/p>

<h2>Install prerequisites</h2>
<p>Ensure that Python2 is installed. Python 2.6 or 2.7 will work,
    but Python 3 will not.</p>
<pre class='tty cmd'>python -V</pre>
<p>Install the required Python packages using easy_install:</p>
<pre class='tty cmd'>sudo easy_install pysqlite
sudo easy_install configobj
sudo easy_install Cheetah
sudo easy_install PIL
sudo easy_install pyserial
sudo easy_install pyusb
sudo easy_install pyephem</pre>
<p>Depending on the macOS and Python versions, you might have to use <s