Add (C)/License information.

LICENSE

@@ -17,3 +17,22 @@ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 SOFTWARE.
+
+Some code in testtools/run.py taken from Python's unittest module:
+Copyright (c) 1999-2003 Steve Purcell
+Copyright (c) 2003-2010 Python Software Foundation
+
+This module is free software, and you may redistribute it and/or modify
+it under the same terms as Python itself, so long as this copyright message
+and disclaimer are retained in their original form.
+
+IN NO EVENT SHALL THE AUTHOR BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
+SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OF
+THIS CODE, EVEN IF THE AUTHOR HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
+DAMAGE.
+
+THE AUTHOR SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+PARTICULAR PURPOSE.  THE CODE PROVIDED HEREUNDER IS ON AN "AS IS" BASIS,
+AND THERE IS NO OBLIGATION WHATSOEVER TO PROVIDE MAINTENANCE,
+SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.

README

@@ -14,6 +14,10 @@ Licensing
 This project is distributed under the MIT license and copyright is owned by
 Jonathan M. Lange. See LICENSE for details.
 
+Some code in testtools/run.py is taken from Python's unittest module, and
+is copyright Steve Purcell and the Python Software Foundation, it is
+distributed under the same license as Python, see LICENSE for details.
+
 
 Dependencies
 ------------