manuelinfosec

def my_shiny_new_decorator(a_function_to_decorate):
    # Inside, the decorator defines a function on the fly: the wrapper.
    # This function is going to be wrapped around the original function
    # so it can execute code before and after it.
    def the_wrapper_around_the_original_function():
    
        # Put here the code you want to be executed BEFORE the original 
        # function is called
        print("Before the function runs")

manuelinfosec

def doSomethingBefore(func): 
    print("I do something before then I call the function you gave me")
    print(func())

doSomethingBefore(scream)
# Outputs: 
	# I do something before then I call the function you gave me
	# Yes!

manuelinfosec

# Get the function and assign it to a variable
talk = getTalk()     

# You can see that `talk` is here a function object:
print(talk)
# Outputs : <function shout at 0xc1d2859b>

# The object is the one returned by the function:
print(talk())
# Outputs: Yes!

manuelinfosec

def getTalk(kind='shout'):
    # We define functions on the fly
    def shout(word='yes'):
        return word.capitalize() + '!'

    def whisper(word='yes'):
        return word.lower() + '...'

    # Then we return one of them
    if kind == 'shout':

manuelinfosec

try:
    print(whisper())
except NameError as e:
    print(e)
    # Outputs: "name 'whisper' is not defined"

manuelinfosec

def talk():
    # Defining a function on the fly in `talk` ...
    def whisper(word='yes'):
        return word.lower() + '...'
    # ... and using it right away!
    print(whisper())

talk()
# Outputs: "yes..."

manuelinfosec

# deleting the shout() object
del shout

try:
	# trying to access the deleted shout() object
    print(shout())
except NameError as e:
    print(e)
    # Outputs: "name 'shout' is not defined"

manuelinfosec

print(scream())
# Outputs: 'Yes!'

manuelinfosec

scream = shout

manuelinfosec

def shout(word='yes'):
    return word.capitalize() + '!'

print(shout())

# Outputs : 'Yes!'