t">
        <p>Ensure that Python 2.7 is installed. Earlier versions will not work.</p>
        <pre class='tty cmd'>python2 -V</pre>
        <p>
            If not, it can be installed with:
        </p>
        <pre class="tty cmd">sudo yum install python2</pre>
        <p>
            Install the WeeWX pre-requisites:
        </p>
        <pre class='tty cmd'>sudo pip2 install configobj
sudo pip2 install Cheetah
sudo pip2 install Pillow
sudo pip2 install pyserial
sudo pip2 install pyusb

# For extended a