move to pyproject.toml

.gitignore

@@ -1,3 +1,4 @@
+cmocean/_version.py
 cmocean/rgb/drafts/
 dist
 *.pyc

pyproject.toml

@@ -0,0 +1,61 @@
+[build-system]
+build-backend = "setuptools.build_meta"
+requires = [
+  "setuptools>=42",
+  "setuptools_scm",
+  "wheel",
+]
+
+[project]
+name = "cmocean"
+description = "Colormaps for Oceanography"
+readme = "README.md"
+license = {file = "LICENSE.txt"}
+maintainers = [
+    {name = "Kristen Thyng", email = "kthyng@gmail.com"},
+]
+requires-python = ">=3.8"
+classifiers = [
+  "Programming Language :: Python :: 3 :: Only",
+  "Programming Language :: Python :: 3.8",
+  "Programming Language :: Python :: 3.9",
+  "Programming Language :: Python :: 3.10",
+  "Programming Language :: Python :: 3.11",
+  "Programming Language :: Python :: 3.12",
+]
+dynamic = [
+  "dependencies",
+  "version",
+]
+[project.optional-dependencies]
+tests = [
+  "pytest",
+]
+plots = [
+  "colorspacious",
+  "viscm",
+]
+
+[project.urls]
+documentation = "https://matplotlib.org/cmocean/"
+homepage = "https://github.com/matplotlib/cmocean"
+repository = "https://github.com/matplotlib/cmocean"
+
+[tool.setuptools]
+packages = ["cmocean"]
+include-package-data = true
+
+[tool.setuptools.dynamic]
+dependencies = {file = ["requirements.txt"]}
+
+[tool.setuptools_scm]
+write_to = "cmocean/_version.py"
+write_to_template = "__version__ = '{version}'"
+tag_regex = "^(?P<prefix>v)?(?P<version>[^\\+]+)(?P<suffix>.*)?$"
+
+[tool.pytest.ini_options]
+filterwarnings = [
+    "error:::cmocean.*",
+    "ignore::UserWarning",
+    "ignore::RuntimeWarning",
+]