Find element by ID in Selenium Python - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to find an element by its ID using Selenium in Python.

Selenium Python

element = driver.find_element_by_[1]("username")

Drag options to blanks, or click blank then click option'

Aname

Bid

Cclass_name

Dtag_name

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'name' or 'class_name' instead of 'id' when looking for an element by ID.

The correct method to find an element by its ID is find_element_by_id.

2fill in blank

medium

Complete the code to click on an element found by its ID.

Selenium Python

driver.find_element_by_[1]("submit-btn").click()

Drag options to blanks, or click blank then click option'

Aid

Bclass_name

Cname

Dtag_name

Attempts:

3 left

💡 Hint

Common Mistakes

Using the wrong attribute in the find_element method.

To click an element by ID, use find_element_by_id and then call click().

3fill in blank

hard

Fix the error in the code to correctly find an element by ID.

Selenium Python

element = driver.find_element_by_[1]("password")

Drag options to blanks, or click blank then click option'

Aclass_name

Bname

Cid

Dtag_name

Attempts:

3 left

💡 Hint

Common Mistakes

Using find_element instead of find_element_by_id.

The correct method to find an element by its ID is find_element_by_id. The original code used the wrong method name and syntax.

4fill in blank

hard

Fill both blanks to create a dictionary comprehension that finds elements by ID and stores their text.

Selenium Python

texts = {id: driver.find_element_by_[1](id).text for id in ids if id [2] ""}

Drag options to blanks, or click blank then click option'

Aid

B!=

C==

Dname

Attempts:

3 left

💡 Hint

Common Mistakes

Using '==' instead of '!=' in the condition.

Using 'name' instead of 'id' in the method.

The method to find elements by ID is find_element_by_id. The condition should check that the ID is not empty, so != is correct.

5fill in blank

hard

Fill all three blanks to create a test that asserts an element with a specific ID is displayed.

Selenium Python

element = driver.find_element_by_[1]("login-button")
assert element.is_[2](), "Element not visible"
print("Element with ID [3] is visible")

Drag options to blanks, or click blank then click option'

Aid

Bdisplayed

Clogin-button

Denabled

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'enabled' instead of 'displayed' for visibility check.

Mismatching the printed ID string.

The method to find by ID is find_element_by_id. To check visibility, use is_displayed(). The printed ID should match the searched ID string.

Practice

1. What is the correct way to find an element by its ID using Selenium in Python?

easy

A. driver.find_element(By.CLASS_NAME, "element_id")

B. driver.find_element(By.ID, "element_id")

C. driver.find_element_by_id("element_id")

D. driver.find_element(By.NAME, "element_id")

Solution

1. Step 1: Understand Selenium's recommended syntax

   In Selenium Python, the preferred way to find elements by ID is using find_element(By.ID, "id") with the By class.

2. Step 2: Compare options

   driver.find_element(By.ID, "element_id") uses the correct syntax. driver.find_element_by_id("element_id") is deprecated in newer Selenium versions. Options A and D use wrong locator strategies.

3. Final Answer:

   driver.find_element(By.ID, "element_id") -> Option B

4. Quick Check:

   Use By.ID for ID locator [OK]

Hint: Always use By.ID with find_element for IDs [OK]

Common Mistakes:

• Using deprecated find_element_by_id method
• Confusing ID with class or name locators
• Missing import of By class

2. Which of the following is the correct import statement to use By.ID in Selenium Python?

easy

A. from selenium.webdriver.common.by import By

B. import selenium.webdriver.By as By

C. from selenium.webdriver.common.by import ID

D. from selenium.webdriver import By

Solution

1. Step 1: Identify the correct import path

   The By class is located in selenium.webdriver.common.by module.

2. Step 2: Validate options

   from selenium.webdriver.common.by import By correctly imports By. import selenium.webdriver.By as By uses invalid syntax. from selenium.webdriver.common.by import ID tries to import ID which doesn't exist. from selenium.webdriver import By imports By from wrong module.

3. Final Answer:

   from selenium.webdriver.common.by import By -> Option A

4. Quick Check:

   Import By from common.by [OK]

Hint: Import By from selenium.webdriver.common.by [OK]

Common Mistakes:

• Trying to import ID instead of By
• Incorrect module path for By
• Using alias import incorrectly

3. What will be the output of the following code snippet if the element with ID 'submit-btn' exists on the page?

from selenium import webdriver
from selenium.webdriver.common.by import By

driver = webdriver.Chrome()
element = driver.find_element(By.ID, "submit-btn")
print(element.tag_name)

medium

A. Prints the tag name of the element with ID 'submit-btn'

B. Throws NoSuchElementException

C. Prints 'submit-btn'

D. SyntaxError due to wrong method

Solution

1. Step 1: Understand find_element behavior

   If the element with ID 'submit-btn' exists, find_element returns the WebElement object.

2. Step 2: Check what element.tag_name returns

   The tag_name attribute returns the HTML tag name of the found element, e.g., 'button' or 'input'.

3. Final Answer:

   Prints the tag name of the element with ID 'submit-btn' -> Option A

4. Quick Check:

   find_element returns element; tag_name prints tag [OK]

Hint: tag_name shows element's HTML tag [OK]

Common Mistakes:

• Assuming print shows the ID instead of tag
• Expecting exception when element exists
• Confusing method names

4. Identify the error in the following code snippet:

from selenium import webdriver
from selenium.webdriver.common.by import By

driver = webdriver.Chrome()
element = driver.find_element(By.id, "username")

medium

A. Missing parentheses after webdriver.Chrome

B. No error, code is correct

C. Wrong method name, should be find_element_by_id

D. Incorrect attribute 'By.id' should be 'By.ID'

Solution

1. Step 1: Check attribute case sensitivity

   The By class attributes are uppercase, so it should be By.ID not By.id.

2. Step 2: Verify other parts

   Parentheses after webdriver.Chrome() are present. The method find_element with By.ID is correct syntax.

3. Final Answer:

   Incorrect attribute 'By.id' should be 'By.ID' -> Option D

4. Quick Check:

   By.ID is uppercase [OK]

Hint: By.ID is uppercase, not lowercase [OK]

Common Mistakes:

• Using lowercase 'id' instead of 'ID'
• Confusing method names with deprecated ones
• Forgetting parentheses on webdriver.Chrome

5. You want to find an element by ID but handle the case where the element might not exist without stopping the test. Which code snippet correctly does this?

hard

A. element = driver.find_element(By.ID, "login")
if element is None:
print("Not found")

B. element = driver.find_element(By.ID, "login") if driver else None

C. try:
element = driver.find_element(By.ID, "login")
except NoSuchElementException:
element = None

D. element = driver.find_element(By.ID, "login") or None

Solution

1. Step 1: Understand exception handling in Selenium

   If an element is not found, Selenium raises NoSuchElementException. To avoid test failure, catch this exception.

2. Step 2: Review options for handling missing element

   try: element = driver.find_element(By.ID, "login") except NoSuchElementException: element = None uses try-except to catch the exception and assign None if not found. Other options do not handle exceptions properly.

3. Final Answer:

   try: element = driver.find_element(By.ID, "login") except NoSuchElementException: element = None -> Option C

4. Quick Check:

   Use try-except for missing elements [OK]

Hint: Use try-except to catch NoSuchElementException [OK]

Common Mistakes:

• Not catching exceptions causing test to fail
• Using incorrect conditional expressions
• Assuming find_element returns None if not found