py-pint-xarray: new package (spack#36106)

* py-pint-xarray: new package

* py-pint-xarray: review remarks

var/spack/repos/builtin/packages/py-pint-xarray/package.py

@@ -0,0 +1,25 @@
+# Copyright 2013-2023 Lawrence Livermore National Security, LLC and other
+# Spack Project Developers. See the top-level COPYRIGHT file for details.
+#
+# SPDX-License-Identifier: (Apache-2.0 OR MIT)
+
+from spack.package import *
+
+
+class PyPintXarray(PythonPackage):
+    """A convenience wrapper for using pint with xarray"""
+
+    homepage = "https://github.com/xarray-contrib/pint-xarray"
+    pypi = "pint-xarray/pint-xarray-0.2.1.tar.gz"
+
+    version("0.3", sha256="3545dfa78bee3f98eba29b8bd17500e3b5cb7c7b03a2c2781c4d4d59b6a82841")
+    version("0.2.1", sha256="1ee6bf74ee7b52b946f226a96469276fa4f5c68f7381c1b2aae66852562cb275")
+
+    depends_on("py-setuptools@42:", type="build")
+    depends_on("py-setuptools-scm@3.4:+toml", type="build")
+
+    depends_on("python@3.8:", when="@0.3:", type=("build", "run"))
+    depends_on("py-numpy@1.17:", type=("build", "run"))
+    depends_on("py-xarray@0.16.1:", type=("build", "run"))
+    depends_on("py-pint@0.16:", type=("build", "run"))
+    depends_on("py-importlib-metadata", when="@0.2.1 ^python@:3.7", type=("build", "run"))