 class="s1">&#39;</span><span class="se">\t\t</span><span class="s1"> ACCMAXSTEP was set to MAXSTEP!&#39;</span><span class="p">)</span>
        <span class="k">else</span><span class="p">:</span>
            <span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="s1">&#39;ERROR: Accumulation forecast step can not be&#39;</span>
                             <span class="s1">&#39;derived automatically!&#39;</span><span class="p">)</span>
    <span class="k">else</s