Selenium Webdriver python: Element is not currently visible & same class name

Question

I am using Selenium in python to click a button in a dialog. I try to click"OK", but it keeps getting errors

the buttons show "display:block" in CSS, cause "element is not visible" error
find_element_by_xpath, but the xpath of the element keeps changing
the class names are the same, how to choose the "OK" button?

Here are the code

<div<class="ui-dialog-buttonpane ui-widget-content ui-helper-clearfix">
 <div<class="ui-dialog-buttonset">
  <button type="button" class="large ui-button ui-widget ui-state-default ui-corner-all ui-button-text-only" role="button" aria-disabled="false">
   <span class="ui-button-text">Cancel</span>
  </button>
  <button type="button" class="orange large ui-button ui-widget ui-state-default ui-corner-all ui-button-text-only" role="button" aria-disabled="false">
   <span class="ui-button-text">OK</span>
  </button>
 </div>
</div>

Thank you:)

Anzel · Accepted Answer · 2015-04-29 03:22:55Z

1

If the element is invisible in the DOM like css { display: None}, {opacity: 0}... etc, , selenium will not be able to SEE it even given that you try to wait or time.sleep, instead you should use execute_script to run a JavaScript to trigger the desired event, something like this:

driver.execute_script('document.querySelector("span.ui-button-text").click();')

answered Apr 29, 2015 at 3:22

Anzel

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bosnjak · Accepted Answer · 2015-04-29 00:16:55Z

0

You should wait for the element to be ready before trying to click on it. Use waitForVisible or similar to achieve that.
For example, something like this:

element = WebDriverWait(driver, 10).until(
               lambda driver : driver.find_element_by_xpath(element_xpath)
            )

If the class remains the same, then you should select that class with element_xpath. The last thing you need to determine is what other attribute designates the button as ready. Then you can wait for the specific argument like:

def find(driver):
    e = driver.find_element_by_xpath(element_xpath)
        if (e.get_attribute(some_attribute)==some_value):
            return False
        return e

element = WebDriverWait(driver, 10).until(find)

edited Apr 29, 2015 at 0:16

answered Apr 29, 2015 at 0:10

bosnjak

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2 Comments

Harold Wren Over a year ago

I try to use 'time.sleep(5)', but the element is still invisible and the xpath keeps changing every time I open the dialog. :(

bosnjak Over a year ago

Can you share the URL in question?

Saifur · Accepted Answer · 2015-04-29 00:22:12Z

0

Two different things can happen here.

• The selector is not explicitly returning the intended element

• Element load issue.

If both cases are true use explicit wait with a correct selector. In terms of selector I like using text bases search in such scenario. Notice I am using xpatth contains to make sure it eliminates any leading or tailing white spaces.

element = WebDriverWait(driver, 10).until(EC.presence_of_element_located((By.XPATH , "//span[contains(text(),'OK')]")))

API doc here

answered Apr 29, 2015 at 0:22

Saifur

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