sphinx copybutton: new package at v0.2.12 (#17632)

var/spack/repos/builtin/packages/py-sphinx-copybutton/package.py

+# Copyright 2013-2020 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 PySphinxCopybutton(PythonPackage):
+    """A small sphinx extension to add a "copy" button to code blocks."""
+
+    homepage = "https://github.com/choldgraf/sphinx-copybutton"
+    url      = "https://files.pythonhosted.org/packages/b7/74/da355d8a909a7934b5f1711fce6f056e0c398094918dec3a23703662a0fe/sphinx-copybutton-0.2.12.tar.gz"
+
+    version('0.2.12', sha256='9492883786984b6179c92c07ab0410237b26efa826adfa792acfd17b91a63e5c')
+
+    depends_on('py-setuptools', type='build')
+    depends_on('py-sphinx@1.8:')