Dagger is a programmable CI/CD engine that runs pipelines in containers, allowing developers to develop their CI/CD pipelines as code in the same programming language as their application. The Dagger Python SDK enables Python developers to create and run their CI/CD pipelines locally in seconds, instead of relying on proprietary services. This new SDK offers several benefits, including instant local testing, portability, superior caching, compatibility with the Docker ecosystem, and cross-language instrumentation. It is designed to help teams unify continuous delivery across organizational silos and improve integration with their organization's CI/CD pipelines. The Dagger team plans to release more SDKs in the future, allowing developers to develop their CI/CD pipelines with the language of their choice.