francescomecca.eu/output/categories/mersenne-twister.xml

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<?xml-stylesheet type="text/xsl" href="../assets/xml/rss.xsl" media="all"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Caught in the Net (Posts about mersenne twister)</title><link>francescomecca.eu</link><description></description><atom:link href="francescomecca.eu/categories/mersenne-twister.xml" rel="self" type="application/rss+xml"></atom:link><language>en</language><copyright>Contents © 2021 &lt;a href="mailto:francescomecca.eu"&gt;Francesco Mecca&lt;/a&gt; </copyright><lastBuildDate>Thu, 02 Dec 2021 14:42:13 GMT</lastBuildDate><generator>Nikola (getnikola.com)</generator><docs>http://blogs.law.harvard.edu/tech/rss</docs><item><title>The Buridan's donkey in python</title><link>francescomecca.eu/blog/2016/4/2/buridan_donkey/</link><dc:creator>Francesco Mecca</dc:creator><description>&lt;div&gt;&lt;p&gt;During the final weeks of my exam session I started reading a bit about python 3 using an excellent book: &lt;a href="http://www.diveintopython.net/"&gt;Dive into Python&lt;/a&gt;.
When I noted that python uses the &lt;a href="https://en.wikipedia.org/wiki/Mersenne_Twister"&gt;Mersenne Twister PRNG&lt;/a&gt; as well I decided to write another version of my &lt;a href="http://francescomecca.eu/index.php/archives/207"&gt;Buridan's donkey program&lt;/a&gt;.&lt;/p&gt;
&lt;p&gt;.. code:: python&lt;/p&gt;
&lt;pre class="code literal-block"&gt;&lt;span&gt;&lt;/span&gt;    &lt;span class="s s-Atom"&gt;import&lt;/span&gt; &lt;span class="s s-Atom"&gt;random&lt;/span&gt;&lt;span class="p"&gt;,&lt;/span&gt; &lt;span class="s s-Atom"&gt;sys&lt;/span&gt;

    &lt;span class="s s-Atom"&gt;if&lt;/span&gt; &lt;span class="k"&gt;__&lt;/span&gt;&lt;span class="s s-Atom"&gt;name__&lt;/span&gt; &lt;span class="o"&gt;==&lt;/span&gt; &lt;span class="s s-Atom"&gt;'__main__':&lt;/span&gt;
        &lt;span class="s s-Atom"&gt;args&lt;/span&gt; &lt;span class="o"&gt;=&lt;/span&gt; &lt;span class="nf"&gt;list&lt;/span&gt;&lt;span class="p"&gt;()&lt;/span&gt;
        &lt;span class="s s-Atom"&gt;if&lt;/span&gt; &lt;span class="o"&gt;not&lt;/span&gt; &lt;span class="s s-Atom"&gt;sys&lt;/span&gt;&lt;span class="p"&gt;.&lt;/span&gt;&lt;span class="s s-Atom"&gt;stdin&lt;/span&gt;&lt;span class="p"&gt;.&lt;/span&gt;&lt;span class="nf"&gt;isatty&lt;/span&gt;&lt;span class="p"&gt;()&lt;/span&gt;&lt;span class="s s-Atom"&gt;:&lt;/span&gt;
            &lt;span class="s s-Atom"&gt;for&lt;/span&gt; &lt;span class="s s-Atom"&gt;line&lt;/span&gt; &lt;span class="s s-Atom"&gt;in&lt;/span&gt; &lt;span class="s s-Atom"&gt;sys&lt;/span&gt;&lt;span class="p"&gt;.&lt;/span&gt;&lt;span class="nn"&gt;stdin&lt;/span&gt;&lt;span class="p"&gt;:&lt;/span&gt;
                &lt;span class="s s-Atom"&gt;if&lt;/span&gt; &lt;span class="s s-Atom"&gt;line&lt;/span&gt;&lt;span class="p"&gt;[&lt;/span&gt;&lt;span class="o"&gt;-&lt;/span&gt;&lt;span class="mi"&gt;1&lt;/span&gt;&lt;span class="p"&gt;]&lt;/span&gt; &lt;span class="o"&gt;is&lt;/span&gt; &lt;span class="s s-Atom"&gt;'\n':&lt;/span&gt;
                    &lt;span class="s s-Atom"&gt;line&lt;/span&gt; &lt;span class="o"&gt;=&lt;/span&gt; &lt;span class="s s-Atom"&gt;line&lt;/span&gt;&lt;span class="p"&gt;[:-&lt;/span&gt;&lt;span class="mi"&gt;1&lt;/span&gt;&lt;span class="p"&gt;]&lt;/span&gt;
                &lt;span class="s s-Atom"&gt;args&lt;/span&gt;&lt;span class="p"&gt;.&lt;/span&gt;&lt;span class="nf"&gt;append&lt;/span&gt;&lt;span class="p"&gt;(&lt;/span&gt;&lt;span class="s s-Atom"&gt;line&lt;/span&gt;&lt;span class="p"&gt;)&lt;/span&gt;
        &lt;span class="nn"&gt;else&lt;/span&gt;&lt;span class="p"&gt;:&lt;/span&gt;
            &lt;span class="s s-Atom"&gt;args&lt;/span&gt; &lt;span class="o"&gt;=&lt;/span&gt; &lt;span class="s s-Atom"&gt;sys&lt;/span&gt;&lt;span class="p"&gt;.&lt;/span&gt;&lt;span class="s s-Atom"&gt;argv&lt;/span&gt;&lt;span class="p"&gt;[&lt;/span&gt;&lt;span class="mi"&gt;1&lt;/span&gt;&lt;span class="s s-Atom"&gt;:&lt;/span&gt;&lt;span class="p"&gt;]&lt;/span&gt;
        &lt;span class="s s-Atom"&gt;argRange&lt;/span&gt; &lt;span class="o"&gt;=&lt;/span&gt; &lt;span class="nf"&gt;len&lt;/span&gt;&lt;span class="p"&gt;(&lt;/span&gt;&lt;span class="s s-Atom"&gt;args&lt;/span&gt;&lt;span class="p"&gt;)&lt;/span&gt;
        &lt;span class="s s-Atom"&gt;for&lt;/span&gt; &lt;span class="s s-Atom"&gt;i&lt;/span&gt; &lt;span class="s s-Atom"&gt;in&lt;/span&gt; &lt;span class="nf"&gt;range&lt;/span&gt;&lt;span class="p"&gt;(&lt;/span&gt;&lt;span class="s s-Atom"&gt;argRange&lt;/span&gt;&lt;span class="p"&gt;)&lt;/span&gt;&lt;span class="s s-Atom"&gt;:&lt;/span&gt;
            &lt;span class="nf"&gt;print&lt;/span&gt;&lt;span class="p"&gt;(&lt;/span&gt;&lt;span class="nf"&gt;str&lt;/span&gt;&lt;span class="p"&gt;(&lt;/span&gt;&lt;span class="s s-Atom"&gt;i&lt;/span&gt;&lt;span class="o"&gt;+&lt;/span&gt;&lt;span class="mi"&gt;1&lt;/span&gt;&lt;span class="p"&gt;)&lt;/span&gt; &lt;span class="o"&gt;+&lt;/span&gt; &lt;span class="s s-Atom"&gt;'.'&lt;/span&gt;&lt;span class="p"&gt;,&lt;/span&gt; &lt;span class="s s-Atom"&gt;args&lt;/span&gt;&lt;span class="p"&gt;.&lt;/span&gt;&lt;span class="nf"&gt;pop&lt;/span&gt;&lt;span class="p"&gt;(&lt;/span&gt;&lt;span class="s s-Atom"&gt;random&lt;/span&gt;&lt;span class="p"&gt;.&lt;/span&gt;&lt;span class="nf"&gt;randrange&lt;/span&gt;&lt;span class="p"&gt;(&lt;/span&gt;&lt;span class="mi"&gt;0&lt;/span&gt;&lt;span class="p"&gt;,&lt;/span&gt; &lt;span class="nf"&gt;len&lt;/span&gt;&lt;span class="p"&gt;(&lt;/span&gt;&lt;span class="s s-Atom"&gt;args&lt;/span&gt;&lt;span class="p"&gt;))))&lt;/span&gt;
&lt;/pre&gt;


&lt;p&gt;This script works in a different way than the one in c++.
Rather than shuffling a list made by the entries in the arguments, it pops randomly one entry from the list till the list is empty.&lt;/p&gt;
&lt;p&gt;Not satisfied enough, I wrote also a telegram bot using the &lt;a href="https://github.com/eternnoir/pyTelegramBotAPI"&gt;telebot library&lt;/a&gt; that works as the script above but inside the telegram app.
The bot can be added to your contact list by simply searching for &lt;a href="http://telegram.me/duridan_donkey_bot"&gt;@duridan_donkey_bot&lt;/a&gt; (yes, a typo!)&lt;/p&gt;
&lt;p&gt;All the code is opensource and can be found on my github page.&lt;/p&gt;
&lt;p&gt;Francesco Mecca&lt;/p&gt;&lt;/div&gt;</description><category>buridan donkey</category><category>mersenne twister</category><category>PesceWanda</category><category>python</category><category>random</category><guid>francescomecca.eu/blog/2016/4/2/buridan_donkey/</guid><pubDate>Sat, 02 Apr 2016 00:00:00 GMT</pubDate></item></channel></rss>