Python

Python (Greek: Πύθων, gen.: Πύθωνος) was the earth-dragon of Delphi. He presided at the Delphic oracle, which existed in the cult center for his mother, Gaea.

Python became the chthonic enemy of the later Olympian deity Apollo, who slew him and remade Python's former home and the oracle, the most famous in Classical Greece, as his own.

The Blood of Olympus
Python is mentioned as having been revived by Gaea to once again oppose Apollo. Python's recapture of Delphi is named as one of Apollo's many failures in the second Gigantomachy.