'>weewx-X.Y.Z.tar.gz</span> from <a
    href="https://weewx.com/downloads"><span class="code">weewx.com/downloads</span></a>.
</p>

<h2>Install prerequisites</h2>

<div id="prereq-tabs" class="tabs" style="width:95%; padding: 10px 10px 10px 10px;">
    <nav>
        <button class="tab" onclick="openTab(event, '#prereq-py2')">
            Python 2
        </button>

        <button class="tab" onclick="openTab(event, '#prereq-py3')">
            Python 3
        </button>
    </nav>
    <div id='prereq-py2' 