What does Python mean?
Greek Python, the great earth-serpent/dragon of Delphi slain by Apollo. Flag: this is the NAME OF a mythological serpent, not a word meaning 'serpent'; it is usually tied to the place-name Pytho and the verb pythein 'to rot' (folk-etymologized from the creature's rotting body), so the serpent association is mythological, not a literal translation.
What does Dositheus mean?
Latinized form of Greek Dositheos, from dosis 'a giving/gift' + theos 'God' — 'gift of God' (more literally 'giving to God'). The reversed-element counterpart is Theodosius.