Functions.py

def myPrint(name) :
    print(name)
    #return None

myPrint("hello")


def myPrint(name, prefix="I am") :
    #print separate automatically the strings with a space
    print(prefix, name)
    return None

myPrint("Fabio")
myPrint("Fabio", prefix="I am not")


def spam() :
    global eggs
    eggs = 'Hello'
    print(eggs)

eggs = 42
spam()
print(eggs)