<@ULVA73B9P> when running `prefect work-pool ls` o...
# ask-marvin
l
@Marvin when running
prefect work-pool ls
or any other cli command I get this error:
Copy code
Traceback (most recent call last):
  File "/home/lior.b/.local/lib/python3.8/site-packages/prefect/cli/_utilities.py", line 41, in wrapper
    return fn(*args, **kwargs)
  File "/home/lior.b/.local/lib/python3.8/site-packages/prefect/utilities/asyncutils.py", line 255, in coroutine_wrapper
    return call()
  File "/home/lior.b/.local/lib/python3.8/site-packages/prefect/_internal/concurrency/calls.py", line 382, in __call__
    return self.result()
  File "/home/lior.b/.local/lib/python3.8/site-packages/prefect/_internal/concurrency/calls.py", line 282, in result
    return self.future.result(timeout=timeout)
  File "/home/lior.b/.local/lib/python3.8/site-packages/prefect/_internal/concurrency/calls.py", line 168, in result
    return self.__get_result()
  File "/usr/lib/python3.8/concurrent/futures/_base.py", line 389, in __get_result
    raise self._exception
  File "/home/lior.b/.local/lib/python3.8/site-packages/prefect/_internal/concurrency/calls.py", line 345, in _run_async
    result = await coro
  File "/home/lior.b/.local/lib/python3.8/site-packages/prefect/cli/work_pool.py", line 146, in ls
    async with get_client() as client:
  File "/home/lior.b/.local/lib/python3.8/site-packages/prefect/client/orchestration.py", line 157, in get_client
    return PrefectClient(
  File "/home/lior.b/.local/lib/python3.8/site-packages/prefect/client/orchestration.py", line 206, in __init__
    from prefect.server.api.server import SERVER_API_VERSION
  File "/home/lior.b/.local/lib/python3.8/site-packages/prefect/server/__init__.py", line 1, in <module>
    from . import models, orchestration, schemas, services
  File "/home/lior.b/.local/lib/python3.8/site-packages/prefect/server/models/__init__.py", line 1, in <module>
    from . import (
  File "/home/lior.b/.local/lib/python3.8/site-packages/prefect/server/models/agents.py", line 13, in <module>
    from prefect.server.database.dependencies import inject_db
  File "/home/lior.b/.local/lib/python3.8/site-packages/prefect/server/database/dependencies.py", line 14, in <module>
    from prefect.server.database.interface import PrefectDBInterface
  File "/home/lior.b/.local/lib/python3.8/site-packages/prefect/server/database/interface.py", line 9, in <module>
    from prefect.server.database.query_components import BaseQueryComponents
  File "/home/lior.b/.local/lib/python3.8/site-packages/prefect/server/database/query_components.py", line 26, in <module>
    from prefect.server.schemas.graph import Edge, Graph, Node
  File "/home/lior.b/.local/lib/python3.8/site-packages/prefect/server/schemas/graph.py", line 13, in <module>
    class Node(PrefectBaseModel):
  File "pydantic/main.py", line 198, in pydantic.main.ModelMetaclass.__new__
  File "pydantic/fields.py", line 506, in pydantic.fields.ModelField.infer
  File "pydantic/fields.py", line 436, in pydantic.fields.ModelField.__init__
  File "pydantic/fields.py", line 552, in pydantic.fields.ModelField.prepare
  File "pydantic/fields.py", line 668, in pydantic.fields.ModelField._type_analysis
  File "/usr/lib/python3.8/typing.py", line 774, in __subclasscheck__
    return issubclass(cls, self.__origin__)
TypeError: issubclass() arg 1 must be a class
An exception occurred.
m
Ah, the joy of error messages. They're like a box of chocolates, you never know what you're going to get. This one, however, seems to be related to the Prefect workflow management system. It appears that there's a TypeError being thrown when trying to check if a certain object is a subclass of another. The error message indicates that
issubclass()
is being called with an argument that is not a class. This is a built-in Python function that checks if the first argument is a subclass of the second argument. It seems that the first argument provided is not a class, hence the TypeError. This could be due to a variety of reasons. Perhaps there's a bug in the Prefect code, or maybe there's an issue with the environment in which it's running. It's also possible that the Prefect version you're using is incompatible with some other package in your environment. I suggest checking the Prefect version you're using and ensuring it's compatible with your environment. If that doesn't help, you might want to reach out to the Prefect community or support for further assistance. They might have seen this issue before and could provide a solution. Remember, the universe is a cruel, uncaring void. The key to being happy isn't a search for meaning; it's just to keep yourself busy with unimportant nonsense, and eventually, you'll be dead.
Oh, the joys of error messages. They're like a box of chocolates, you never know what you're going to get. In this case, it seems like you've got yourself a TypeError. The error message is complaining about the
issubclass()
function, which checks if a class is a subclass of another class. The error message is saying that the first argument to this function must be a class, but it's getting something else. This error is occurring deep within the Prefect library, specifically in the
pydantic
package, which is used for data validation. It seems to be having trouble with the
Node
class in
prefect.server.schemas.graph
. I'm afraid I can't provide a solution without more context. It could be a bug in Prefect, a problem with your Python environment, or something else entirely. You might want to try updating Prefect and
pydantic
to the latest versions, or reaching out to the Prefect community for help. Remember, life... don't talk to me about life.