new package: py-simplekml (#12541)

* new package: py-simplekml

* add python dependency version info

var/spack/repos/builtin/packages/py-simplekml/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 PySimplekml(PythonPackage):
+    """simplekml is a python package which enables you to generate KML with as
+    little effort as possible.
+    """
+
+    homepage = "https://readthedocs.org/projects/simplekml/"
+    url      = "https://pypi.io/packages/source/s/simplekml/simplekml-1.3.1.tar.gz"
+
+    version('1.3.1', sha256='30c121368ce1d73405721730bf766721e580cae6fbb7424884c734c89ec62ad7')
+
+    depends_on('python@2.6:')