From 5a77d1dc082d0f2cedc7320616f2d96f61a3ed9c Mon Sep 17 00:00:00 2001
From: jonathan vanasco <jonathan@2xlp.com>
Date: Tue, 5 Nov 2019 17:04:11 -0500
Subject: invoke `deprecated()`

---
 src/pyramid/session.py | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/pyramid/session.py b/src/pyramid/session.py
index ededdaab7..10e1ea313 100644
--- a/src/pyramid/session.py
+++ b/src/pyramid/session.py
@@ -82,6 +82,14 @@ class PickleSerializer(object):
         return pickle.dumps(appstruct, self.protocol)
 
 
+deprecated(
+    'PickleSerializer',
+    'pyramid.session.PickleSerializer is deprecated as of Pyramid 2.0 for '
+    'security concerns. Use pyramid.session.JSONSerializer or reference the '
+    'narrative documentation for information on building a migration tool.',
+)
+
+
 JSONSerializer = JSONSerializer  # api
 
 
-- 
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