diff -Nru python-future-0.18.2/debian/changelog python-future-0.18.2/debian/changelog
--- python-future-0.18.2/debian/changelog	2023-01-25 00:40:55.000000000 -0800
+++ python-future-0.18.2/debian/changelog	2023-09-15 15:33:03.000000000 -0700
@@ -1,3 +1,9 @@
+python-future (0.18.2-6ubuntu2) mantic; urgency=medium
+
+  * Fix build failure due to failing pytest case (LP: #2036292)
+
+ -- cpete <chris.peterson@canonical.com>  Fri, 15 Sep 2023 15:33:03 -0700
+
 python-future (0.18.2-6ubuntu1) lunar; urgency=medium
 
   * SECURITY UPDATE: ReDOS through Set-Cookie header
diff -Nru python-future-0.18.2/debian/patches/fixed-bytes-unit-test-fail-on-python-3.11.patch python-future-0.18.2/debian/patches/fixed-bytes-unit-test-fail-on-python-3.11.patch
--- python-future-0.18.2/debian/patches/fixed-bytes-unit-test-fail-on-python-3.11.patch	1969-12-31 16:00:00.000000000 -0800
+++ python-future-0.18.2/debian/patches/fixed-bytes-unit-test-fail-on-python-3.11.patch	2023-09-15 15:33:03.000000000 -0700
@@ -0,0 +1,19 @@
+Description: Fixes failing compile null bytes unit test on Python 3.11
+Author: Chris Peterson <chris.peterson@canonical.com>
+Bug-Ubuntu: https://bugs.launchpad.net/ubuntu/+source/python-future/+bug/2036292
+Bug: https://github.com/PythonCharmers/python-future/pull/619
+
+--- a/tests/test_future/test_builtins.py
++++ b/tests/test_future/test_builtins.py
+@@ -524,8 +524,9 @@
+         self.assertRaises(TypeError, compile)
+         self.assertRaises(ValueError, compile, 'print(42)\n', '<string>', 'badmode')
+         self.assertRaises(ValueError, compile, 'print(42)\n', '<string>', 'single', 0xff)
+-        # Raises TypeError in Python < v3.5, ValueError in v3.5:
+-        self.assertRaises((TypeError, ValueError), compile, chr(0), 'f', 'exec')
++        # Raises TypeError in Python < v3.5, ValueError in v3.5-1.10, and a
++        # SyntaxError in 3.11=<:
++        self.assertRaises((TypeError, ValueError, SyntaxError), compile, chr(0), 'f', 'exec')
+         self.assertRaises(TypeError, compile, 'pass', '?', 'exec',
+                           mode='eval', source='0', filename='tmp')
+         compile('print("\xe5")\n', '', 'exec')
diff -Nru python-future-0.18.2/debian/patches/series python-future-0.18.2/debian/patches/series
--- python-future-0.18.2/debian/patches/series	2023-01-25 00:40:55.000000000 -0800
+++ python-future-0.18.2/debian/patches/series	2023-09-15 15:33:03.000000000 -0700
@@ -5,3 +5,4 @@
 #Python3.7-support.patch
 no-dummy-thread.patch
 CVE-2022-40899.patch
+fixed-bytes-unit-test-fail-on-python-3.11.patch