><a href="#L-19"><span class="linenos">19</span></a>
</span><span id="L-20"><a href="#L-20"><span class="linenos">20</span></a>    <span class="n">fname</span> <span class="o">=</span> <span class="sa">f</span><span class="s2">&quot;</span><span class="si">{</span><span class="n">freq</span><span class="si">}</span><span class="s2">-prices.csv&quot;</span>
</span><span id="L-21"><a href="#L-21"><span class="linenos">21</span></a>    <span class="n">path</span> <span class="o">=</span> <span class="n">resour