How do variables work in a decorator?

Question

Python

I can't figure out why:
- this is how the function sees the variable:

def talk(func):
    def wrap(word):           
        print(word)
    return wrap
    
@talk
def func(word):
    pass

func('yeee')

>>> yeee
- and so no:

def talk(func):            
    print(word)

@talk
def func(word):
    pass

func('yeee')

NameError: name 'word' is not defined
Well, i.e. where does wrap get the word from if it doesn't seem to be in the scope of talk?..

Answer 1

Python expands the construct @talkinto func = talk(func). Since the talk function returns a wrap function, after the "unwrapping" is complete, you get func = wrap, and by calling func(word)you are actually calling wrap(word).