In a little bitty nutshell...
Bloods & short-tails are marathon breeders & you may find them locked up for a day or two upon successful introduction. I pair and separate multiple times throughout the season until snakes no longer show interest.
Female bloods & STPs can retain sperm for over a year, so use caution when rotating out males or pairing different animals if the female hasn't produced from previous confirmed breedings. Males can breed more than one female in a season but many folks don't for various reasons.
It's easy to breed average blood pythons. Good ones take time & thoughtful planning, IMHO.