

        <p>With the introduction of explicit control of output units in the
            templates such as</p>

        <pre class="tty">$day.outTemp.max.degree_C</pre>

        <p>the calling signature of the following two Python classes was changed</p>
        <ul>
            <li><span class="code">weewx.stats.TaggedStats</span></li>
            <li><span class="code">weewx.stats.TimeSpanStats</span></li>
        </ul>
        <p>The example of writing a custom generator <span class="code">MyFileGenerat