Add py-rfc3986 (#19176)

var/spack/repos/builtin/packages/py-rfc3986/package.py

@@ -0,0 +1,23 @@
+# 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 PyRfc3986(PythonPackage):
+    """A Python implementation of RFC 3986 including
+       validation and authority parsing."""
+
+    homepage = "http://rfc3986.readthedocs.io/"
+    url      = "https://pypi.io/packages/source/r/rfc3986/rfc3986-1.4.0.tar.gz"
+
+    version('1.4.0', sha256='112398da31a3344dc25dbf477d8df6cb34f9278a94fee2625d89e4514be8bb9d')
+
+    depends_on('py-setuptools', type='build')
+    depends_on('py-wheel', type='build')
+
+    variant('idna2008', default=False, description='Enable idna2008 Functionality')
+
+    depends_on('py-idna', when='+idna2008')