><span class="n">image_name</span><span class="p">)</span> <span class="o">+</span> <span class="s2">&quot;.&quot;</span> <span class="o">+</span> <span class="n">extension</span>
    <span class="n">fig</span><span class="o">.</span><span class="n">savefig</span><span class="p">(</span><span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">output_dir</span><span class="p">,</span> <span class="s2