What does this error trace mean?

Traceback (most recent call last):
  File "/home/kayvan/anaconda3/envs/prefect-conda/lib/python3.9/site-packages/prefect/engine.py", line 468, in orchestrate_flow_run
    result = await run_sync_in_worker_thread(flow_call)
  File "/home/kayvan/anaconda3/envs/prefect-conda/lib/python3.9/site-packages/prefect/utilities/asyncio.py", line 54, in run_sync_in_worker_thread
    return await anyio.to_thread.run_sync(call, cancellable=True)
  File "/home/kayvan/anaconda3/envs/prefect-conda/lib/python3.9/site-packages/anyio/to_thread.py", line 31, in run_sync
    return await get_asynclib().run_sync_in_worker_thread(
  File "/home/kayvan/anaconda3/envs/prefect-conda/lib/python3.9/site-packages/anyio/_backends/_asyncio.py", line 937, in run_sync_in_worker_thread
    return await future
  File "/home/kayvan/anaconda3/envs/prefect-conda/lib/python3.9/site-packages/anyio/_backends/_asyncio.py", line 867, in run
    result = context.run(func, *args)
  File "/home/kayvan/projects/prefect-demo/flows/spire_current_weather.py", line 55, in spire_current_weather
    sample = random.choice(conf)
  File "/home/kayvan/anaconda3/envs/prefect-conda/lib/python3.9/random.py", line 346, in choice
    return seq[self._randbelow(len(seq))]
TypeError: object of type 'PrefectFuture' has no len()

using random.choice() to select randomly from a list

Are you good now? You can get the result of the PrefectFuture by doing

.result()

and then you can use the

random.choice()

Yeah this one's resolved Thank You for the super fast response