why is the output of this code would be like that? i have executed the program in sololearn compiler but the output was strange.

Question

def hello():
print ('hello world')
s=hello()
print(s)
print ('ali')
hello()
print ('---')
def hello_2():
return 'hello world2'
s=hello_2()
print(s)
def hello_3(p):
print(p)
s='hello_world3'
hello_3(s)

----------------------------------------
output:

hello world
hello_world3
ali
hello world
---
hello world2
hello_world3

Answer 1

Save code and share link here,.,

Your hello() function have no return value so it returns none implicitly...
So
s=hello()
print(s) # output none
Not hello_world3
What is other strange you mean here.. Add your expected outout..!!

Answer 2

ReferenceError: s is not defined

That's the error message I get.

Answer 3

may i ask you try it now Gordon ?

Answer 4

Why you calling the function on assigning it to a variable do:
S= hello
Not:
S = hello()