How to address “WebDriverException: Message: TypeError: can't access dead object” and wait for a frame to be available using Selenium and Python

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无人共我 2020-12-01 23:01

I have a rather complex webpage setup I need to test, containing nested frames.

In the actual problem the selenium code is loading new webpage contents containing a

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抹茶落季 (楼主)

2020-12-01 23:27
This error message...
```
WebDriverException: Message: TypeError: can't access dead object
```
...implies that there was an error while switching between .

Some more information in terms of:
- The relevant HTML
- Presence of Frameset
- Presence of Frames
- Hierarchy of Nested Frames
- Sequence of Frame Loading
- Presence of JavaScript and AJAX Calls within the respective </code> tags</li> </ul> <p>would have helped us to analyze the issue in a better way. However, at this point it is worth to mention that initially Selenium always gets the focus on the <strong>default_content</strong>. Here are a few approaches to work with nested <code><frames></code> and <code><framesets></code>:</p> <ul> <li><p>If both <em>frame1</em> and <em>frame2</em> are at same level i.e. under the <strong>Top Level Browsing Context</strong> you need to:</p> <pre><code>self.driver.switch_to.frame(self.driver.find_element_by_id("frame1")) self.driver.switch_to_default_content() self.driver.switch_to.frame(self.driver.find_element_by_id("frame2")) </code></pre></li> <li><p>If <em>frame2</em> is nested within <em>frame1</em>, to switch from <em>frame1</em> to <em>frame2</em> you need to:</p> <pre><code>self.driver.switch_to_default_content() self.driver.switch_to.frame(self.driver.find_element_by_id("frame1")) //code self.driver.switch_to.frame(self.driver.find_element_by_id("frame2")) </code></pre></li> <li><p>If <em>frame2</em> and <em>frame3</em> is within <em>frame1</em> then, to switch from <em>frame2</em> to <em>frame3</em> you need to:</p> <pre><code>self.driver.switch_to.frame(self.driver.find_element_by_id("frame2")) self.driver.switch_to.frame(self.driver.find_element_by_id("frame1")) self.driver.switch_to.frame(self.driver.find_element_by_id("frame3")) </code></pre></li> <li><p>If <em>frame2</em> and <em>frame3</em> is within a <em>frameset23</em> which is within <em>frame1</em> then, to switch from <em>frame2</em> to <em>frame3</em> you need to:</p> <pre><code>self.driver.switch_to.frame(self.driver.find_element_by_id("frame2")) #ignore presence of frameset23 self.driver.switch_to.frame(self.driver.find_element_by_id("frame1")) #ignore presence of frameset23 self.driver.switch_to.frame(self.driver.find_element_by_id("frame3")) </code></pre></li> </ul> <hr> <h2>Better approach with proper WebDriverWait</h2> <p>While dealing with iframe and frameset you need to induce WebDriverWait inconjunction with expected_conditions:</p> <pre><code>frame_to_be_available_and_switch_to_it() </code></pre> <p>As an example to switch from <em>Top Level Browsing Context</em> to an <code><iframe></code> an effective line of code will be:</p> <ul> <li><p>Using <em>frame</em> ID:</p> <pre><code>WebDriverWait(driver, 10).until(EC.frame_to_be_available_and_switch_to_it((By.ID,"frameID"))) </code></pre></li> <li><p>Using <em>frame</em> NAME:</p> <pre><code>WebDriverWait(driver, 10).until(EC.frame_to_be_available_and_switch_to_it((By.NAME,"frameNAME"))) </code></pre></li> <li><p>Using <em>frame</em> CLASS_NAME:</p> <pre><code>WebDriverWait(driver, 10).until(EC.frame_to_be_available_and_switch_to_it((By.frame_CLASS_NAME,"u_0_f"))) </code></pre></li> <li><p>Using <em>frame</em> CSS_SELECTOR:</p> <pre><code>WebDriverWait(driver, 10).until(EC.frame_to_be_available_and_switch_to_it((By.CSS_SELECTOR,"frame_CSS_SELECTOR"))) </code></pre></li> <li><p>Using <em>frame</em> XPATH:</p> <pre><code>WebDriverWait(driver, 10).until(EC.frame_to_be_available_and_switch_to_it((By.XPATH,"frame_XPATH"))) </code></pre></li> </ul> <hr> <h2>tl; 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