Label classes and exceptions explicitly in the documentation (for their

*desc environments).

Doc/perl/python.perl

@@ -882,7 +882,7 @@ sub do_env_excdesc{
     local($_) = @_;
     my $excname = next_argument();
     my $idx = make_str_index_entry("<tt class='exception'>$excname</tt>");
-    return "<dl><dt><b>$idx</b>\n<dd>" . $_ . '</dl>'
+    return "<dl><dt><b>exception $idx</b>\n<dd>" . $_ . '</dl>'
 }
 
 sub do_env_fulllineitems{ return do_env_itemize(@_); }
@@ -895,7 +895,9 @@ sub handle_classlike_descriptor{
     $idx = make_str_index_entry(
 		"<tt class='$what'>$THIS_CLASS</tt> ($what in $THIS_MODULE)" );
     $idx =~ s/ \(.*\)//;
-    return "<dl><dt><b>$idx</b> (<var>$arg_list</var>)\n<dd>" . $_ . '</dl>';
+    return ("<dl><dt><b>$what $idx</b> (<var>$arg_list</var>)\n<dd>"
+            . $_
+            . '</dl>');
 }
 
 sub do_env_classdesc{

Doc/texinputs/python.sty

@@ -598,7 +598,7 @@
   % Using \renewcommand doesn't work for this, for unknown reasons:
   \global\def\py@thisclass{#1}
   \begin{fulllineitems}
-    \item[\code{\bfcode{#1}(\py@varvars{#2})}%
+    \item[\strong{class }\code{\bfcode{#1}(\py@varvars{#2})}%
       \index{#1@{\py@idxcode{#1}} (class in \py@thismodule)}]
 }{\end{fulllineitems}}
 
@@ -608,7 +608,7 @@
   % Using \renewcommand doesn't work for this, for unknown reasons:
   \global\def\py@thisclass{#1}
   \begin{fulllineitems}
-    \item[\code{\bfcode{#1}(\py@varvars{#2})}%
+    \item[\strong{exception }\code{\bfcode{#1}(\py@varvars{#2})}%
       \index{#1@{\py@idxcode{#1}} (exception in \py@thismodule)}]
 }{\end{fulllineitems}}
 
@@ -678,7 +678,7 @@
 %  -- for constructor information, use excclassdesc instead
 \newenvironment{excdesc}[1]{
   \begin{fulllineitems}
-    \item[\bfcode{#1}%
+    \item[\strong{exception }\bfcode{#1}%
           \index{#1@{\py@idxcode{#1}} (exception in \py@thismodule)}]
 }{\end{fulllineitems}}