ivy
pyright-python
ivy | pyright-python | |
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13 | 2 | |
1,300 | 140 | |
- | - | |
8.0 | 8.0 | |
about 2 months ago | 7 days ago | |
Go | Python | |
GNU General Public License v3.0 or later | MIT License |
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ivy
- Ivy, an APL-Like Calculator
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Uiua: A minimal stack-based, array-based language
My recent exposure to array programming languages came via a podcast called The Array Cast[1]
Not affiliated, just recommending. The regular co-hosts appear to each be experienced with various array languages such as J, APL, etc. They don't get deeply technical, but it's a nice introduction, especially on explaining the appeal.
A recent episode had Rob Pike (UTF-8, Go, etc.) on to talk about his array based calculator, Ivy[2]
[1] https://www.arraycast.com/
[2] https://github.com/robpike/ivy
- APL: An Array Oriented Programming Language (2018)
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APL deserves its Renaissance too
I enjoyed russ cox's advent of code series using rob pike's ivy (https://github.com/robpike/ivy), an apl-like calculator
https://www.youtube.com/playlist?list=PLrwpzH1_9ufMLOB6BAdzO...
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Looking for programming languages created with Go
Ivy is an APL-like programming language created by Rob Pike https://github.com/robpike/ivy
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BQN: Finally, an APL for your flying saucer
Ivy is another APL like language and one I kind of enjoy, because operations are actually readable and writable.
https://github.com/robpike/ivy
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Ivy: Rob Pike's APL-Like Language / Desk Calculator
I really like Ivy as a simple, friendly introduction to APL. There is a surprising lack of APL-derived languages that use words to name things -- most stick with the original symbols; J and friends choose equally-cryptic symbols composed of ASCII characters.
Earlier this year I decided to solve AoC 2021 in Ivy, then watch Russ Cox's videos to see how he did it and use that to learn something about array programming -- a topic I knew absolutely nothing about going into this.
Unfortunately, Ivy really is, as Rob Pike says, a plaything. It is buggy -- if you ever write a function that returns a vector or a higher-rank array, you are entering bizarre undefined behavior territory. The array-language equivalent of "concat_map" or "flat_map" or "map-cat" or whatever you want to call it just produces garbage values, which is very confusing when you're learning about array programming for the first time ("Wait, this vector says its length is 25, but it contains 50 elements...?" or "The transpose of this array is just the first column repeated over and over??").
Beyond that, a very cool thing about array languages is that, you know, functions can implicitly act on entire arrays. You can multiple a vector by 2 and it will know to multiply every element in the vector by 2, because multiplication is defined for scalars.
But in Ivy, this is only true for the built-in functions. There is no way to write user-defined functions that have this implicit act-on-every-element behavior. Which is basically the looping primitive in array languages -- so to do anything nontrivial, you have to write it out with explicit recursion (still with the caveat that your functions can only return scalars, or you enter undefined behavior town) or rewrite your operations as binary operations with an ignored right-hand side and use "fold" to "map" them. It's bad.
The latter is crippling enough that Russ Cox [eventually forks Ivy](https://github.com/robpike/ivy/pull/83) to add support for it, but it is not currently part of the language.
Anyway that's a long comment to say: Ivy is a good, friendly introduction to APL syntax (stranding, precedence, etc) and some array language concepts, but it is far more of a calculator than a programming language.
But it's a good arbitrary-precision calculator! And if you're still interested in trying it, maybe check out this thing I made. It's an... Ivy programming environment?... that lets you run Ivy scripts and see the results inline. (Ivy's repl is... very primitive, and has to be wrapped by something like readline. Russ Cox uses 9term to get around this; self-modifying programs are my preferred approach.)
https://github.com/ianthehenry/privy
My frustration with Ivy led me to look into other array languages, trying to find one that 1) used English words instead of cryptic symbols and 2) worked. And I really couldn't find any! Someone should do something about that. :)
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may I ask for a code-review on a tool I wrote that lets you cast YouTube videos to your smart TV from command-line?
But your project is all about the command ytdial, so I think having a separate cmd directory is superfluous. Rob Pike also has project ivy which is laid out like this.
pyright-python
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Emulating React/Angular components in Django
Nix is unnecessary and will kill adoption from being too heavy handed. Use pip package nodeenv for an isolated node install. Check https://github.com/RobertCraigie/pyright-python for an example of a python package that relies on node.
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Do you recommend learning go for an interpreter project?
You can statically type Python if you want. It has the syntax for it, but you need to use an external type checker like Pyright. It's easy to use with VS Code.
What are some alternatives?
selectrum - 🔔 Better solution for incremental narrowing in Emacs.
video-to-ascii - It is a simple python package to play videos in the terminal using characters as pixels
go-parsing - A Multi-Package Go Repo Focused on Text Parsing, with Lexers, Parsers, and Related Utils
Crafting Interpreters - Repository for the book "Crafting Interpreters"
lisp - Toy Lisp 1.5 interpreter
ivy - The Unified AI Framework
mitchellh/cli - A Go library for implementing command-line interfaces.
BQN - An APL-like programming language. Self-hosted!
pipupgrade - 🗽 Like yarn outdated/upgrade, but for pip. Upgrade all your pip packages and automate your Python Dependency Management.
ytcast - cast YouTube videos to your smart TV from command-line