What is decorator and how to use it wit Python programming language?

Which of the following is a way the operating system prevents unknown or unauthorized users from accessing the system?

What is a rush associated with alcohol?

1. declare a constant named cents_per_pound and initialize with 25. 2. get the shipping weight from user input storing the weight into shipweightpounds. 3. using flat_fee_cents and cents_per_pound constants, assign shipcostcents with the cost of shipping a package weighing shipweightpounds.