can somebody explain difference in these two almost similar codes??

Question

Original code:
https://code.sololearn.com/391/#py

1st variation: - why no output.
def decor(func):
def wrap():
print("============")
func()
print("============")
return wrap

def print_text():
print("Hello world!")

decor(print_text)

2nd variation:
def wrap(func):
print("============")
func()
print("============")
return wrap

def print_text():
print("Hello world!")

s=wrap(print_text)
s()

Answer 1

Works fine on app version of sololearn ,web version has problems ,you can mail sololearn for the issue :-)

Answer 2

This is an excellent article on decorators that explains the whole concept starting from the basics.
https://realpython.com/primer-on-JUMP_LINK__&&__python__&&__JUMP_LINK-decorators
Highly recommended. Very long, so take your time with it. But totally worth reading.

Answer 3

Thanks Tibor Santa

Answer 4

def decor(func):
def wrap():
print("============")
func()
print("============")
return wrap

def print_text():
print("Hello world!")

decor(print_text)

Answer 5

This variations say no output in app version as well