s="n">required</span><span class="p">:</span>
        <span class="n">bot</span><span class="o">.</span><span class="n">error</span><span class="p">(</span><span class="s2">&quot;Cannot find environment variable </span><span class="si">%s</span><span class="s2">, exiting.&quot;</span> <span class="o">%</span> <span class="n">variable_key</span><span class="p">)</span>
        <span class="n">sys</span><span class="o">.</span><span class="n">exit</span><span class="p">(</span><span class="mi">1</span><span c