python set expected data type of function arguments code example

Example 1: python function argument type

def pick(l: list, index: int) -> int:
    return l[index]

Example 2: how to set the type of the arguments functions in pytohn

def showPrompt(symbol :str, container :str) -> None:
    while container.lower() != "exit":
        container = str(input(symbol))

Example 3: specify return type python function

def greeting(name: str) -> str:
  return 'Hello, {}'.format(name)