new package: py-colorpy (#12266)

* new package: py-colorpy

* remove incorrect dependency

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

@@ -0,0 +1,23 @@
+# 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 PyColorpy(PythonPackage):
+    """ColorPy is a Python package to convert physical descriptions of light -
+    spectra of light intensity vs. wavelength - into RGB colors that can be
+    drawn on a computer screen. It provides a nice set of attractive plots
+    that you can make of such spectra, and some other color related
+    functions as well.
+    """
+
+    homepage = "http://markkness.net/colorpy/ColorPy.html"
+    url      = "https://pypi.org/packages/source/c/colorpy/colorpy-0.1.1.tar.gz"
+
+    version('0.1.1', sha256='e400a7e879adc83c6098dde13cdd093723f3936778c245b1caf88f5f1411170d')
+
+    depends_on('py-numpy', type='run')
+    depends_on('py-matplotlib', type='run')