带有lxml的xpath用于Python获取数据

Question

<th><span class="sic_edu_series_popup {keyword : 'EPS_STOCK'}">EPS</span>
          (SGD) <sup class="sic_legend">a
          , j

    </sup></th>
    <td><strong>1.89766</strong></td>
    <th><span class="sic_edu_series_popup {keyword : 'TRAILING_EPS_STOCK'}">Trailing EPS</span>
      (SGD) <sup class="sic_legend">e</sup></th>
    <td><strong>1.87198</strong></td>
    <th><span class="sic_edu_series_popup {keyword : 'NAV_STOCK'}">NAV</span>
      (SGD) <sup class="sic_legend">b</sup></th>
    <td><strong>18.5449</strong></td>
  </tr>

I am trying to extract data for 'Trailing EPS' to get data '1.87198'. There are many data with this format with different name, like EPS, ROE and etc

tree.xpath('//th[contains(normalize-space(span), "EPS")]/sup[@class = "sic_legend"]/td/text()')

I get nothing out from it.

Answer 1

The td element is not a child of the sup element. Use the fact that th and td are siblings :

//th[contains(span, "EPS")]/following-sibling::td/strong/text()