Add py-google-cloud-storage package (#12370)

var/spack/repos/builtin/packages/py-google-cloud-storage/package.py

@@ -0,0 +1,21 @@
+# Copyright 2013-2019 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 PyGoogleCloudStorage(PythonPackage):
+    """Google Cloud Storage API client library."""
+
+    homepage = "https://github.com/GoogleCloudPlatform/google-cloud-python"
+    url      = "https://pypi.io/packages/source/g/google-cloud-storage/google-cloud-storage-1.18.0.tar.gz"
+
+    version('1.18.0', sha256='9fb3dc68948f4c893c2b16f5a3db3daea2d2f3b8e9d5c2d505fe1523758009b6')
+
+    depends_on('python@2.7:2.8,3.4:', type=('build', 'run'))
+    depends_on('py-setuptools', type='build')
+    depends_on('py-google-auth@1.2.0:', type=('build', 'run'))
+    depends_on('py-google-cloud-core@1.0:1.999', type=('build', 'run'))
+    depends_on('py-google-resumable-media@0.3.1:', type=('build', 'run'))