</span>
<span class="sd">        True if pure forecasts are to be retrieved. False if there are</span>
<span class="sd">        analysis fields in between.</span>
<span class="sd">    &#39;&#39;&#39;</span>

    <span class="k">if</span> <span class="s1">&#39;AN&#39;</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">ftype</span> <span class="ow">and</span> <span class="s1">&#39;4V&#39;</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">ftype</span><span