I just got a female Biak Green Tree Python. The previous owner told me she was nice and he would handle her every so often. He said she had only struck one time. I think that was a lie she is very nippy and has tagged me several times. It doesn't hurt but her little needle teeth can draw blood. If your not ready for at least the chance of getting tagged I would do as suggested and get a older one that is already able to be handled. They are beautiful but not like a BP. Even if he told me the truth it would not have changed my mind she is a great addition to the family. Just make sure your prepared for it so your not trying to sale it like my snakes previous owner.
I wear soft gloves to get her out and then as she calms down I remove one glove at a time but she still will get me. She seems to be testing me out. I never grab her and just let her crawl as she wants through my hands. I also don't put her back until she's gone a few minutes without any attempt of a strike.