python

Pydantic v2 schema generation error

pydantic\.errors\.PydanticSchemaGenerationError

Fixes

1.Use model_rebuild() after all models are defined for forward references
2.Replace complex types with simpler annotations or custom types
3.Use ConfigDict(arbitrary_types_allowed=True) for non-standard types

pydanticschema

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