is not is a single binary operator, and has behavior different than using is and not separated. is not evaluates to False if the variables on either side of the operator point to the same object and True otherwise.▶ The surprising comma...
is not is a single binary operator, and has behavior different than using is and not separated. is not evaluates to False if the variables on either side of the operator point to the same object and True otherwise.▶ The surprising comma...