ass="p">,</span> <span class="n">zero</span> <span class="o">=</span> <span class="s1">&#39;X&#39;</span><span class="p">,</span> <span class="mi">0</span>

<span class="n">n_chrom</span>       <span class="o">=</span> <span class="mi">46</span>
<span class="n">nuc_type</span>      <span class="o">=</span> <span class="mi">5</span>
<span class="n">spe_type1</span>     <span class="o">=</span> <span class="mi">6</span>
<span class="n">spe_type2</span>     <span class="o">=</span> <span class="mi">7</span>
<s