issue2551350 - Python changes for 3.12 with roundup 2.3.0 cgitb.py

Fix change in pydoc.html.header() signature. It dropped foreground and
background color arguments in 3.11 and newer.

Also enable test code for the html function.

CHANGES.txt

@@ -142,6 +142,9 @@ Fixed:
   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:
 

roundup/cgi/cgitb.py

@@ -127,10 +127,18 @@ def html(context=5, i18n=None):
     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 '

test/test_misc.py

@@ -223,7 +223,7 @@ def test_pt_html(self):
         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.