Converting var to int

Question

x = "2"
int(x)
print( x + 2 )

why does this input produce an error?

Answer 1

x = "2"
x = int(x)
print( x + 2 )

...see why...

Answer 2

You can also do print(int(x))

Answer 3

ah, that explains it, thanks!

Answer 4

this is because you have not assigned a variable for int(x) if you assign x="2" and then will print x+2 it will obviously show error
you should define a variable y=int(x) then print y+2 it will show correct output