I'm testing an upgrade of the python

pulumi-aws

from 5.10 to 6.12 and i'm seeing an

AssertionError: Unexpected type. Expected 'list' got '<class 'str'>'

that I believe I've narrowed down to uses of

aws.lambda_.EventSourceMapping

resources (by moving a

return

statement around to find the resource that causes it to fail), e.g.:

aws.lambda_.EventSourceMapping(
    "queue",
    event_source_arn=queue.arn,
    function_name=lambda_.arn,
    opts=opts,
)

I've verified that

queue.arn

and

lambda_.arn

are strings and that the documentation and SDK code both list these parameters as

str

not

list

so I suspect this is a bug. It's impacting all projects that use

EventSourceMapping

. I can use the

pulumi-aws-native

provider as a workaround (same code, different provider) but it's a bit messy to have to make that change everywhere for this one resource. Is there any thing else I could try looking into to resolve this? Is this a known issue? Thanks.

Hi Chris, sorry you're hitting this. Appreciate filing a new issue here! My team prioritizes regressions and we'd love to get this fixed.

Sure, I'll put it in. In the meantime we'll use aws-native. Thank you.

Thank you! We'll have a look as time permits