[8589934591]

Wow. Can't believe a couple of these are in my production. Esp with the mixture of py2 and py3. And people who are not well versed in python are just not aware of these gotchas.

Good repo, I learnt quite a few more... wtfs. :)

I have a strong belief that unless type hints, testing, tooling is leveraged properly, python does not qualify as a good candidate for long term projects. Go handles all of this automatically and I'm having good results with it as an alternative to Python for small to medium scale projects.

[jackblemming]

Consider not holding strong beliefs without empirical evidence. There are both plenty of long term python projects that have held up, and no strong evidence one way or the other on type safety.

[globular-toast]

The only evidence I've seen in this respect suggests typing is not the leading cause of bugs in Python. I wish I could find the talk but essentially the guy looked at a load of GitHub issues and analysed the cause and only like 1% or so were type related.

I like putting in types just to help my IDE with autocomplete, though. I have also caught a few errors with mypy that could have caused a crash in very unlikely cases. I'm not convinced it's worth rigourously typing a project. It seems like mostly a nerd snipe because I've noticed there is a satisfaction with getting in right despite not making any difference to the user.

[8589934591]

I'd say requiring types enables faster onboarding and development for new developers than catching bugs. Bugs can only be caught to a certain extent. But figuring out what a each variable is and what they signify when passing them around a large codebase, it becomes essential and helpful to type the code. Pair this with a good IDE/editor, your development is pretty fast.

[8589934591]

There are both merits and demerits to python. Unfortunately not everyone has the opportunity or the luxury to work with projects that are properly maintained. Even messy python projects in legacy companies hold up but that does not mean quality and maintenance costs are good. My beliefs stem from my experience with the jobs available in my area and country. I'm not the expert on type safety but my understanding from various sources and my own experience is that type safety is superior. Go has been the best candidate as the alternative for the projects I have undertaken. YMMV.

[oivey]

For most of these type hints or static typing do not at all help. I haven’t went through all of them, but in the first quarter or so almost all of them were due to leaky compiler weirdness in CPython.

[8589934591]

I haven't tested out the repo with type hints so I can't comment on that. What I did mean to say was outside of this repo, type hints are a huge boon saver. There are enough legacy projects written by non python experts which would benefit from whatever I said above.

[synergy20]

I agree, there should be a book specifically made for python-wtfs, e.g. corner cases, practical hacks, name it as 'python traps and pitfalls'