unable to lunch firefox using python

[sanjay]

Traceback (most recent call last):
File "C:\OracleExtraMonitor\testff2.py", line 33, in <module>
driver = webdriver.Firefox(executable_path='C:\\Kesko\\Python27\\Lib\\geckodriver.exe')
File "C:\Kesko\Python27\lib\site-packages\selenium\webdriver\firefox\webdriver.py", line 152, in __init__
keep_alive=True)
File "C:\Kesko\Python27\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 98, in __init__
self.start_session(desired_capabilities, browser_profile)
File "C:\Kesko\Python27\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 188, in start_session
response = self.execute(Command.NEW_SESSION, parameters)
File "C:\Kesko\Python27\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 256, in execute
self.error_handler.check_response(response)
File "C:\Kesko\Python27\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 194, in check_response
raise exception_class(message, screen, stacktrace)
WebDriverException: Message: connection refused