How do you know...?

we are experiencing El Nino here, temp spike up to 40 Celsius.... so it's really hot...
BTW, added another hide same as the one i have it's an old ice cream box(whatever it's called).... Also my BP pooped today... Last feeding was thursday last week, when should i feed him again?

Around when will I expect start of shedding?

You should be feeding him about once a week. Shedding varies from snake to snake.

There's loads of good info here:
http://www.ball-pythons.net/modules/...warticle&id=59