New package: py-tblib (#11425)

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

+# 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 PyTblib(PythonPackage):
+    """Traceback fiddling library. Allows you to pickle tracebacks."""
+
+    homepage = "https://github.com/ionelmc/python-tblib"
+    url      = "https://files.pythonhosted.org/packages/source/t/tblib/tblib-1.4.0.tar.gz"
+
+    version('1.4.0', sha256='bd1ad564564a158ff62c290687f3db446038f9ac11a0bf6892712e3601af3bcd')
+
+    depends_on('py-setuptools', type='build')