Add py-httpcore (#19187)

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

@@ -0,0 +1,21 @@
+# 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 PyHttpcore(PythonPackage):
+    """The HTTP Core package provides a minimal low-level HTTP client,
+    which does one thing only. Sending HTTP requests."""
+
+    homepage = "https://github.com/encode/httpcore"
+    url      = "https://pypi.io/packages/source/h/httpcore/httpcore-0.11.0.tar.gz"
+
+    version('0.11.0', sha256='35ffc735d746b83f8fc6d36f82600e56117b9e8adc65d0c0423264b6ebfef7bf')
+
+    depends_on('py-setuptools', type='build')
+    depends_on('py-wheel', type='build')
+    depends_on('py-sniffio@1.0:')
+    depends_on('py-h11@0.8:0.9')