ruamel.yaml 0.18+ compatibility: load() API removed

[mithro]

Summary

The actions_includes module is incompatible with ruamel.yaml 0.18 and later due to a removed API.

Error

When running with ruamel.yaml >= 0.18, the following error occurs:

AttributeError: 
"load()" has been removed, use

  yaml = YAML(typ='rt')
  yaml.load(...)

and register any classes that you use, or check the tag attribute on the loaded data,
instead of file "actions_includes/__init__.py", line 818

    return yaml.load(yaml_data, Loader=RoundTripLoaderWithExp)

Root Cause

The code in actions_includes/__init__.py line 818 uses the old-style API:

return yaml.load(yaml_data, Loader=RoundTripLoaderWithExp)

This API was deprecated and then removed in ruamel.yaml 0.18 (released 2023).

Workaround

For now, users can pin to an older version of ruamel.yaml:

ruamel.yaml<0.18

Suggested Fix

Update the YAML loading code to use the new API:

from ruamel.yaml import YAML

yaml = YAML(typ='rt')  # round-trip mode
data = yaml.load(yaml_data)

This will require updating how the custom RoundTripLoaderWithExp loader is integrated, as the new API uses a different mechanism for custom constructors.

Environment

• Python 3.13
• ruamel.yaml 0.18+

🤖 Generated with Claude Code

[mithro]

Workaround Implemented

PR #51 implements a temporary workaround by pinning ruamel.yaml<0.18 in setup.py.

This issue should remain open - the workaround just pins to an older version. The proper fix is still needed:

1. Update actions_includes/__init__.py to use the new ruamel.yaml 0.18+ API:

   # Old API (removed in 0.18):
   yaml.load(yaml_data, Loader=RoundTripLoaderWithExp)
   
   # New API:
   yaml = YAML(typ='rt')
   yaml.load(yaml_data)

2. Update how the custom RoundTripLoaderWithExp loader is integrated (the new API uses a different mechanism for custom constructors)

3. Remove the version pin from setup.py once the code is updated

The version pin is a temporary measure to unblock CI while the proper migration is implemented.