Add a pyproject.toml (#590)

Co-authored-by: Thomas Bendall <[email protected]>

pyproject.toml

@@ -0,0 +1,40 @@
+[build-system]
+requires = ["setuptools"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "gusto"
+version = "1.0"
+dependencies = [
+  "netCDF4",
+  "pandas",
+  "qmat",
+]
+authors = [
+  {name = "The Gusto Team"},
+]
+description = "Toolkit for compatible finite element dynamical cores"
+readme = "README.md"
+license = {file = "LICENSE"}
+classifiers = [
+  "Programming Language :: Python",
+]
+
+[project.urls]
+Homepage = "http://www.firedrakeproject.org/gusto/"
+Repository = "https://github.com/firedrakeproject/gusto.git"
+
+[tool.setuptools]
+packages = [
+  "gusto",
+  "gusto.core",
+  "gusto.diagnostics",
+  "gusto.equations",
+  "gusto.initialisation",
+  "gusto.physics",
+  "gusto.recovery",
+  "gusto.solvers",
+  "gusto.spatial_methods",
+  "gusto.time_discretisation",
+  "gusto.timestepping",
+]