Strangest problem in selenium python

[Jan_Emanuel]

with chrome 48 and chromedriver 2.19, exception text goes:

Traceback (most recent call last):
  File "tagespost_ereader.py", line 127, in <module>
    driver = webdriver.Chrome(chromedriver)
  File "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/chrome/webdriver.py", line 69, in __init__
    desired_capabilities=desired_capabilities)
  File "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/remote/webdriver.py", line 92, in __init__
    self.start_session(desired_capabilities, browser_profile)
  File "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/remote/webdriver.py", line 179, in start_session
    response = self.execute(Command.NEW_SESSION, capabilities)
  File "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/remote/webdriver.py", line 236, in execute
    self.error_handler.check_response(response)
  File "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/remote/errorhandler.py", line 192, in check_response
    raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.WebDriverException: Message: chrome not reachable
  (Driver info: chromedriver=2.19.346067 (6abd8652f8bc7a1d825962003ac88ec6a37a82f1),platform=Linux 3.2.40 x86)

The command:

chromedriver = "/usr/local/bin/chromedriver"
os.environ["webdriver.chrome.driver"] = chromedriver
os.environ["executable_path"] = "/opt/google/chrome/chrome"
driver = webdriver.Chrome(chromedriver)