how do you make a function in pyhton code example

Example 1: python functions

def myFunction(say): #you can add variables to the function
  print(say)

myFunction("Hello")

age = input("How old are you?")

myFunction("You are {} years old!".format(age))

#this is what you get:

Hello
How old are you?
>>11 #lol my real age actually
You are 11 years old!

Example 2: python functions

def chess_piece(piece_name, piece_value, piece_rank):
    """Info about a chess piece."""
    print(f"\nThis chess piece is called the {piece_name}.")
    print(f"It has an approximate value of {piece_value} points.")
    print(f"In other words, this piece is the {piece_rank} valuable piece.")
    
    
chess_piece('pawn', '1', 'least')
chess_piece('knight', '3', 'second to last most')
chess_piece('bishop', '3', 'third to last most')
chess_piece('rook', '5', 'third most')
chess_piece('queen', '9', 'second most')
chess_piece('king', 'infinite', 'most')