The python disappeared on June 10 after a security guard opened the hole used to feed the snake because the animal seemed to be in discomfort. He then walked away without shutting it.
The incident had forced the closure of parts of the zoo and led to a criminal investigation into whether the snake had been stolen.
An extensive search of the zoo grounds, with thermal cameras, turned up nothing and a cabinet minister suggested at the time that the snake might have ended up through a kebab merchant's meat grinder and advised against eating shish kebab.
However on Thursday, zoo officials finally found the python sleeping in the ventilation shaft of its cage after they noticed discarded snake skin outside the shaft.
The 70 kilogram python was returned to its cage after a one hour effort by six staff to catch him.