Added py-pywavelets package (#4496)

* Added py-pywt  package

* passes flake8 test

* renamed py-pywt to py-pywavelets

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

@@ -0,0 +1,42 @@
+##############################################################################
+# 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 PyPywavelets(PythonPackage):
+    """PyWavelets is a free Open Source library for wavelet transforms
+       in Python"""
+
+    homepage = "https://github.com/PyWavelets"
+    url = "https://pypi.io/packages/source/P/PyWavelets/PyWavelets-0.5.2.tar.gz"
+
+    version('0.5.2', 'aedda732f064cf9395f03d37f1003d1a')
+
+    import_modules = ['pywt']
+
+    depends_on('py-setuptools', type='build')
+    depends_on('py-cython', type='build')
+    depends_on('py-numpy@1.9.1:',  type=('build', 'run'))