Viewing profile — hynek

The fancy word for that is Vertical Slice Architecture btw and it's the only way for complex apps that doesn't end in chaos.

Yes, because it's showing how the simplest-possible mock already gets ugly if you don't follow the advice. Making the example more complicated would dilute the point it's making. T…

> I’m not sure this is good advice. I prefer to test as much of the stack as possible. The most common mistake I see these days is people testing too much in isolation, which leads…

Pretty good, except it’s not Bismarck but Fontane. ;) Also, I’m comparing myself to CGP Grey, not whatever it’s transcribed. :D

ha, I wish I saw that while working on that talk! adding it to the resources!

Shouldn't some AI be able to clean that up for you? This seems something LLMs should be well-suited for. --- FWIW, I'm the speaker and let me be honest with you: I'm super unmotiva…

that's a reference to my attrs library which is what data classes are based on. It originally used @attr.s class C: x = attr.ib() as its main api (with `attr.attrs` and `attr.attri…

Both PDM and Poetry are a) 90% solutions that only cover what their respective authors need (and this is indeed what Python is drowning in) and b) written in Python which makes the…

That is inaccurate. Both Rye and uv have the same goals and support virtualenvs. uv is meant to supplant Rye eventually (it mostly already has: see also this post by the creator of…

It’s much, much faster both in creating virtualenvs and installing the dependencies. And if you use lock/sync, you get a cross-platform lockfile that you only got with PDM and Poet…

The burpee exercise is named after the US physiologist Royal Huddleston Burpee Sr. I know y’all want to fact-check this – I sure did when I heard it the first time: https://en.wiki…

I guess PEP 703 has to be auto-accepted now. I don't make the rules.

Conceptually, Cython is mainly for accelerating Python code, and can _also_ access C code. Meanwhile CFFI is specifically for calling C code and nothing else. I recommend the video…

Right, but that would take some really deep patching of code I don't control, just so it works in development. If this were a production issue, I would probably fork the driver and…

You mean at the Python driver level? Unfortunately, that doesn't work with ctypes. I've tried it by adding the DYLD_LIBRARY_PATH to os.environ before calling ctypes.LibraryLoader.L…

That doesn't help you if there's a surprise call to /bin/sh or /bin/bash somewhere in the call stack. Keep reading, I know it's long but I tried to make it comprehensive. :)

They did (it's me :)) and unfortunately in this case rpath can't be used, because that particular Python driver uses ctypes ( https://docs.python.org/3/library/ctypes.html ) to ope…

Heh sorry I put the date there in the draft phase because I planned for publishing on Tuesday. It got done earlier and I pushed it out in a bit of a hurry because I was leaving and…

I’m aware of all the problems that e2e tests have, and yet I find it more useful to have 1 test that adds something to a basket and 1 test that removes it than 100 unit tests witho…

No, it doesn’t pass over that. It specifically points out that it’s a simplistic example for illustration that probably wouldn’t be worth it. And yet the effects are visible and so…

I’m sorry I’ve apparently misunderstood your point. I guess I’ve never seen too brass imparting more than a big picture “we’re writing tests now”.

I know you’re being facetious but: the lesson is rather that mocking generic third-party APIs is so easy, that you can end up in mocking hell real fast. And that you should take th…

One of the reasons I wrote the linked article is that the wisdom around is quite fragmented and one (there’s always more than one) frustrating answer is good design makes software …

Cue Mock Hell https://www.youtube.com/watch?v=CdKaZ7boiZ4 :)

I can assure you that it is possible and meaningful to have full code coverage in certain contexts (for instance for important projects that get only rarely touched) and doesn’t in…