Tantō

Tanto provides an easy way to create GUI-enabled scripts without installing external libraries/bindings.
It's communication protocol is based on JSON.

GTK3	Qt5/6

Supported Types

Name	Type	Description
window	Container	Top level Window
text	Widget	Text label
input	Widget	Single/Multi line text input
number	Widget	Numeric-only input
image	Widget	An image viewer (URLs are supported too)
button	Widget	Clickable button
check	Widget	Checkbox
list	Widget	ListView (with optional model support)
tree	Widget	TreeView (with optional model support)
tabs	Container	Tab View
row	Layout	Aligns items horizontally
column	Layout	Aligns items vertically
grid	Layout	Aligns items in a grid MxN
from	Layout	Creates N-rows of text + widget pairs

Command Line Arguments

Usage:
  tanto stdin [--debug] [--backend=ARG]
  tanto load <filename> [--debug] [--backend=ARG]
  tanto message <title> <text> [(info|question|warning|error)] [--debug] [--backend=ARG]
  tanto confirm <title> <text> [(info|question|warning|error)] [--debug] [--backend=ARG]
  tanto input <title> [text] [value] [--debug] [--backend=ARG]
  tanto password <title> [text] [--debug] [--backend=ARG]
  tanto selectdir [title] [dir] [--debug] [--backend=ARG]
  tanto loadfile [title] [filter] [dir] [--debug] [--backend=ARG]
  tanto savefile [title] [filter] [dir] [--debug] [--backend=ARG]
  tanto list [--debug]
  tanto --version
  tanto --help

Options:
  -h --help        Show this screen
  -v --version     Show version
  -d --debug       Debug mode
  -b --backend=ARG Select backend

A Simple Example

#! /bin/python3

import subprocess
import json

def show_dialog(dialog):
    res = subprocess.run(["tanto", "stdin"], stdout=subprocess.PIPE, input=json.dumps(dialog).encode())
    return json.loads(res.stdout.decode())

DIALOG = {
    "type": "window",
    "width": 500,
    "height": 400,
    "fixed": True,

    "body": {
        "type": "column",

        "items": [
            {"id": "mybutton1", "type": "button", "text": "Click 1"},
            {"id": "mybutton2", "type": "button", "text": "Click 2"},
            {"id": "mybutton3", "type": "button", "text": "Click 3"}
        ]
    }
}

response = show_dialog(DIALOG)
print(f"Event '{response['type']}' received from '{response['from']}'")

If we click mybutton2, Tanto sends a JSON object like this:

{
    "from": "mybutton2",
    "type": "clicked"
}