如何在不知道锚标记内的文本的情况下在 python 中使用 selenium 驱动程序单击链接

Question

I use selenium+phantomJS+scrapy to scrapy javascript content. And i want to click a link in the table after loading the javascript content. But the most important thing is that with different input content, the link i want to click changed.

then i want to use xpath to locate the link but i failed. Here's the html element and the xpath i wrote.

<div class="results searchResults" style="display: block;”>
    <table cellspacing="0" id="resultGroup">
        <colgroup>
            <col width="4.216%">
            <col width="43.13%">
            <col width="52.65%">
        </colgroup>
        <tbody>
            <tr class="">
                <td class="selector">
                    <a href="#" id="c_2441797" title="Apple Inc." class="checkbox unchecked">&nbsp;</a>
                </td>
                <td class="name">
                    <div>
                        <a href="#!search/profile/company?companyId=2441797&amp;targetid=profile" class="companyResultsName">Apple Inc.</a>
                        <a href="http://www.google.com/finance?client=ob&amp;q=NASDAQ: AAPL" rel="external" target="_blank">(NASDAQ: AAPL)</a>
                    </div>

the xpath is self.driver.find_element_by_xpath(".//*[@id='resultGroup']/tbody/tr[@class='name']/div[1]/a[@class='companyResultsName']").click()

hope someone could give me a hint. Thanks.

Answer 1

If your element is dynamically generated by JavaScript , you should wait until it present in DOM :

 from selenium.webdriver.common.by import By
 from selenium.webdriver.support.ui import WebDriverWait
 from selenium.webdriver.support import expected_conditions as EC

 link = WebDriverWait(driver, 20).until(EC.presence_of_element_located((By.CLASS_NAME, "companyResultsName")))
 link.click()