license headers and file

casl.pxd

+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
 cimport libc.stdio
 
 cdef extern from "asl.h":

pyasl.pyx

+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
 cimport casl, cpython, libc.stdio
 from libc.stdlib cimport malloc, calloc, free
 import numpy as np

setup.py

 #! /usr/bin/env python
 # -*- coding: utf-8 -*-
 
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
 from distutils.core import setup
 from distutils.extension import Extension
 import Cython.Distutils, Cython.Compiler.Options