title: How can I wait until a specific text is loaded?
body: <p>This is the page I try to collect data (<a href="http://www.bobaedream.co.kr/cyber/CyberCar.php?gubun=I" rel="nofollow noreferrer">http://www.bobaedream.co.kr/cyber/CyberCar.php?gubun=I</a>) using Selenium and Python 3.6. What I would like to do is to select each drop down menu of the first row and click 'search button', and then start to collect data when the page is loaded. </p>
  
  <p><a href="https://i.stack.imgur.com/HWDma.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/HWDma.png" alt="enter image description here"></a></p>
  
  <p>The part I got stuck is that the crawler "waits" until the stock list is refreshed. I can't find how to figure out the page is completed to be refreshed. </p>
  
  <p>I know I could use "waits.until(EC....)" function in Selenium. The thing I can't figure out is "the clue" the page is refreshed. I tried with the text of the item in the last drop-down menu. But sometimes the list title doesn't have that text in it. </p>
  
  <p>Please help.   </p>