nexus VS trio

Nexus: https://github.com/jfilby/nexus

This is a web framework + ORM for Nim. It's in desperate need of more work to support DBs other than PostgreSQL and make the ORM more flexible. The web side also needs more work.

I use it mainly for high-performance backend engines. E.g. I'm writing an automated trading system and the trading engine is written in Nim.

I wrote a Nim web framework that has an ORM: https://github.com/jfilby/nexus. However I mainly use the ORM with the back-end engines. You could write a Django-style web app with Nexus + Nimja, but it's difficult to compete with the huge ecosystems of React and Flutter.

It's not good for Nim, unfortunately. The language is great, but the community isn't that big.

If you're looking for a web framework with an ORM for Nim, check out Nexus: https://github.com/jfilby/nexus

There's no Discord yet, just GitHub issues. Here's an issue to track this request: https://github.com/jfilby/nexus/issues/14

I'll email you regarding what/how to help.

Django is a great MVC framework. It might be overkill for a blog as another poster wrote, but it's still a good way to learn Django.

If you ever want to learn Nim, please consider Nexus (https://github.com/jfilby/nexus) as I'm building it to be something like Django for Nim.

Nexus is a Nim development framework.

https://github.com/jfilby/nexus

The aim to create a web framework similar to Django, with a built-in ORM. The view layer needs work, and is mostly built out of available libraries with Jester for routing and Nimja for templating.

Nexus Development Framework, for Nim, is now available: https://github.com/jfilby/nexus

Nim. It's just so quick and easy to write high performance code. That's why I'm writing a web framework for it, soon to be released: https://github.com/jfilby/nexus

Incidentally, the alternative event loop implementation trio in python does not have "gather", you also need channels, and it's a deliberate design choice - there is some discussion about that in this ticket https://github.com/python-trio/trio/issues/2188

trio – a friendly Python library for async concurrency and I/O

trio. the best code, the best documentation, awesome community.

I'll +1 the Trio shoutout [1], but it's worth emphasizing that the core concept of Trio (nurseries) now exists in the stdlib in the form of task groups [2]. The article mentions this very briefly, but it's easy to miss, and I wouldn't describe it as a solution to this bug, anyways. Rather, it's more of a different way of writing multitasking code, which happens to make this class of bug impossible.

[1] https://github.com/python-trio/trio

[2] https://docs.python.org/3/library/asyncio-task.html#task-gro...

It's similar to manual memory management.

Structured concurrency is one approach to solving this problem. In a structured concurrency a promise would not go out of scope unhandled. Not sure how you would add APIs for it though.

See Python's trio nurseries idea which uses a python context manager.

https://github.com/python-trio/trio

I'm working on a syntax for state machines and it could be used as a DSL for promises. It looks similar to a bash pipeline but it matches predicates similar to prolog.

In theory you could wire up a tree of structured concurrency with this DSL.

https://github.com/samsquire/ideas4#558-assign-location-mult...

Not complete - doesn't include Task Groups [1]

In fairness they were only included in asyncio as of Python 3.11, which was released a couple of weeks ago.

These were an idea originally from Trio [2] where they're called "nurseries" instead of "task groups". My view is that you're better off using Trio, or at least anyio [3] which gives a Trio-like interface to asyncio. One particularly nice thing about Trio (and anyio) is that there's no way to spawn background tasks except to use task groups i.e. there's no analogue of asyncio's create_task() function. That is good because it guarantees that no task is ever left accidentally running in the background and no exception left silently uncaught.

[1] https://docs.python.org/3/library/asyncio-task.html#task-gro...

[2] https://github.com/python-trio/trio

[3] https://anyio.readthedocs.io/en/latest/