 <span class="o">=</span> <span class="p">[]</span>
        <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="n">maxstep</span> <span class="o">+</span> <span class="mi">1</span><span class="p">):</span>
            <span class="n">nftype</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">ftype</span><span class="p">[