Aggressive ball python

[Reed12321]

I have a lesser ball python. He was 85 grams when I got him 2 months ago. Eats every week, 90 degree hot spot humidity 50 to 70%. First month and a half everything was great. Then he bite my son about 2 weeks ago and since strikes at anything that moves.
Not sure what happened

young snakes do go through a "teenage" period where they become aggressive, and become snippy. How often do you handle him? What you can do, is before handling him, reach in confidently and grab his middle. Once you pick him up and get him in your hands, he might calm down more and learn to not bite you guys anymore.