new package py-cfgv (#13592)

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

@@ -0,0 +1,19 @@
+# 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 PyCfgv(PythonPackage):
+    """Validate configuration and produce human readable error messages."""
+
+    homepage = "https://github.com/asottile/cfgv/"
+    url      = "https://pypi.io/packages/source/c/cfgv/cfgv-2.0.1.tar.gz"
+
+    version('2.0.1', sha256='edb387943b665bf9c434f717bf630fa78aecd53d5900d2e05da6ad6048553144')
+
+    depends_on('python@2.7:2.8,3.4:', type=('build', 'run'))
+    depends_on('py-setuptools', type='build')
+    depends_on('py-six',        type=('build', 'run'))