@@ 1,3 1,18 @@ 
+#  abcd - an example Python package with a Python/C extension and
+#  Cython extension using a common shared library.
+#
+# Written in 2021 and 2022 by Andrew Dalke <dalke@dalkescientific.com>.
+# 
+# To the extent possible under law, the author has dedicated all
+# copyright and related and neighboring rights to this software to the
+# public domain worldwide. This software is distributed without any
+# warranty.
+# 
+# You should have received a copy of the CC0 Public Domain Dedication
+# along with this software. If not, see
+# <http://creativecommons.org/publicdomain/zero/1.0/>.
+
+
 import sys
 import pathlib
 from setuptools import setup, Extension