New package: py-spectral (#28481)

* simple build of spectral

* fixed trailing whitespace for style

* [py-spectral] updated copyright

* [py-spectral] runtime imports py-numpy

Co-authored-by: Sid Pendelberry <sid@rit.edu>

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

@@ -0,0 +1,22 @@
+# Copyright 2013-2022 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 PySpectral(PythonPackage):
+    """Spectral Python (SPy) is a pure Python module for processing
+    hyperspectral image data (imaging spectroscopy data). It has functions for
+    reading, displaying, manipulating, and classifying hyperspectral imagery.
+    SPy is Free, Open Source Software (FOSS) distributed under the MIT
+    License."""
+
+    homepage = "http://www.spectralpython.net/"
+    pypi     = "spectral/spectral-0.22.4.tar.gz"
+
+    version('0.22.4', sha256='b208ffd1042e32fd2276a35e098e3df26a5f6ff1310b829e97d222c66645a9af')
+
+    depends_on('py-setuptools', type='build')
+    depends_on('py-numpy', type=('build', 'run'))