py-pyke: new package (#11894)

* py-pyke: automatic python program generator

* py-pyke: expand the package docstring

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

@@ -0,0 +1,20 @@
+# 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 PyPyke(PythonPackage):
+    """Pyke introduces a form of Logic Programming (inspired by Prolog)
+    to the Python community by providing a knowledge-based inference
+    engine (expert system) written in 100% Python.
+    """
+
+    homepage = "http://sourceforge.net/projects/pyke"
+    url      = "https://downloads.sourceforge.net/pyke/pyke3-1.1.1.zip"
+
+    version('1.1.1', sha256='b877b390e70a2eacc01d97c3a992fde947276afc2798ca3ac6c6f74c796cb6dc')
+
+    depends_on('python@3:')