Python (ピュートーン, Πύθων?) are draconic Phantasmal Species found in the Atlantic Lostbelt.
History
Fate/Grand Order
Atlantis: Ancient Ocean of the Dreadnought Gods
Characteristics
In Fate/Grand Order, they appear as enemies, introduced in the Atlantic Lostbelt.
Python's Saint Graph Designation are Saber and Lancer in Fate/Grand Order.
References
Python is a creation of Gaia, and was ordered by Hera To hunt down Leto for bearing Zeus children, Artemis and Apollo.