Company
Date Published
Author
Massimiliano Pippi
Word count
2125
Language
English
Hacker News points
3

Summary

The text discusses the challenges and benefits of embedding Python in a Go application, specifically highlighting the use of cgo as a Foreign Function Interface (FFI) to invoke CPython functions. The Datadog Agent is mentioned as an example project that uses this approach to embed Python for executing custom checks without recompiling the agent. The text covers various tradeoffs and limitations, including the overhead introduced by cgo, manual handling of the Global Interpreter Lock (GIL), and limitations on goroutine scheduling. However, it also provides solutions and workarounds to mitigate these issues, such as using go-python for a thin wrapper around the C API and forcing goroutines to run on the same thread using the LockOSThread function from the runtime package. The text concludes that embedding Python in Go is worth the tradeoffs for the convenience of running Python checks in Go.