They can be timid. Years ago most were wild caught would not eat and only ball up when handled. Now a days the captive bred specimens are much more fun lol..
Used to have my own breeding facility. Imported a lot and had over 100 breeder snakes from black head pythons, green tree, jaguar carpets, boelenes pythons, 4 types of retics & many more.
If you have any questions let me know. I sold everything about 8 years ago because I had no time anymore for it.