et_random_seed</span><span class="p">(</span><span class="n">seed</span><span class="p">):</span>
    <span class="k">if</span> <span class="n">seed</span> <span class="o">&gt;=</span> <span class="mi">0</span><span class="p">:</span>
        <span class="n">np</span><span class="o">.</span><span class="n">random</span><span class="o">.</span><span class="n">seed</span><span class="p">(</span><span class="n">seed</span><span class="p">)</span>
        <span class="n">random</span><span class="o">.</span><sp