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<body>
<main id="xaal-python-stack">
<h1 class="title">xAAL Python stack</h1>
<section id="requirements">
<h2><span class="sectnum">1 </span>Requirements</h2>
<p>To install xAAL for Python, you need Python-3 (version 3.8 or above). And limited stack exists
for Python-2, you can find more informations <a class="reference external" href="https://redmine.imt-atlantique.fr/projects/xaal/repository/xaal/show/code/Python/branches/py2-backport">here</a>.</p>
<section id="un-x-like">
<h3><span class="sectnum">1.1 </span>Un*x like</h3>
<p>Install the following packages:</p>
<ul class="simple">
<li><p>subversion</p></li>
<li><p>python3-dev</p></li>
<li><p>python3-setuptools</p></li>
<li><p>libsodium-dev</p></li>
</ul>
<p>For Debian / Ubuntu users:</p>
<pre class="code bash literal-block"><code>$ apt-get install subversion python3-dev libsodium-dev python3-setuptools gcc
<span class="comment single"># recommended
</span>$ apt-get install python3-venv python3-pip</code></pre>
</section>
<section id="windows">
<h3><span class="sectnum">1.2 </span>Windows</h3>
<p>This code can be used w/ Windows (tested w/ Win10 and Python 3.8). You can build
the virtualenv with the same way. To activate the venv, you should run Scriptsactivate.bat.
For Powershell users (recommanded), you must tweak the ExecutionPolicy to be able to run
<em>Activate.ps1</em>.</p>
<blockquote>
<pre class="code literal-block"><code>Set-ExecutionPolicy -ExecutionPolicy RemoteSigned -Scope CurrentUser</code></pre>
</blockquote>
<p>To install libsodium. You can dowload it here: <a class="reference external" href="https://download.libsodium.org/libsodium/releases/">https://download.libsodium.org/libsodium/releases/</a>
Extract the DLL from the zip file (libsodium-x.y.z-stable-msvc.ziplibsodiumx64Releasevzzzdynamic)
in the Win32 DLL folder.</p>
<p>If everything is fine, you can use exactly the same commands on Un*x and Windows. The xaal-* commands
are just renamed with an exe extension (ie: xaal-dumper.exe)</p>
<p><strong>Issues:</strong> Right now some gateways won't work on Windows due to missing libaries (openZwave ie)</p>
</section>
</section>
<section id="installation">
<h2><span class="sectnum">2 </span>Installation</h2>
<section id="manual">
<h3><span class="sectnum">2.1 </span>Manual</h3>
<p>Right now, there is no public release (pip based) of xAAL Python binding, so
you have to install things from SVN or archive.</p>
<p>You can use virtualenv (recommended).</p>
<p>First build a virtualenv :</p>
<pre class="code bash literal-block"><code>$ python3 -m venv xaal_env</code></pre>
<p>Everytime, you want to use the binding, you must source the activate script.</p>
<pre class="code bash literal-block"><code>$ <span class="name builtin">source</span> xaal_env/bin/activate</code></pre>
<p>Download sources from SVN:</p>
<pre class="code bash literal-block"><code>$ svn checkout https://redmine.imt-atlantique.fr/svn/xaal/code/Python/branches/0.7/ xaal_svn</code></pre>
<p>First, install the xaal.lib package:</p>
<pre class="code bash literal-block"><code>$ <span class="name builtin">cd</span> xaal_svn/libs/lib/
$ pip install .</code></pre>
<p>Install the monitor lib (needed by Dashboard, REST API..)</p>
<pre class="code bash literal-block"><code>$ <span class="name builtin">cd</span> xaal_svn/libs/monitor/
$ pip install -e .</code></pre>
<p>Install the schemas (needed by some devices)</p>
<pre class="code bash literal-block"><code>$ <span class="name builtin">cd</span> xaal_svn/libs/schemas/
$ pip install -e .</code></pre>
<p>Install the tools</p>
<pre class="code bash literal-block"><code>$ <span class="name builtin">cd</span> xaal_svn/apps/tools
$ pip install -e .</code></pre>
<dl class="simple">
<dt>You can remove the <em>-e</em> in pip install command , but modification in source files</dt>
<dd><p>won't be applied, you have to re-install it. Right now, <em>-e</em> is the best option.</p>
</dd>
</dl>
<p>Create the configuration file in your home directory:</p>
<pre class="code bash literal-block"><code>$ mkdir ~/.xaal/
$ cp xaal_svn/libs/lib/xaal.ini.sample ~/.xaal/xaal.ini
$ xaal-keygen</code></pre>
<p>xaal-keygen will compute an key for a given passphrase. Edit the xaal.ini
file according to your needs.</p>
</section>
<section id="automatic">
<h3><span class="sectnum">2.2 </span>Automatic</h3>
<p>Instead of manual installation of each package, you can use the <em>install.py</em> script.
This script will install allmost all packages without user interaction.</p>
</section>
<section id="docker">
<h3><span class="sectnum">2.3 </span>Docker</h3>
<p>The docker folder contains an Dockerfile to run the xALL software in a docker
container. The Dockerfile use the automatic installation script.</p>
</section>
</section>
<section id="tests">
<h2><span class="sectnum">3 </span>Tests</h2>
<p>First, you can launch a message dumper with this tools</p>
<pre class="code bash literal-block"><code>$ xaal-dumper
$ or xaal-tail</code></pre>
<p>To start an fake lamp:</p>
<pre class="code bash literal-block"><code>$ python -m xaal.dummy.lamp</code></pre>
<p>To check devices, you can use:</p>
<pre class="code bash literal-block"><code><span class="comment single"># search alive devices
</span>$ xaal-isalive
<span class="comment single"># search lamp.basic devices
</span>$ xaal-isalive -t lamp.basic
<span class="comment single"># search any kind of lamp
</span>$ xaal-isalive -t lamp.any
<span class="comment single"># display description / attribute
</span>$ xaal-info xxxxxxxxxxxxxx &lt;- uuid
<span class="comment single"># display description / attribute for all devices
</span>$ xaal-walker
<span class="comment single"># same but only for lamp devices
</span>$ xaal-walker -t lamp.any</code></pre>
<p>To turn on/off the lamp</p>
<pre class="code bash literal-block"><code><span class="comment single"># turn on the lamp
</span>$ xaal-send -d xxxxxxxxxxxxxx -r turn_off
$ xaal-send -d xxxxxxxxxxxxxx -r turn_on</code></pre>
</section>
<section id="informations">
<h2><span class="sectnum">4 </span>Informations</h2>
<section id="coding-style">
<h3><span class="sectnum">4.1 </span>Coding style</h3>
<p>Every xAAL package (device, gateway, app) use a namespace. For example, <em>xaal.rest</em>,
or <em>xaal.zwave</em>. By convention, you can run everything just by calling the namespace
module.</p>
<pre class="code bash literal-block"><code><span class="comment single"># to run the meta data sever:
</span>$ python -m xaal.metadb
<span class="comment single"># to run the dashboard (web interface)
</span>$ python -m xaal.dashboard
<span class="comment single"># to run the Open Weather Map gateway
</span>$ python -m xaal.owm</code></pre>
<p>To reduce memory footprint, you can use the <em>xaal-pkgrun</em> command. This tool will
register every package on a single Python interpreter.</p>
<pre class="code bash literal-block"><code><span class="comment single"># to run aqara and owm gateways:
</span>$ xaal-pkgrun aqara owm</code></pre>
</section>
<section id="links">
<h3><span class="sectnum">4.2 </span>Links</h3>
<ul class="simple">
<li><p>The repository contains a large number of devices, gateways and tools. You can find
the <a class="reference external" href="packages.html">packages list here</a>.</p></li>
<li><p>You can find the <a class="reference external" href="./libs/lib/README.html">xAAL lib documentation here.</a></p></li>
</ul>
</section>
<section id="notes">
<h3><span class="sectnum">4.3 </span>Notes</h3>
<ul class="simple">
<li><p>If you use xAAL on multiple hosts, take care of the system clock. xAAL use
date/time to cypher the messages. If clocks differs, you will receive an error
message about a &quot;replay attack&quot;. In production, NTP is your best friend. A window
of 1 minutes is accepted, but no more.</p></li>
</ul>
</section>
<section id="faq">
<h3><span class="sectnum">4.4 </span>FAQ</h3>
<ul>
<li><p>Configuration files are hard to read / edit. Why don't you use YAML or XML
for config ?</p>
<p>First, we need something that support nested config so we can not use
ConfigParser. Next, we tested severals YAML packages, but they are really
slow to import. We want xAAL stack to load as fast as possible, and importing
big packages (like PyYAML) take around 0.5 sec on a Raspy. This is way too
much for a simple command-line tools like xaal-info for example.
We want to provide a better user experience.</p>
</li>
</ul>
</section>
</section>
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</body>
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