add package py-boltons (#3279)

* add package py-boltons

* added description

* fixed non-utf8 characters

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

@@ -0,0 +1,41 @@
+##############################################################################
+# Copyright (c) 2013-2016, Lawrence Livermore National Security, LLC.
+# Produced at the Lawrence Livermore National Laboratory.
+#
+# This file is part of Spack.
+# Created by Todd Gamblin, tgamblin@llnl.gov, All rights reserved.
+# LLNL-CODE-647188
+#
+# For details, see https://github.com/llnl/spack
+# Please also see the LICENSE file for our notice and the LGPL.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License (as
+# published by the Free Software Foundation) version 2.1, February 1999.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the IMPLIED WARRANTY OF
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the terms and
+# conditions of the GNU Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+##############################################################################
+from spack import *
+
+
+class PyBoltons(PythonPackage):
+    """When they're not builtins, they're boltons.
+
+    Functionality that should be in the standard library. Like builtins,
+    but Boltons.
+
+    Otherwise known as, "everyone's util.py," but cleaned up and tested.
+    """
+    homepage = "https://boltons.readthedocs.io/"
+    url = "https://pypi.io/packages/source/b/boltons/boltons-16.5.1.tar.gz"
+
+    version('16.5.1', '014b10f240fa509fc333ebff4978111b')
+
+    depends_on('py-setuptools', type='build')