title: Drive Opera with selenium python
body: <p>I added to my environment variable </p>
  
  <pre><code>SELENIUM_SERVER_JAR = C:\selenium_drivers\selenium-server-standalone.jar
  </code></pre>
  
  <p>Which I downloaded here <a href="http://selenium-release.storage.googleapis.com/index.html?path=2.46/" rel="nofollow">http://selenium-release.storage.googleapis.com/index.html?path=2.46/</a></p>
  
  <p>Python script:</p>
  
  <pre><code>from selenium import webdriver
  
  webdriver.Opera()
  </code></pre>
  
  <p>Output:</p>
  
  <pre><code>13:37:37.906 INFO - Launching a standalone Selenium Server
  13:37:38.104 INFO - Java: Oracle Corporation 25.45-b02
  13:37:38.104 INFO - OS: Windows 8 6.2 x86
  13:37:38.132 INFO - v2.46.0, with Core v2.46.0. Built from revision 87c69e2
  13:37:38.269 INFO - Driver class not found: com.opera.core.systems.OperaDriver
  13:37:38.275 INFO - Driver provider com.opera.core.systems.OperaDriver is not registered
  13:37:38.630 INFO - RemoteWebDriver instances should connect to: http://127.0.0.1:53024/wd/hub
  13:37:38.631 INFO - Selenium Server is up and running
  13:37:47.892 INFO - Executing: [new session: Capabilities [{browserName=opera, javascriptEnabled=true, version=, platform=ANY}]])
  13:37:47.907 INFO - Creating a new session for Capabilities [{browserName=opera, javascriptEnabled=true, version=, platform=ANY}]
  Started InternetExplorerDriver server (32-bit) 2.43.0.0
  Listening on port 43192
  13:37:51.090 INFO - Done: [new session: Capabilities [{browserName=opera, javascriptEnabled=true, version=, platform=ANY}]]
  </code></pre>
  
  <p>I was expecting jar to have everything defined, why do I get Driver class not found?</p>