schedude@cs193956:~$ brew install geckodriver
Error: No available formula with the name "homebrew/dupes/unzip" (dependency of geckodriver)
==> Searching for similarly named formulae...
Error: No similarly named formulae found.
==> Searching taps...
Error: No formulae found in taps.

/home/schedude/geckodriver

firefox_path=('/home/schedude/geckodriver')
driver = webdriver.Firefox(firefox_path)

[Errno 20] Not a directory: '/home/schedude/geckodriver'