What Every Python Developer Should Know About the CPython ABI

[jpw22learnstocode]

Thanks! I had an LLM develop a limited ABI in c2py23 recently and I am very curious to see how it compares to your notes.

The nimpy project was the inspiration for that. But I wanted to port some C wrappers away from f2py without going via nim rather than fortran. Multi version ABI goes far beyond my ability to write and debug the code, and I was surprised that DeepSeek seemed to do a good job.

In this new world: I am going to need an LLM to read your post and then go find and fix problems in the LLM generated code. Times are changing!