pn.ws.on_replay(...)for best-effort settlement replay;sub.on_overflow(...)for local event loss;perps.on_reconnect(...)for a possible perps gap;perps.on_overflow(...)for local perps loss;integrity_errorfor PN1 books that are gated until a fresh anchor succeeds.
Python
Python Errors
Handle HTTP, WebSocket, reconnect, overflow, and orderbook-integrity failures in Python.

