title: python selenium - is_enabled returns True even when button is disabled
body: <p>I have a button which is disabled until username, password is filled in. I tried simple code snippet as follows:</p>
  <pre><code>    element = browser.find_element_by_xpath(xpathOfSubmitButton)
      print(e.is_enabled())
  </code></pre>
  <p>Output: True</p>
  <p>What I want to achieve is to check if the button is disabled until all values are correctly filled.</p>
  <p>Note: Our website is Angular 9 based, if that could make a difference, please let me know.</p>
  <p>I am fairly new to Selenium hence any help will be appreciated!</p>