(python-font-lock-keywords): better defaults.

Misc/python-mode.el

@@ -166,22 +166,19 @@ displayed in the echo area, and if `py-beep-if-tab-change' is non-nil
 the Emacs bell is also rung as a warning.")
 
 (defvar python-font-lock-keywords
-  (purecopy
   (list
    (cons
     (concat
      "\\<\\("
      (mapconcat
       'identity
-       '(
-	 "access"   "and"    "break"
-	 "continue" "del"    "elif"
-	 "else:"    "except" "except:" "exec"
-	 "finally:" "for"    "from"    "global"
-	 "if"       "import" "in"      "is"
-	 "lambda"   "not"    "or"      "pass"
-	 "print"    "raise"  "return"  "try:"
-	 "while"
+      '("access"  "and"      "break"  "continue"
+	"del"     "elif"     "else"   "except"
+	"exec"    "finally"  "for"    "from"
+	"global"  "if"       "import" "in"
+	"is"      "lambda"   "not"    "or"
+	"pass"    "print"    "raise"  "return"
+	"try"     "while"    "def"    "class"
 	)
       "\\|")
      "\\)\\>")
@@ -190,7 +187,7 @@ the Emacs bell is also rung as a warning.")
    '("\\bdef\\s +\\(\\sw+\\)(" 1 font-lock-function-name-face)
    ;; classes
    '("\\bclass\\s +\\(\\sw+\\)[(:]" 1 font-lock-function-name-face)
-    ))
+   )
   "*Additional keywords to highlight `python-mode' buffers.")