WebDriverException: Message: 'chromedriver_mac64.zip' executable may have wrong permissions. Please see https://sites.google.com/a/chromium.org/chromedriver/home code example

Example: 'chromedriver_win32' executable may have wrong permissions.

driver = webdriver.Chrome(executable_path=r'C:/path/to/chromedriver.exe')
use r with single /
or use \\
also .exe in path