Hi wave anim I’m creating my own resource by extending the

ConfigurableResource

. As per the Dagster docs, this means the new resource implements

ResourceDefinition

class MyResource(ConfigurableResource)

However, when passing the resource to a graph, mypy complains that the resource passed across is an incompatible type

my_resource = MyResource(...)

my_graph.to_job(
    name="my_job",
    resource_defs={
        "my_resource": my_resource,  # of type MyResource
    },
)

The mypy output:

Argument "my_resource" to "my_job" has incompatible type "MyResource"; expected "ResourceDefinition"

Can anyone advise how this can be resolved? Using

dagster==1.4.6

try:

my_graph.to_job(
    name="my_job",
    resource_defs={
        "my_resource": MyResource,  # of type MyResource
    },
)

Hi Odette, in my example.

my_resource

is already a constructed

MyResource

. E.g.:

my_resource = MyResource(...)

gotcha - let me take a look

I’m having the same issue, I think this is a bug. Basically

ConfigurableResource

objects fail the

isinstance

check with type

ResourceDefinition

, as opposed to what says in the doc https://docs.dagster.io/_apidocs/resources#dagster.ConfigurableResource

This class is a subclass of both

ResourceDefinition

and

Config

.

Example:

>>> from dagster import ConfigurableResource, ResourceDefinition
>>> class MyResource(ConfigurableResource):
...     name: str
... 
>>> my_resource = MyResource(name="abc")
>>> isinstance(my_resource, ResourceDefinition)
False