/http://code.activestate.com/recipes/578662-a-demo-to-show-how-to-write-text-into-the-python-t/

<p style="color: grey"> Python recipe 578662 by <a href="/recipes/users/4177147/">Barry Walker</a> (<a href="/recipes/tags/apple/">apple</a>, <a href="/recipes/tags/bar/">bar</a>, <a href="/recipes/tags/cygwin/">cygwin</a>, <a href="/recipes/tags/demo/">demo</a>, <a href="/recipes/tags/linux/">linux</a>, <a href="/recipes/tags/macbook_pro/">macbook_pro</a>, <a href="/recipes/tags/title/">title</a>, <a href="/recipes/tags/title_bar/">title_bar</a>). </p> <p>This DEMO is show how to write some text of your choice into the Title Bar of the Python terminal window.</p> <p>Firstly it imports "time" just for this demo so that a simple time delay can be generated. Next the Python terminal window is written to for the 5 seconds of delay; see code. And finally the Title Bar is restored to normal...</p> <p>A snapshot image can be seen here:-</p> <p><a href="http://wisecracker.host22.com/public/Title_Bar.jpg" rel="nofollow">http://wisecracker.host22.com/public/Title_Bar.jpg</a></p> <p>Bazza...</p>

2013-12-02T09:50:55-08:00Bill Picketthttp://code.activestate.com/recipes/users/4174028/http://code.activestate.com/recipes/578778-holiday-tree/

<p style="color: grey"> Python recipe 578778 by <a href="/recipes/users/4174028/">Bill Pickett</a> (<a href="/recipes/tags/exercise/">exercise</a>). Revision 2. </p> <p>Just a little holiday tree, would make a good exercise for beginning Python programmers.</p>