I don't know, isn't it possible to do the equivalent of mutable assignment if I use the same variable name several times? For instance for the equivalent of x

I don't know, isn't it possible to do the equivalent of mutable assignment if I use the same variable name several times? For instance for the equivalent of x = 3; x = x + 1; print(x): (lambda x: (lambda x: print(x))(x+1))(3);