Add some "used with permission" mentions where external resources are referenced.
Permission was validated prior to adding these markings.
diff --git a/Lib/datetime.py b/Lib/datetime.py
index b9719cb..2f94218 100644
--- a/Lib/datetime.py
+++ b/Lib/datetime.py
@@ -896,6 +896,7 @@
ISO calendar algorithm taken from
http://www.phys.uu.nl/~vgent/calendar/isocalendar.htm
+ (used with permission)
"""
year = self._year
week1monday = _isoweek1monday(year)
diff --git a/Lib/encodings/hp_roman8.py b/Lib/encodings/hp_roman8.py
index 2334208..58de103 100644
--- a/Lib/encodings/hp_roman8.py
+++ b/Lib/encodings/hp_roman8.py
@@ -5,6 +5,8 @@
Original source: LaserJet IIP Printer User's Manual HP part no
33471-90901, Hewlet-Packard, June 1989.
+ (Used with permission)
+
"""#"
import codecs
diff --git a/Lib/unittest/__init__.py b/Lib/unittest/__init__.py
index f6d7ae2..7f61a80 100644
--- a/Lib/unittest/__init__.py
+++ b/Lib/unittest/__init__.py
@@ -1,6 +1,6 @@
"""
Python unit testing framework, based on Erich Gamma's JUnit and Kent Beck's
-Smalltalk testing framework.
+Smalltalk testing framework (used with permission).
This module contains the core framework classes that form the basis of
specific test cases and suites (TestCase, TestSuite etc.), and also a