urllib.parse.quote_plus(string, safe='', encoding=None, errors=None)
Like quote(), but also replace spaces by plus signs, as required for quoting HTML form values when building up a query string to go into a URL. Plus signs in the original string are escaped unless they are included in safe. It also does not have safe default to '/'.
Example: quote_plus('/El Niño/') yields '%2FEl+Ni%C3%B1o%2F'.