dependency for py-torchmeta (#24595)

Co-authored-by: Sid Pendelberry <sid@rit.edu>

var/spack/repos/builtin/packages/py-ordered-set/package.py

@@ -0,0 +1,20 @@
+# Copyright 2013-2021 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 PyOrderedSet(PythonPackage):
+    """An OrderedSet is a mutable data structure that is a hybrid of a list and
+    a set. It remembers the order of its entries, and every entry has an index
+    number that can be looked up."""
+
+    homepage = "https://github.com/LuminosoInsight/ordered-set"
+    pypi     = "ordered-set/ordered-set-4.0.2.tar.gz"
+
+    version('4.0.2', sha256='ba93b2df055bca202116ec44b9bead3df33ea63a7d5827ff8e16738b97f33a95')
+
+    depends_on('python@3.5:',           type=('build', 'run'))
+    depends_on('py-setuptools',         type='build')