Pickle is not working for scapy.compat.NamedTuple on python < 3.7

[polybassa]

This issue is already discussed in #3113.

Here is a patch to add a suitable test-case, since I'll close #3113.
#3113 is not a ready PR and I have no idea how to modify namedtuple, to fix this issue.

cat 0001-Add-pickle-test-for-PacketList.patch

From 27026f286c76dadf29aa2ae108d4edc7977895c0 Mon Sep 17 00:00:00 2001
From: Nils Weiss <[email protected]>
Date: Wed, 24 Feb 2021 10:15:50 +0100
Subject: [PATCH] Add pickle test for PacketList

---
 test/regression.uts | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/test/regression.uts b/test/regression.uts
index 22326e00..6fe86608 100644
--- a/test/regression.uts
+++ b/test/regression.uts
@@ -4224,6 +4224,22 @@ srl, rl = pl.sr(lookahead=None)
 assert len(srl) == 1
 assert len(rl) == 7
 
+= pickle test
+import pickle
+import io
+
+srl, rl = PacketList([Raw(b"1"), Raw(b"1"), Raw(b"2"), Raw(b"3"), Raw(b"4"), Raw(b"3"), Raw(b"1"), Raw(b"1"), Raw(b"4")]).sr()
+assert len(srl) == 4
+
+f = io.BytesIO()
+
+pickle.dump(srl, f)
+
+unp = pickle.loads(f.getvalue())
+
+assert len(unp) == len(srl)
+assert all(bytes(a[0]) == bytes(b[0]) for a, b in zip(unp, srl))
+
 = plot()
 
 import mock
-- 
2.30.0

[gpotter2]

fixed in #3113