Lanterna
rich
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Lanterna | rich | |
---|---|---|
19 | 148 | |
2,196 | 46,981 | |
- | 0.9% | |
7.2 | 8.3 | |
about 2 months ago | 7 days ago | |
Java | Python | |
GNU Lesser General Public License v3.0 only | MIT License |
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Lanterna
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Textual Web: TUIs for the Web
I wrote a TUI before for work, entirely of my own volition and for my own near-exclusive consumption (it was theoretically for anyone, but I'm the only person who would've had a reason to look at it - we were a fairly silo'd dev shop).
This is what made me pick TUI over a web UI:
* no web stack, period. no client/server. no js or html. this simplified the problem dramatically. also, no additional services to babysit.
* no browser - no certificates, security, auth, etc. It's just unix permissions and ssh.
* there's something comforting about the constraints of just ASCII/ANSI and curses. No bikeshedding over border widths or radii when it's just you picking among a few characters for the shape. just having less decisions to make speeds things up and helps you focus on what you actually want the UI to be able to do.
Obviously if your app is just calling APIs anyway, that might be negate some of these bullets about no additional services to babysit etc. In this case, it was running an internal infra app that directly connected to a pg db.
And what made me pick it over just having a CLI:
* discoverability - it was a complicated app and while it was all technically exposed via cli flags, having a GUI made it a lot easier to figure out what the right incantation is.
* richer communication medium that's back-and-forth instead of unidirectional. The TUI is able to fetch a list of e.g. valid IDs and let you pick them with a check-list, instead of you having to go query the db yourself and type them in.
I consider it one of my greatest victories that my boss was able to use the TUI to recover from an incident without needing to page me while I was on holiday, and he said he barely had to read the docs and felt confident he was getting it right the first time. "I did it while sipping my coffee."
I used https://github.com/mabe02/lanterna - would recommend. They even have a Swing-based emulation mode for easy development iteration running it from intelliJ.
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Textual: Rapid Application Development Framework for Python
This looks really cool.
In the past I used lanterna (https://github.com/mabe02/lanterna/tree/master) to develop a text UI for a critical process at the trading firm I worked at. It was essentially a process that would take updated market data and handle things that changed between the last trading session and today - like symbol renames (PCLN to BKNG), changes to market cap that make it change what "category" it fell into (they were based on market cap and volatility measures etc). Things of that nature, that the realtime system didn't handle but happened too often or were too hairy for us to just handle manually.
The system had a desktop UI component that was oriented towards use by our trading staff. We didn't really have notion of a "server UI" and the server was headless.
Nobody at our firm was a frontend developer, just backend, systems and data programmers who occasionally dabbled in frontend. So web UIs were very simplistic or highly specific to their use-case, we had no shared tooling.
In 2023 with things like create-react-app and whatever next.js does, I probably would've opted for one of those. I could've made another desktop app but I wanted to be able to easily get to this from a shitty ssh connection over tethered 4g when I was on-call. So X11 forwarding and RDP were out. So i looked around for a TUI-builder in the project's language, Java.
What i really liked about Lanterna was that it had a Swing-based implementation which meant I could easily run it from IntelliJ, and that would let me iterate rapidly, and then in production I could run it in a terminal via SSH directly on the machine the server was on (which had certain advantages).
I'll keep an eye on this to see if I can think of anything neat to build on it. I still generally don't like web apps because they feel like they take a lot of effort to get something compared to a functionally-equivalent product built in something non-browser-based like a TUI or desktop GUI.
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What options are there for making GUIs and other visual programs using java?
Just to differ what others already mentioned: Lanterna. Pretty retro GUIs just for fun.
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Library like Python Rich
Lanterna https://github.com/mabe02/lanterna Has examples for most of the things you're looking for (see links in https://github.com/mabe02/lanterna/blob/master/docs/contents.md)
- Terminal Design Through Java.
- Nimwave – build TUIs for the terminal, web, and desktop
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How to modify lines in console (Java 8)
You can use a library such as https://github.com/mabe02/lanterna to do fancy console printing. You could even do full console UIs, but just printing lines and moving the cursor and so on is also possible I think.
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Aquifer: GUI generator for command line apps
There is lanterna for that.
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Textual in Clojure?
You can use https://github.com/mabe02/lanterna
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What are some features necessary in an ASCII-graphics library?
Is this just a personal excercise? Because https://github.com/mabe02/lanterna is pretty much what you're talking about and pretty good.
rich
- Rich is a Python library for rich text and beautiful formatting in the terminal
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Neat Parallel Output in Python
There is an open issue [1] on GitHub to make it more modular and get rid of markdown and syntax highlighting but I have no hope for rich to get more minimal.
[1]: https://github.com/Textualize/rich/issues/2277
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Ask HN: Programmers and Technologists in Scotland
I hope he doesn't mind, but the creator of Rich and Textualize is a good guy, and Scottish: https://www.willmcgugan.com/about/
https://www.textualize.io/
https://github.com/Textualize/rich
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Python 3.12
They keep getting improved error messaging and this is one of my favorite features. But I'd love if we could get some real rich text. Idk if anyone else uses rich, but it has infected all my programs now. Not just to print with colors, but because it makes debugging so much easier. Not just print(f"{var=}") but the handler[0,1]. Color is so important to these types of things and so is formatting. Plus, the progress bars are nice and have almost completely replaced tqdm for me[2]. They're just easier and prettier.
[0] https://rich.readthedocs.io/en/stable/logging.html
[1] Try this example: https://github.com/Textualize/rich/blob/master/examples/exce...
[2] Side note: does anyone know how to get these properly working when using DDP with pytorch? I get flickering when using this and I think it is actually down to a pytorch issue and how they're handling their loggers and flushing the screen. I know pytorch doesn't want to depend on rich, but hey, pip uses rich so why shouldn't everyone?
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colors.crumb - first Crumb usable. Extending Crumb with basic terminal styling and RGB, HEX, ANSI conversion functions.
colors.crumb extends Crumb with basic terminal styling functions and RGB, HEX, ANSI conversion functions. It is in the realm of JavaScript's chalk and Python's rich but slightly more functional 😉.
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Textual: Rapid Application Development Framework for Python
I am working on a new python project and one of the first things I added was https://github.com/Textualize/rich because of how easy it is to make things look good in the terminal.
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What are you rewriting in rust?
I am not rewriting anything but I'd love to have a library like `rich` in Rust: https://github.com/textualize/rich
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Things to do with standalone script
Add some cool-looking stuff to your output with rich.
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I made a library for making user terminal input really really pretty!
You might consider taking inspiration from the rich module. In particular, I like how rich supports inline color theming which seems much more cumbersome in your framework, requiring the use of context managers as well as familiarity with how your framework structures color objects. Other than that though, I'm impressed!
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coBib 4.0: a modern UI using Textualize libraries
Today I released coBib 4.0, my console bibliography manager written in Python, which now uses rich and textual to provide a cohesive and modern user experience in both its CLI and TUI.
What are some alternatives?
CQEngine - Ultra-fast SQL-like queries on Java collections
tqdm - :zap: A Fast, Extensible Progress Bar for Python and CLI
Modern Java - A Guide to Java 8 - Modern Java - A Guide to Java 8
colorama - Simple cross-platform colored terminal text in Python
jcurses - Java Curses implementation
python-prompt-toolkit - Library for building powerful interactive command line applications in Python
LightAdmin - [PoC] Pluggable CRUD UI library for Java web applications
textual - The lean application framework for Python. Build sophisticated user interfaces with a simple Python API. Run your apps in the terminal and a web browser.
Jimfs - An in-memory file system for Java 7+
blessed - Blessed is an easy, practical library for making python terminal apps
JBake - Java based open source static site/blog generator for developers & designers.
alive-progress - A new kind of Progress Bar, with real-time throughput, ETA, and very cool animations!