Pass String from JS to Python Selenium

Question

I'm using Python/Selenium with the Chrome webdriver, and I'm trying to retrieve a url from one <td> based on the content of another <td>. My markup looks like:

<div class="targetclass">
    <tr>
       <td><a href="[email protected]">emailval2</a></td>
       <td><a href="[email protected]">emailval</a></td>
    </tr>
</div>

That's easy enough with jQuery and script executor:

with open('jquery-3.2.1.min.js', 'r') as jquery_js: 
    jquery = jquery_js.read() #read the jquery from a file
    driver.execute_script(jquery) # activate the jquery lib
    driver.execute_script("$('div.targetclass a[href$=\"[email protected]\"]').parents(\"tr\").find(\"a:first\").attr('href')")

However, when I try to store the returned href to use with webdriver, I have the following result:

aurlval = driver.execute_script("$('div.targetclass a[href$=\"[email protected]\"]').parents(\"tr\").find(\"a:first\").attr('href')")
print (aurlval)

The returned value is

None

How can I store the target url ([email protected]) so that I can manipulate it with the webdriver?

Reid Ballard · Accepted Answer · 2017-05-07 23:36:41Z

1

My experience with Selenium is limited to some niche cases where I wanted some automation (for scraping I can normally get by with requests and BeautifulSoup) but I believe the reason you are getting None is because execute_script doesn't return a value to begin with (your script is basically just being injected into the webpage and executed within the browser). Iirc, you should be able to parse your jquery out to (verbosely):

div = driver.find_element_by_class_name("targetclass")
targeta = div.find_element_by_link_text("[email protected]")
tr = targeta.parent.parent
retrieve = tr.find_element_by_tag_name("a")
aurlval = retrieve.getattribute("href")

I can't recall of the top of my head if Selenium has separate methods for list vs first-element, so you may have to take the zero index on those lines.

answered May 7, 2017 at 23:36

Reid Ballard

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2 Comments

Marcatectura Over a year ago

I'm hitting a roadblock at the .parent line, and I think it's because .parent is used differently in Selenium. It looks like I may need xpath to achieve this.

Ywapom Over a year ago

Selenium does have separate methods for list vs first elements. You just make it plural, e.g., find_elements_by_...

Ywapom · Accepted Answer · 2018-06-25 20:36:15Z

0

One way is to use javascript as below to get the table row along with the previous answers steps. WebDriver doesn't have a 'parent' method of its own.

div = driver.find_element_by_class_name("targetclass")
targeta = div.find_element_by_link_text("[email protected]")
tr = self.driver.execute_script("return arguments[0].parentNode.parentNode;", targeta)

Then you can find elements in the row.

Or you can try "return arguments[0].parentNode;" which should get the td and then try to get previous-sibling, but I haven't tried that.

answered Jun 25, 2018 at 20:36

Ywapom

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