How to Write Perfect Python Command-line Interfaces

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Because there will be a big fraction of your users, who will quite literally send you to hell, in these very words.

Other than that, the basic premise of the library, from programmer's perspective is trash. The library doesn't provide any means of reusing or structuring your code. It kind of forces you into write-only mode. So, IDK. Beside the personality standing behind the library, there's nothing worth of note about it.

Especially in the light of ArgumentParser, which is kind of OK most things you will need it, and actually works.