Why there is no output??

Question

def multiply(x, y):
return x * y

a = 4
b = 7
operation = multiply
print(operation(a, b))
#it retuns value but when we remove print means
def multiply(x, y):
return x * y

a = 4
b = 7
operation = multiply
operation(a, b)
#then it shows no output

Answer 1

Yes, but you rather print variables or the output of functions.

a = multiply(x,y)
print(a)
yields the same as
print(multiply(x,y))

In the second case, the output value is just stored temporarely

Answer 2

Well, the calculations happen as usual. But to show output, you need to print it of course.

Answer 3

#i am confused
def f():
print("@")
f()
#then it is returns '@' Matthias

Answer 4

Because you tell to print the string "@".
What is your intendet behavior?
Maybe you are confusing return and print?

Answer 5

Matthias
you mean to say that we have to use print to print any function
i understood thank you

Answer 6

Yes, Python won't print anything unless you tell it to. This allows you to do

a = multiply(x, y)

Answer 7

Vlad Serbu print(a)??

Answer 8

Matthias thanks