Python Selenium XPath追溯错误

Question

我遇到硒的find_element_by_xpath错误。 这是我得到的错误：

Traceback (most recent call last):
  File "/Users/iyadschool/Desktop/q_hack.py", line 15, in <module>
    text = driver.find_element_by_xpath("//*[contains(text(), ' " + term[1] + "')]")
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/selenium/webdriver/remote/webdriver.py", line 354, in find_element_by_xpath
    return self.find_element(by=By.XPATH, value=xpath)
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/selenium/webdriver/remote/webdriver.py", line 832, in find_element
    'value': value})['value']
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/selenium/webdriver/remote/webdriver.py", line 297, in execute
    self.error_handler.check_response(response)
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/selenium/webdriver/remote/errorhandler.py", line 194, in check_response
    raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.NoSuchElementException: Message: no such element: Unable to locate element: {"method":"xpath","selector":"//*[contains(text(), ' indifference')]"}
  (Session info: chrome=64.0.3282.186)
  (Driver info: chromedriver=2.35.528157 (4429ca2590d6988c0745c24c8858745aaaec01ef),platform=Mac OS X 10.12.6 x86_64)

这是错误所指向的代码：

term = ["impalpable", "indifference", "complacent", "transpire", "abject", "derivative", "derive", "dispel", "authentic", "deprived", "aesthetic", "affinity", "depict", "impertinent", "inevitable", "deviate", "aggrandize", "aggregate"]
definition = ["unable to be felt", "lack of concern", "self-satisfied", "to happen", "miserable", "unoriginal", "to get\
come from", "to drive away", "real", "take away something", "pertaining to beauty", "a natural attraction or feeling of kinship", "To give a picture of; to describe", "rude and disrespectful", "unavoidable", "depart, from a path or plan", "to increase in power, influence, and reputation", "(v.) - to gather, amass"]

termnumb = len(term)
defnumb = len(definition)

text = driver.find_element_by_xpath("//*[contains(text(), ' " + term[1] + "')]")
text.click()

我不知道怎么回事？ 我正在尝试编写一个从列表中获取第一个术语和定义的代码。 然后，它在页面上都单击它们，然后转到下一个学期。 我想通过标签（术语名称）之间的文本查找元素

提前致谢。

Answer 1

如果您使用contains（），请提供最低限度的内容以确保唯一的文本匹配。 提示：任何无关紧要的字符都会咬你。

使用开发工具中的控制台在浏览器中尝试定位器。 $$（“ css选择器在这里”）或$ x（“ xpath在这里”）。 如果返回您的元素，则您将被锁定并加载。 如果没有，请适应并克服。

这是另一种有用的故障排除方法：

elem = driver.find_element_by_xpath("//div[contains(text(), 'derive')]")
import pdb; pdb.set_trace()
text.click()

单击之前，它将带您进入脚本，所有变量均保持不变。 尝试手动运行element.click() ，然后观察页面上发生的情况。 点击可能是挑剔的，您可能必须尝试使用​​偏移量进行点击，或者在极端情况下执行被截断的javascript来点击（我发现这种情况很少见，并且是不得已的做法）。