BeautifulSoup4 - Requests -如何查找TBODY类？

Question

我正在尝试从以下网站检索数据：http://www.b3.com.br/pt_br/market-data-e-indices/indices/indices-amplos/indice-ibovespa-ibovespa-composicao-da-carteira.htm

为什么下面的代码不返回任何内容？

from bs4 import BeautifulSoup
import requests

source = requests.get('http://www.b3.com.br/pt_br/market-data-e-indices/indices/indices-amplos/indice-ibovespa-ibovespa-composicao-da-carteira.htm').text
soup = BeautifulSoup(source, 'lxml')

soup.find('tbody')

网站元素示例：

<tbody>
    <tr class="rgRow GridBovespaItemStyle" id="ctl00_contentPlaceHolderConteudo_grdResumoCarteiraTeorica_ctl00__0" style="font-weight:normal;font-style:normal;text-decoration:none;">
        <td class="rgSorted" align="left">
                                <span id="ctl00_contentPlaceHolderConteudo_grdResumoCarteiraTeorica_ctl00_ctl04_lblCodigo">ABEV3</span>
                            </td><td align="left">
                                <span id="ctl00_contentPlaceHolderConteudo_grdResumoCarteiraTeorica_ctl00_ctl04_lblAcao">AMBEV S/A</span>
                            </td><td align="left">
                                <span id="ctl00_contentPlaceHolderConteudo_grdResumoCarteiraTeorica_ctl00_ctl04_lblTipo">ON</span>
                            </td><td class="text-right">
                                <span id="ctl00_contentPlaceHolderConteudo_grdResumoCarteiraTeorica_ctl00_ctl04_lblQtdeTeorica_Formatada">4.354.228.928</span>
                            </td><td class="text-right">
                                <span id="ctl00_contentPlaceHolderConteudo_grdResumoCarteiraTeorica_ctl00_ctl04_lblPart_Formatada">3,003</span>
                            </td>
    </tr>
</tbody>

预期输出-所有表格列和行的内容：

​

​

Answer 1

您所链接的页面实际上加载了一个包含表的iframe。框架中文档的URL是http://bvmf.bmfbovespa.com.br/indices/ResumoCarteiraTeorica.aspx?Indice=IBOV&idioma=pt-br，如果您使用该URL，您将看到<tbody>