Fast and Reproducible Tests, Packaging, and Deploys with Hermetic Builds

Explore how to achieve fast and reproducible tests, packaging, and deployments using hermetic environments in this PyCon US talk. Learn about the challenges of incompatible development and deployment environments, and how side-effects from running tests or compiling extensions can affect workflow correctness. Discover the concept of hermetic builds and how Pantsbuild automatically implements them, ensuring each step runs in isolation with only necessary inputs and true outputs. Compare Pants' approach to other sandboxing methods and understand the benefits of adding hermetic builds to your project. Gain confidence in creating reproducible environments that work consistently across different machines, eliminating the "works on my machine" problem and improving overall development efficiency.