Can not connect to the Service /usr/local/bin/geckodriver in python3

My code:

#!/usr/bin/python3

from selenium import webdriver

driver=webdriver.Firefox(executable_path=r'/usr/local/bin/geckodriver')
driver.get('http://www.python.org')

produces the following error:

ERROR : Message: Can not connect to the Service /usr/local/bin/geckodriver

My settings:

• Mozilla Firefox 81.0
• OS => Parrot sec(linux)
• Python 3.8.6
• geckodriver 0.27.0

How can I fix this?

from selenium import webdriver
from selenium.webdriver.firefox.options import Options

options = Options()
options.headless = True
driver = webdriver.Firefox(options=options)