New package: py-xxhash (#24493)

* [py-xxhash] created template

* [py-xxhash] working on dependencies

* [py-xxhash] set version for xxhash

* [py-xxhash] Final cleanup

- added homepage
- added description
- removed fixmes

var/spack/repos/builtin/packages/py-xxhash/package.py

@@ -0,0 +1,23 @@
+# Copyright 2013-2021 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 import *
+
+
+class PyXxhash(PythonPackage):
+    """xxhash is a Python binding for the xxHash library by
+    Yann Collet."""
+
+    homepage = "https://github.com/ifduyue/python-xxhash"
+    pypi     = "xxhash/xxhash-2.0.2.tar.gz"
+
+    version('2.0.2', sha256='b7bead8cf6210eadf9cecf356e17af794f57c0939a3d420a00d87ea652f87b49')
+
+    depends_on('python@2.6:2.999,3.3:', type=('build', 'run'))
+    depends_on('py-setuptools', type='build')
+    depends_on('xxhash@0.8.0')
+
+    def setup_build_environment(self, env):
+        env.set('XXHASH_LINK_SO', '1')