umberOfTransaction</span> <span class="o">+=</span> <span class="mi">1</span>
            <span class="n">transaction</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">Database</span><span class="p">[</span><span class="n">k</span><span class="p">]</span>
            <span class="n">utilities</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">utilityValues</span><span class="p">[</span><span class="n">k</span>