How to Locate Elements by Class Attribute Using Selenium's EC.presence_of_element_located?

How to Use EC.presence_of_element_located with Class Attribute

When using selenium's EC.presence_of_element_located method with WebDriverWait, you canspecify an element to find by its class attribute instead of its ID. Here's how to do it:

The original code:

element = WebDriverWait(driver,100).until(EC.presence_of_element_located((By.ID, "tabla_evolucion")))

attempts to find an element by its ID. To find an element by its class instead, change "By.ID" to "By.CLASS" and provide the class name:

element = WebDriverWait(driver,100).until(EC.presence_of_element_located((By.CLASS, "ng-binding ng-scope")))

Note: Avoid using presence_of_element_located for interactive actions. Instead, prefer visibility_of_element_located or element_to_be_clickable.

Additionally:

• Using CSS_SELECTOR or XPATH allows you to combine ID and class attributes for more precise element location:

# CSS_SELECTOR
element = WebDriverWait(driver, 20).until(EC.visibility_of_element_located(
    (By.CSS_SELECTOR, ".ng-binding.ng-scope#tabla_evolucion")))

# XPATH
element = WebDriverWait(driver, 20).until(EC.visibility_of_element_located(
    (By.XPATH, "//*[@class='ng-binding ng-scope' and @id='tabla_evolucion']")))

• Remember, compound class names are not permitted in By.class. The above code attempts to find an element with both "ng-binding" and "ng-scope" classes.

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