feeding questions?

okay so now I'm a bit confused I'm wondering should I feed my ball python in its cage or outside of its cage it's confusing I already fed her once inside the cage but people are telling me not to any help is appreciated

You will encounter more problems feeding outside than in. Such as being bit, causing a regurgitation and space and time issues if you have more than one. They do not learn cage aggressiveness from feeding inside their enclosure, you will be fine.

I think what I'll do is feed her inside her terrarium and if she gets aggressive then start doing it in a sterlight container

I have fed my BP in his enclosure for 3 years, he has never once struck at me, or showed any sign of aggression.

There is actually no evidence anywhere that feeding inside the terrarium creates aggression. In fact, most experienced snake owners feed inside their cages.
It's always the beginners who hear about the myth that feeding outside the enclosure tames aggression.