Switch to pyproject.toml; bump version to 1.0.1

LICENSE

@@ -0,0 +1,19 @@
+Copyright 2023 William Dye
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

README.md

@@ -5,33 +5,23 @@ using a variety of different algorithms.
 
 ## Installation
 
-The package is not currently available on PyPI or any other Python package repository. The easiest
-way to install it is to clone the GitHub repository and install it from source.
+The easiest way to install the package is to download it from [PyPI](https://pypi.org) using `pip`.
+Note that `sudoku` depends on [Python](https://www.python.org/downloads/) 3.7 or newer; please
+ensure that you have a semi-recent version of Python installed before proceeding.
 
-### Prerequisites
-
-* [Python 3.7](https://www.python.org/downloads/release/python-370/)
-* [Git](https://git-scm.com)
-* [Make](https://www.gnu.org/software/make/)
-* [virtualenvwrapper](https://virtualenvwrapper.readthedocs.io/en/latest/)
-
-### Installation Instructions
-
-Run the following commands in a shell (a UNIX-like environment is assumed):
+Run the following command in a shell (a UNIX-like environment is assumed):
 
 ```
-$ git clone [email protected]:will2dye4/sudoku.git
-$ cd sudoku
-$ mkvirtualenv -p`which python3.7` sudoku
-(sudoku) $ make install
+$ pip install sudoku
 ```
 
-It is not strictly necessary to create a virtual environment for the sudoku package. However, the
-package makes use of Python 3.7 features, so if you choose not to use a virtual environment, you
-assume responsibility for installing the package in an appropriate Python 3.7 environment.
+The package does not have any dependencies besides Python itself. If you wish to sandbox your
+installation inside a virtual environment, you may choose to use
+[virtualenvwrapper](https://virtualenvwrapper.readthedocs.io/en/latest/) or a similar
+utility to do so.
 
-When successfully installed, a program called `sudoku` will be placed on your `PATH`. See the Usage
-section below for details about how to use this program.
+When successfully installed, a program called `sudoku` will be placed on your `PATH`. See the
+Usage section below for details about how to use this program.
 
 ## Usage
 
@@ -275,4 +265,4 @@ this reason, **GUI mode is not available when using the DLX algorithm**.
 
 A sample of the program running in GUI mode is shown below.
 
-![GUI Mode](./images/gui_mode.png)
+![GUI Mode](https://raw.githubusercontent.com/will2dye4/sudoku/master/images/gui_mode.png)

pyproject.toml

@@ -0,0 +1,31 @@
+[build-system]
+requires = ['setuptools']
+build-backend = 'setuptools.build_meta'
+
+[project]
+name = 'sudoku'
+version = '1.0.1'
+description = 'Solve sudoku puzzles using various algorithms'
+license = {file = 'LICENSE'}
+readme = 'README.md'
+authors = [
+    {name = 'William Dye'},
+]
+keywords = ['dancing links', 'dlx', 'sudoku', 'sudoku solver']
+requires-python = '>=3.7'
+
+[project.optional-dependencies]
+test = [
+    'pytest ~= 3.7.2',
+]
+
+[project.scripts]
+ku = 'sudoku.__main__:ku'
+sudoku = 'sudoku.__main__:main'
+
+[project.urls]
+Repository = 'https://github.com/will2dye4/sudoku.git'
+
+[tool.setuptools.packages.find]
+include = ['sudoku*']
+namespaces = false