@@ -0,0 +1,736 @@
+# Copyright 2013-2019 Lawrence Livermore National Security, LLC and other%0A# Spack Project Developers. See the top-level COPYRIGHT file for details.%0A#%0A# SPDX-License-Identifier: (Apache-2.0 OR MIT)%0A%0Afrom spack import *%0A%0A%0Aclass PyMypyExtensions(PythonPackage):%0A    %22%22%22Experimental type system extensions for programs checked with the%0A    mypy typechecker.%22%22%22%0A%0A    homepage = %22https://github.com/python/mypy_extensions%22%0A    url      = %22https://pypi.io/packages/source/m/mypy-extensions/mypy_extensions-0.4.3.tar.gz%22%0A%0A    version('0.4.3', sha256='2d82818f5bb3e369420cb3c4060a7970edba416647068eb4c5343488a6c604a8')%0A%0A    depends_on('py-setuptools', type='build')%0A    depends_on('py-typing@3.5.3:', when='%5Epython@:3.4', type=('build', 'run'))%0A

Add py-mypy-extensions package (#13283)