Python (python-script@v1)

Run a small Python transform or glue step with action-owned Python and optional requirements.

• Repository: dagucloud/python-script
• Runtime owned by the action: astral-sh/uv@0.11.14 through action tools; default Python 3.13.9

Contributions are welcome. The repository is public, so improvements, bug reports, and pull requests can go to dagucloud/python-script.

Example

steps:
  - id: compute
    action: python-script@v1
    with:
      input:
        version: "2.3.4"
        services: ["api", "worker", "scheduler"]
      requirements:
        - packaging==25.0
      script: |
        from packaging.version import Version

        version = Version(input["version"])

        return {
            "major": version.major,
            "serviceCount": len(input["services"]),
        }

  - id: print
    run: echo "major version is ${compute.outputs.result.major}"
    depends: compute

script is a Python async function body. return publishes result, and await works directly. The action exposes input, params, and env.

The requirements field is optional. When present, each entry is passed to uv run --with, so pin dependencies for reproducible runs.

Outputs

Field	Description
ok	true when the script completed successfully.
result	JSON-compatible value returned by the script.
stdout	Text written to stdout with print() or other stdout writes.
stderr	Text written to stderr by the script process.
durationMs	Wrapper-measured duration in milliseconds.
pythonVersion	Python version used by the script process.
error	Error object when the script fails.

Related

• Official Dagu Actions
• Action Package Execution