我正在尝试单击一个编辑选项卡链接,它的形式是无序列表中的超链接.
I am trying to click on an edit tab link, and its in the form of a hyperlink in an unordered list.
这是 HTML:
<li><a href="/node/2658/edit" data-drupal-link-system-path="node/2658/edit">Edit</a></li>
我一直在尝试使用 driver.find_element_by_link_text('Edit')
来查找元素,但总是得到 NoSuchElementException
.
I have been trying to use driver.find_element_by_link_text('Edit')
to find the element, however always get a NoSuchElementException
.
我还使用了带有所有 html 变体的 by partial text fxn,并收到相同的错误.
I have also used the by partial text fxn, with all variations of the html, and receive the same error.
我还发现了以下包含正确链接的 html:
There is also the following html I found that includes the proper link:
<link rel="edit-form" href="/node/2658/edit" />
我可以使用 selenium 函数转到此编辑页面吗?
Is there a selenium function I can use to go to this edit page?
根据您共享的 HTML,href
和 data-drupal-link 的 value由于值
属性显然似乎是动态的.所以需要构造一个动态定位器来定位元素.2658
的存在,-system-path
As per the HTML you shared the value of href
and data-drupal-link-system-path
attributes clearly seems to be dynamic due to the presence of the value 2658
. So you need to construct a dynamic locator to locate the element.
由于所需元素是动态元素,因此要在元素上定位和 click()
您必须为 element_to_be_clickable() 诱导 WebDriverWait代码>,您可以使用以下任一 定位器策略:
As the desired element is a dynamic element so to locate and click()
on the element you have to induce WebDriverWait for the element_to_be_clickable()
and you can use either of the following Locator Strategies:
使用 CSS_SELECTOR
:
WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.CSS_SELECTOR, "li>a[href$='edit'][data-drupal-link-system-path^='node']"))).click()
使用 XPATH
:
WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.XPATH, "//li/a[contains(@href, 'edit') and starts-with(@data-drupal-link-system-path, 'node')][text()='Edit']"))).click()
注意:您必须添加以下导入:
Note : You have to add the following imports :
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.common.by import By
from selenium.webdriver.support import expected_conditions as EC
要仅考虑 href
和 data-drupal-link-system-path
属性的静态部分,您可以在 css-selectors:
To consider only the static part of href
and data-drupal-link-system-path
attributes you can use the following wildcards in css-selectors:
$ :表示一个属性值以
^ : 表示一个属性值以
所以最细粒度的 css_selector 应该是:
So the most granular css_selector would be :
li>a[href$='edit'][data-drupal-link-system-path^='node']
要仅考虑 href
和 data-drupal-link-system-path
属性的静态部分,您可以使用 xpath:
To consider only the static part of href
and data-drupal-link-system-path
attributes you can use the following functions of xpath:
contains()
: 表示一个属性值contains
starts-with()
: 表示一个属性值starts with
所以最细粒度的 xpath 应该是:
So the most granular xpath would be :
//li/a[contains(@href, 'edit') and starts-with(@data-drupal-link-system-path, 'node')][text()='Edit']
您可以在以下位置找到一些相关讨论:
You can find a couple of relevant discussions in:
您可以在以下位置找到关于 NoSuchElementException 的详细讨论:
You can find a detailed discussion on NoSuchElementException in:
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