py-apptools: add new package (#15747)

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

+# Copyright 2013-2020 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)
+
+
+class PyApptools(PythonPackage):
+    """The apptools project includes a set of packages that Enthought has found
+    useful in creating a number of applications. They implement functionality
+    that is commonly needed by many applications."""
+
+    homepage = "https://docs.enthought.com/apptools"
+    url      = "https://pypi.io/packages/source/a/apptools/apptools-4.5.0.tar.gz"
+
+    version('4.5.0', sha256='260ae0e2a86cb2df2fede631ab6ac8ece694a58a1def78cd015c890c57140582')
+
+    depends_on('py-setuptools', type='build')
+    depends_on('py-configobj', type=('build', 'run'))
+    depends_on('py-six', type=('build', 'run'))
+    depends_on('py-traitsui', type=('build', 'run'))