Find alternative to deprecated nest-asyncio dependency

[matthewfeickert]

On 2024-03-06 https://github.com/erdewit/nest_asyncio was archived, meaning that nest-asyncio is now unsupported and should be treated as deprecated (for very sad reasons I'm afraid, as the project author died).

The dependency is used in

ServiceX_frontend/servicex/databinder/databinder_deliver.py

Lines 33 to 39 in 4b8403c

	import nest_asyncio
	from servicex.databinder.databinder_requests import DataBinderRequests
	from servicex.databinder.databinder_outputs import OutputHandler
	from servicex.expandable_progress import ExpandableProgress
	nest_asyncio.apply()

and was added in PR #333. @kyungeonchoi it looks like this was targeting a pretty particular issue of nested event loops in async workflows, so while I don't think it is a high priority to migrate now having the servicex client depend on archived and unsupported software is a problem that will need to get mitigated in the future. Do you have any thoughts on alternative libraries?

[kyungeonchoi]

Thanks @matthewfeickert for following this up! Most of databinder features are now migrated to the core library of servicex==3.X and all files under databinder directory are deprecated. I still want to review my old codes under databinder directory before I delete them. I think it's okay to close this issue.

[gordonwatts]

Ops - sorry - I don't understand what action was taken. In 3.0 is the nest-asyncio dependency removed? If so, then I agree, this should be closed. Otherwise either a issue to remove it should be created or this should remain open until there is a plan.

[kyungeonchoi]

@BenGalewsky can correct me - but my understanding is we simply use asyncio.gather now