Observe the calling process of these two fubctions.

Question

#function 1.
def my_func():
print("span")
print("spam")
print("spam")
my_func()
#function 2.
def max (x,y)
if x>=y:
return x
else:
return y:
print(max(4,7))
In the last line of the #function 1.
The keyword "print" is not required for calling the function.
But in the last line of #function 2.
Why is the keyword "print" necessary for calling the function.i mean can i just called it by writing max(4,7).

Answer 1

yes you can call it just by writing max(4,7), but it won't write anything on the screen.
that's because inside function1 there are already some print and it doesn't​ return anything.
instead function2 returns a value but doesn't print anything, so you need a print to print 7.
for example you can assign the value of max(4,7) to a variable like this
a=max(4,7)
and a will have the value of 7

Answer 2

Won't the variable a not allow you to call it globally in the rest of the code? That is its self contained within the function?