Why is the output "apple"?

Question

Why is the output not "banana"?
https://code.sololearn.com/c2rQ1jWYh0oy/?ref=app

Answer 1

y in the function is a local variable, it will automatically be destroyed when function call terminates.

You can stop this by declaring the variables to global:
def x():
global y
y = "banana"

Answer 2

Please keep in mind, that *y* defind in first line is a different object as *y* defined in function:

y="apple"
print(id(y))
def x():
y="banana"
print(id(y))
print(y)
x()
print(y)

#output:
139793837036272
apple
139793837036400
apple