why the answer is 5 and not 7 ???

Question

x= 5
def funA(x,y):
x=7
return x
funA(x,4)
print(x)

Answer 1

varables named x in your first and your third line are different variables, you can have two with the same name because they are not in the same scope. so, when you assign 7 to x, you are actually assigning 7 to x from funA and not the global one. when funA is called, value of the global x is copied to the x which is the argument of the function. this code is equivalent to yours:
x_global = 5
def funA(x_funA,y):
x_funA=7
return x_funA
funA(x_global,4)
print(x_global)

Answer 2

7

Answer 3

@Ranjith kumar, No iam sure it is 5 i am already tried it and the answer was 5

Answer 4

@RedAnt, thanks alot