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What is asyncio.TaskGroup and why does it replace gather?

Q: What is asyncio.TaskGroup and why does it replace gather?

`asyncio.TaskGroup` (3.11) provides structured concurrency: tasks are scoped to the `async with` block, auto-cancelled on error, and errors combine into an `ExceptionGroup`. gather: loose TaskGroup: structured | | asyncio.gather | asyncio.TaskGroup | |---|---|---| | Scope | Unscoped, manual cancel | Scoped `async with` auto-joins/cancels | | Error on multi-fail | First exception (or return_exceptions) | `ExceptionGroup` with all errors | | Cancellation | Must cancel children yourself | Cancels siblings on first error

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Structured concurrency in Python 3.11+ with TaskGroup.

asynciotaskgroup

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asyncio.TaskGroup (3.11) provides structured concurrency: tasks are scoped to the async with block, auto-cancelled on error, and errors combine into an ExceptionGroup.

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