new package: py-nodeenv (#13594)

* new package: py-nodeenv

* drop python version requirements, not enforced by setup.py

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

@@ -0,0 +1,17 @@
+# 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 PyNodeenv(PythonPackage):
+    """Node.js virtual environment"""
+
+    homepage = "https://github.com/ekalinin/nodeenv"
+    url      = "https://pypi.io/packages/source/n/nodeenv/nodeenv-1.3.3.tar.gz"
+
+    version('1.3.3', sha256='ad8259494cf1c9034539f6cced78a1da4840a4b157e23640bc4a0c0546b0cb7a')
+
+    depends_on('py-setuptools', type='build')