I’m attempting to use the

openapi

backend (added to my

pants.toml

):

pants.backend.experimental.openapi
pants.backend.experimental.openapi.codegen.java

released in

2.15.x

, but get an error when running

pants check src::

09:32:29.46 [ERROR] Failed to load the pants.backend.experimental.openapi.codegen.java.register backend: ModuleNotFoundError("No module named 'pants.backend.experimental.openapi.codegen'")

I’m running pants

2.17.x

and the backend code is definitely there https://github.com/pantsbuild/pants/tree/2.17.x/src/python/pants/backend/experimental/openapi/codegen/java

A frequent Pants error: https://github.com/pantsbuild/pants/blob/3ba02a26778a15f632cf49d8c4cff4a8cf1fc4ea/src/python/pants/bin/BUILD#L51-L52 There are missing deps there on the java stuff.

I see! Happy to open an issue as the

openapi.codegen.java

backend is something my team would definitely want to use. As for tackling it, think I need to understand the problem more, especially what “this is a bug in Pants own packaging” really means, but we can discuss more in the issue which I can open some time today

especially what “this is a bug in Pants own packaging” really means

Pants needs all of the backends to be listed as dependencies in the list of backends in the

BUILD

file to which that link points. An entry for

pants.backend.experimental.openapi.codegen.java

is missing from that list which is why that backend was not packaged in the Pants release.

thanks for providing clarity on the issue @fast-nail-55400 👍