This program is free software; you can redistribute it and/or modify

it under the terms of the BSD 2-Clause License as shipped with pysnmp.

CHANGES.txt

@@ -68,6 +68,9 @@ Revision 4.2.6rc0
   unique PDU request-id's in both outgoing and incoming confirmed 
   and response PDU types. Duplicate request-id's in unrelated PDUs may
   cause cache errors otherwise.
+- Fix to licensing terms of multiple twisted backend modules to make
+  the whole pysnmp package licensed under BSD 2-Clause license. This
+  change has been explicitly permitted by the original modules authors.
 
 Revision 4.2.5
 --------------

pysnmp/carrier/twisted/base.py

@@ -3,8 +3,7 @@
 #  Author: Filippo Giunchedi <filippo@truelite.it>
 #
 #  This program is free software; you can redistribute it and/or modify
-#  it under the terms of the GNU General Public License Version 2
-#  as published by the Free Software Foundation
+#  it under the terms of the BSD 2-Clause License as shipped with pysnmp.
 #
 #  Description: twisted DatagramProtocol UDP transport
 #

pysnmp/carrier/twisted/dispatch.py

@@ -3,10 +3,9 @@
 #  Author: Filippo Giunchedi <filippo@truelite.it>
 #
 #  This program is free software; you can redistribute it and/or modify
-#  it under the terms of the GNU General Public License Version 2
-#  as published by the Free Software Foundation
+#  it under the terms of the BSD 2-Clause License as shipped with pysnmp.
 #
-# Description: Transport dispatcher based on twisted.internet.reactor
+#  Description: Transport dispatcher based on twisted.internet.reactor
 #
 import sys, time, traceback
 from twisted.internet import reactor, task