Telling The Script To Wait Until Button Is Clickable?

I'm writing a script in Selenium (Python) and I am having an issue with a disabled clicked Button. The button becomes active only when the form is completed.

You need to import followings.

from selenium.webdriver.common.byimportByfrom selenium.webdriver.support.uiimportWebDriverWaitfrom selenium.webdriver.supportimport expected_conditions asEC