When transporting a pet snake, it's important to use a secure and escape-proof container such as a well-ventilated plastic terrarium or a snake bag. Make sure the container is appropriately sized for the snake to prevent stress or injury during transportation. Additionally, maintain a consistent temperature range to keep the snake comfortable, and avoid sudden movements or loud noises that could startle the snake. It's also a good idea to cover the container to provide a dark and secure environment for the snake during travel.