Standardize packaging system

[derekbarbosa]

Hi there,

Not sure if this is stale or not (given the two open issues that haven't had any resolution) but I came across project looking for some sort of static simple HTML generation from some scripts I have been using for a while now.

Anyway, I noticed that this project still uses the setup.py method of installation. In fact, doing a pip install yattag from within my venv prompts the following message:

DEPRECATION: yattag is being installed using the legacy 'setup.py install' method, 
because it does not have a 'pyproject.toml' and the 'wheel' package is not installed. 

Pip 23.1 will enforce this behaviour change. 

A possible replacement is to enable the '--use-pep517' option. 

Discussion can be found at https://github.com/pypa/pip/issues/8559

While setup.py is not fully deprecated for the time being (the installation still ran successfully) , I propose that converting the current setup.py project structure to include a pyproject.toml (as demonstrated by this guide).

This will also allow for installation locally using pip install .

A quick-and-dirty example could be as follows (please validate prior to copy-pasting using the linked docs):

[build-system] # backend build system
requires = ["setuptools"] 
build-backend = "setuptools.build_meta"

[project] # metadata
name = "yattag"
authors = [
    {name = "Benjamin Le Forestier", email = "[email protected]"},
]
license = {text = "LGPL-2.1"}
version = "1.15.2"
readme = "README.rst"
requires-python = ">=3.5"
dependencies = [
    "typing",
]
urls = { Project-URL = Website, https://www.yattag.org }
description  = "Generate HTML or XML in a pythonic way. Pure python alternative to web template engines & can fill HTML forms with default values and error messages."
keywords = [
    "html", 
    "template", 
    "templating", 
    "xml", 
    "document", 
    "form", 
    "rendering",
]

[project.scripts] # the entry point

If you have any other alternatives for a simple HTML generator such as this (if the project is deemed stale and no longer in development) please let me know and close the issue.