title: Python, error with web driver (Selenium)
body: <pre><code>    import time
  from selenium import webdriver
  from selenium.webdriver.common.action_chains import ActionChains
  from selenium.webdriver.common.keys import Keys
  
  driver = webdriver.Chrome()
  driver.get('http://arithmetic.zetamac.com/game?key=a7220a92')
  element = driver.find_element_by_link_text('problem')
  print(element)
  </code></pre>
  
  <p>I am getting the error:</p>
  
  <pre><code>FileNotFoundError: [Errno 2] No such file or directory: 'chromedriver'
  </code></pre>
  
  <p>I am not sure whythis is happening, because I imported selenium already. </p>