how to define a function in python

1OK, basically def function() is a block where you will have one task that you can repeat all over again in the code to make it look short and clean

1def myFunction(say): #you can add variables to the function
2  print(say)
3
4myFunction("Hello")
5
6age = input("How old are you?")
7
8myFunction("You are {} years old!".format(age))
9
10#this is what you get:
11
12Hello
13How old are you?
14>>11 #lol my real age actually
15You are 11 years old!

1def example():			#This defines it
2  print("Example.")		#This is the defined commands
3
4example()				#And this is the commands being run

1def test_function(argument1,argument2,argument3) :
2  # Do something with the code, and the arguments.
3  print(argument1)
4  print(argument2)
5  print(argument3)
6  
7# Calling the function.
8
9test_function('Hello','World','!')
10
11# Output
12'''
13Hello
14World
15!
16'''

1def function_name():
2  pass

1variable = "Hello, world!" # variable = string("Hello, world!")
2
3#A simply function :
4
5def Functiontest(): #define a function
6  print("Hello, world!")
7  print(variable)
8 
9#Function with components :
10
11def Functiontestwithcomponent(arg1, arg2): # Define a function with two arguments, arg1 and arg2.
12  if arg1 == True: # Arguments can have any name, like variables.
13    print(arg2)
14
15#Call a function :
16Functiontest() #Start Function.
17
18#Call a function with two components :
19
20Functiontestwithcomponent(True, "Hello, function!") #Start Function and precise two arguments :
21