Add py-google-auth package (#12256)

var/spack/repos/tutorial/packages/py-google-auth/package.py

@@ -0,0 +1,23 @@
+# 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 PyGoogleAuth(PythonPackage):
+    """This library simplifies using Google’s various server-to-server
+    authentication mechanisms to access Google APIs."""
+
+    homepage = "https://github.com/GoogleCloudPlatform/google-auth-library-python"
+    url      = "https://pypi.io/packages/source/g/google-auth/google-auth-1.6.3.tar.gz"
+
+    version('1.6.3', sha256='0f7c6a64927d34c1a474da92cfc59e552a5d3b940d3266606c6a28b72888b9e4')
+
+    depends_on('python@2.7:2.8,3.4:', type=('build', 'run'))
+    depends_on('py-setuptools', type='build')
+    depends_on('py-pyasn1-modules@0.2.1:', type=('build', 'run'))
+    depends_on('py-rsa@3.1.4:', type=('build', 'run'))
+    depends_on('py-six@1.9.0:', type=('build', 'run'))
+    depends_on('py-cachetools@2.0.0:', type=('build', 'run'))