First of all, that is a gophersnake, not a pinesnake or ratsnake. Recent changes in taxonomy have split the pine snakes from the gopher/bullsnakes (Pituophis melanoleucus and Pituophis catenifer are separate species). The names are not interchangeable any more than the names kingsnake and ratsnake would be.
Of course, there are local colloquial names for snakes, but those names are not the "correct" names for the species and often are used out of ignorance (or apathy) of the species that occur locally.
Taming a snake is just a matter of getting it used to being handled. First, you have to not be afraid of it. If it bites you, it isn't going to hurt you. Then handle it a few minutes (5 or less) each day while holding it over a bed. That way if it dives out of your hands, it will not fall on the floor and get injured. Don't handle the day of or two days after feeding.
After a week or so of this it will stop being terrified of you and will calm down nicely.
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Chris Harrison