diff --git a/packages/py-cerebstats/package.py b/packages/py-cerebstats/package.py
new file mode 100644
index 0000000000000000000000000000000000000000..c72ec4879021ef4e451f6e85bf368a546b8e1241
--- /dev/null
+++ b/packages/py-cerebstats/package.py
@@ -0,0 +1,26 @@
+# 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 PyCerebstats(PythonPackage):
+    """CerebStats is the statistical library for CerebUnit.
+    It is one of the four components for validating cerebellum models:
+    CerebModels and CerebData do not require installation while CerebUnit and CerebStats require installation."""
+
+    homepage = "https://cerebstats.readthedocs.io"
+    pypi     = "cerebstats/cerebstats-0.0.3.tar.gz"
+    git = "https://github.com/cerebunit/cerebstats.git"
+    
+    maintainers = ['lungsi', 'apdavison'] # github usernames
+
+    version('0.0.3', sha256='0270ac7d37706d067e5e72de80f6dbd23309ec02a71ad4443f0f457790a9aa8c')
+
+    depends_on('py-numpy', type=('build', 'run'))
+    depends_on('py-scipy', type=('build', 'run'))
+    depends_on('py-quantities', type='build', 'run')
+    depends_on('py-sciunit', type=('build', 'run'))
+    
diff --git a/packages/py-cerebunit/package.py b/packages/py-cerebunit/package.py
new file mode 100644
index 0000000000000000000000000000000000000000..f0c9e6499c5c8a688fccf1eaa2e06b2a6176a8e4
--- /dev/null
+++ b/packages/py-cerebunit/package.py
@@ -0,0 +1,31 @@
+# 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 PyCerebunit(PythonPackage):
+    """CerebUnit is a component for validating cerebellum models that contains the validation tests.
+    It is one of the four components for validating cerebellum models:
+    CerebModels and CerebData do not require installation while CerebUnit and CerebStats require installation."""
+
+    homepage = "https://cerebunit.readthedocs.io"
+    pypi     = "cerebunit/cerebunit-0.0.1.tar.gz"
+    git = "https://github.com/cerebunit/cerebunit.git"
+
+    maintainers = ['lungsi', 'apdavison'] # github usernames
+
+    version('0.0.1', sha256='f5b3811c5da2e8416a30a67497b90c87cba176493662e73f2191f1375a6d7bfe')
+
+    depends_on('py-cerebstats', type=('build', 'run'))
+    depends_on('py-numpy', type=('build', 'run'))
+    depends_on('py-scipy', type=('build', 'run'))
+    depends_on('py-quantities', type='build', 'run')
+    depends_on('py-sciunit', type=('build', 'run'))
+    depends_on('py-pynwb@1.0.2', type=('build', 'run'))
+    depends_on('py-hdmf@1.0.3', type=('build', 'run'))
+    depends_on('py-h5py', type=('build', 'run'))
+    depends_on('py-pandas', type=('build', 'run'))
+