python

Pydantic model with unhashable field in set/dict key

TypeError: unhashable type: 'dict'.*Pydantic

Fixes

1.Use frozenset or tuple instead of list/dict in hashable contexts
2.Implement __hash__ on custom types used as fields
3.Use ConfigDict(frozen=True) to make the model hashable

pydantichashable

Related Errors

Asyncio event loop already running

RuntimeError: This event loop is already running

•Use nest_asyncio.apply() to allow nested event loops
•Use asyncio.run_coroutine_threadsafe() instead of asyncio.run()

Coroutine never awaited

RuntimeWarning: coroutine '.*' was never awaited

•Add 'await' before the coroutine call
•Use asyncio.create_task() to schedule the coroutine

Asyncio task was cancelled

asyncio\.CancelledError

•Handle CancelledError in try/except within the task
•Use asyncio.shield() to protect critical sections from cancellation