Cu&quot;</span><span class="p">:</span>
        <span class="n">copper_list</span> <span class="o">=</span> <span class="p">[</span><span class="s2">&quot;cu_shfe&quot;</span><span class="p">,</span> <span class="s2">&quot;cu_lme&quot;</span><span class="p">,</span> <span class="s2">&quot;cu_comex_p&quot;</span><span class="p">,</span>
                       <span class="s2">&quot;cu_comex_s&quot;</span><span class="p">,</span> <span class="s2">&quot;peso&quot;</span><span class="p">,</span> <span class="s2