Hi 👋 I have been running into the following

DeprecationWarning

, which seems to lead to an

ERROR

in my prefect Runner:

ERROR - prefect.FlowRunner | Unexpected error: DeprecationWarning("Using or importing the ABCs from 'collections' instead of from 'collections.abc' is deprecated, and in 3.8 it will stop working")
Traceback (most recent call last):
  File "/usr/local/lib/python3.7/site-packages/prefect/engine/runner.py", line 48, in inner
    new_state = method(self, state, *args, **kwargs)
  File "/usr/local/lib/python3.7/site-packages/prefect/engine/flow_runner.py", line 482, in get_flow_run_state
    key_states = set(flatten_seq([all_final_states[t] for t in reference_tasks]))
  File "/usr/local/lib/python3.7/site-packages/prefect/utilities/collections.py", line 29, in flatten_seq
    if isinstance(item, collections.Iterable) and not isinstance(
  File "/usr/local/lib/python3.7/collections/__init__.py", line 52, in __getattr__
    DeprecationWarning, stacklevel=2)
DeprecationWarning: Using or importing the ABCs from 'collections' instead of from 'collections.abc' is deprecated, and in 3.8 it will stop working

Interesting @Philip Billaudelle what does your Flow look like and which version of Prefect are you running?

Hi @josh, I upgraded to 0.8.0 and it's working fine now. I was on

>=0.5,<0.6

before. Thx for checking my message.

Great!