python

TorchScript type error with None value

torch\.jit\.Error.*expected.*Tensor.*got.*None

Fixes

1.Use Optional[torch.Tensor] annotation for nullable returns
2.Add explicit None checks before tensor operations in scripted code
3.Use torch.jit.is_scripting() for conditional logic

pytorchtorchscript

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