硒(Python)>>selenium.common.exceptions.NoSuchFrameException: [英] Selenium (Python) >> selenium.common.exceptions.NoSuchFrameException:

问题描述

我一直试图进入iframe并在Safari的搜索栏(标记)中写文本:

I've been trying to enter to an iframe and write text in a search bar ( tag) in Safari:

我无法发布html，因为它很大而且不是我的，但这是iframe代码:

I can't post the html because it's huge and it isn't mine but this is the iframe code:

<iframe frameborder="0" id="contentIFrame0" name="contentIFrame0" title="Área de contenido" style="border: 0px none; overflow: hidden; position: absolute; left: 0px; right: 0px; height: 100%; width: 100%; visibility: visible; display: block;"> (...Content of the iframe...) </iframe>

这是python代码:

Here is python code:

wait.until(ec.frame_to_be_available_and_switch_to_it((By.XPATH, '//*[@id="contentIFrame0"]')))
chk_elem = wait.until(ec.visibility_of_element_located((By.XPATH, '//*[@id="2crmGrid_findCriteria"]')))
act = ActionChains(driver)
act.move_to_element(chk_elem)
act.send_keys('Search input', Keys.ENTER).perform()

但是我总是得到这个异常:"selenium.common.exceptions.NoSuchFrameException:消息:".

but I always get this Exception: "selenium.common.exceptions.NoSuchFrameException: Message:".

我一直在看一些教程，甚至在阅读官方文档，我想我的代码还可以.为什么它不起作用?

I've been watching some tutorials and even reading the official documentation and I guess my code is Ok. Why it isn't working?

PD:在我发布的iframe之前，没有其他iframe了，并且XPATHs写得很好.我不知道它是否相关，但为了防止万一，我们正在谈论Microsoft提供的动态服务网站.

PD: There aren't another iframe before the iframe that I posted and XPATHs are well written. I don't know if it is relevant but we are talking about a web site of dynamics services from microsoft, just in case.

推荐答案

此错误消息...

selenium.common.exceptions.NoSuchFrameException

...表示 Selenium 驱动 WebDriver 实例无法执行定位< iframe> 元素.

...implies that Selenium driven WebDriver instance was unable to locate the <iframe> element.

您已采用正确的方法.理想情况下，要找到 iframe 的问题，您必须诱导 WebDriverWait 与

You have adapted the right approach. Ideally, to locate an iframe you have to induce WebDriverWait inconjunction with expected_conditions set as frame_to_be_available_and_switch_to_it().

但是，看到此错误可能有很多原因，其中一些原因和解决方案如下:

However, there can be numerous reasons behind seeing this error and some of the reasons and solutions are as follows:

• 所需的 iframe 可能是其父 iframe 中嵌套的 iframe .在这种情况下，您必须诱使 WebDriverWait 首先切换到父iframe ，然后再切换到子iframe ，如下所示:

• The desired iframe may be a nested iframe within it's parent iframe. In those cases you have to induce WebDriverWait first to switch to the parent iframe and then to the child iframe as follows:

WebDriverWait(driver, 10).until(EC.frame_to_be_available_and_switch_to_it((By.XPATH,"parent_iframe_xpath")))
WebDriverWait(driver, 10).until(EC.frame_to_be_available_and_switch_to_it((By.XPATH,"child_iframe_xpath")))

如果要在两个同级 iframe 之间切换，则首先需要先切换回 default_content ，然后按以下方式切换到同级iframe:

If you are switching between two sibling iframes then you first need to switch back to the default_content first and then switch to the sibling iframe as follows:

WebDriverWait(driver, 10).until(EC.frame_to_be_available_and_switch_to_it((By.XPATH,"sibling_iframe_A")))
driver.switch_to.default_content()
WebDriverWait(driver, 10).until(EC.frame_to_be_available_and_switch_to_it((By.XPATH,"sibling_iframe_B")))

您可以在

• 有时，多个 iframe 对于相同的属性可以具有相似的值.在这种情况下，您可能需要构建定位器策略使用 src 属性唯一地标识< iframe> 元素，如下所示:

  • At times multiple iframes can have similar values for same attributes. In those cases, you may need to construct Locator Strategies which identifies the <iframe> element uniquely using the src attribute as follows:

    WebDriverWait(driver, 10).until(EC.frame_to_be_available_and_switch_to_it((By.XPATH,"//iframe[@id="iframe_id and @src='iframe_src'"]")))
    

  您可以在>在iframe下处理#document的方法中找到详细的讨论

  • 最后，您需要确保二进制版本兼容，并且可以在以下位置找到几个相关的讨论:

    • Finally, you need to ensure that the binary versions are compatible and you can find a couple of relevant discussions in:

      • 为给定支持的Firefox浏览器版本是Geckodriver版本吗?
      • 通过Selenium与IE 11一起使用的正确IEDriverServer版本是什么

      为 WebDriverWait 配置的超时可能太少了，在这种情况下，您需要按以下方式增加超时时间:

      The timeout configured for WebDriverWait may be too less and in that case you need to increase the timeout as follows;:

      WebDriverWait(driver, 30).until(EC.frame_to_be_available_and_switch_to_it((By.XPATH,"parent_iframe_xpath")))
      

    您可以在以下位置找到一些参考讨论:

    You can find a couple of reference discussions in:

    • 通过Selenium和python切换到iframe
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