当文本没有整齐地封装在标记中时,如何在Selenium中获取文本?

<td data-title="Docket No.">"3228"
    <div class="cursor-pointer expand-collapse-container expand-document-name">
        <div class="expand-arrow" aria-hidden="true"></div>
        <div class="collapse-arrow" aria-hidden="true"></div>
    </div>
</td>

我正在使用Selenium,并希望获得以下文本

<td data-title="Docket No.">

在本例中为“3228”

我试过:

lastdocket=element.find_element(By.XPATH,'//*[@data-title="Docket No."]/text()').get_attribute('innerHTML')

程序崩溃,我得到:

 Message: invalid selector
from javascript error: {"status":32,"value":"The result of the xpath expression \"//*[@data-title=\"Docket No.\"]/text()\" is: [object Text]. It should be an element."}

然后,我尝试从xpath表达式中去掉“text()”:

lastdocket=element.find_element(By.XPATH,'//*[@data-title="Docket No."]/').get_attribute('innerHTML')

当我打印“lastdocket”时得到这个:

'3228<div class="cursor-pointer expand-collapse-container expand-document-name"><div class="expand-arrow" aria-hidden="true"></div><div class="collapse-arrow" aria-hidden="true"></div></div>'

我意识到我可以删除后面的“3228”标签,但有办法只返回数字吗???