--- a/CHANGES.txt	Tue May 14 20:50:25 2024 -0400
+++ b/CHANGES.txt	Tue May 14 21:27:28 2024 -0400
@@ -142,6 +142,9 @@
   option is off when the setting is missing from
   detectors/config.ini. Other templates do not implement this option.
   (John Rouillard)
+- issue2551350 - Python changes for 3.12 with roundup 2.3.0. Fixes for
+  cgitb.py crash due to pydoc.html.header() signature change. (Patch
+  by Andrew (kragacles), applied John Rouillard)
 
 Features:
 

--- a/roundup/cgi/cgitb.py	Tue May 14 20:50:25 2024 -0400
+++ b/roundup/cgi/cgitb.py	Tue May 14 21:27:28 2024 -0400
@@ -127,10 +127,18 @@
     if type(etype) is type:
         etype = etype.__name__
     pyver = 'Python ' + sys.version.split()[0] + '<br>' + sys.executable
-    head = pydoc.html.heading(
-        _('<font size=+1><strong>%(exc_type)s</strong>: %(exc_value)s</font>')
-        % {'exc_type': etype, 'exc_value': evalue},
-        '#ffffff', '#777777', pyver)
+
+    if sys.version_info[0:2] >= (3,11):
+        head = pydoc.html.heading(
+            _('<font size=+1><strong>%(exc_type)s</strong>: '
+              '%(exc_value)s</font>')
+            % {'exc_type': etype, 'exc_value': evalue}, pyver)
+    else:
+        head = pydoc.html.heading(
+            _('<font size=+1><strong>%(exc_type)s</strong>: '
+              '%(exc_value)s</font>')
+            % {'exc_type': etype, 'exc_value': evalue},
+            '#ffffff', '#777777', pyver)
 
     head = head + (_('<p>A problem occurred while running a Python script. '
                      'Here is the sequence of function calls leading up to '

--- a/test/test_misc.py	Tue May 14 20:50:25 2024 -0400
+++ b/test/test_misc.py	Tue May 14 21:27:28 2024 -0400
@@ -223,7 +223,7 @@
         else:
             self.assertEqual(expected2, p)
 
-    def notest_html(self):
+    def test_html(self):
         """ templating error """
         # enabiling this will cause the test to fail as the variable
         # is included in the live output but not in expected.