some small improvements

--HG--
branch : pmacs2

mode_blame.py

@@ -1,7 +1,7 @@
 import color, mode2
 
 from point2 import Point
-from lex2 import Grammar, ConstantRule, PatternRule, RegionRule, DualRegionRule
+from lex2 import Grammar, PatternRule, RegionRule, DualRegionRule
 
 class MetadataGrammar(Grammar):
     rules = [

mode_life.py

@@ -1,7 +1,7 @@
 import re, sets, string, sys
 import color, commands, default, method, mode2, regex, tab2
 from point2 import Point
-from lex2 import Grammar, ConstantRule, PatternRule, ContextPatternRule, \
+from lex2 import Grammar, PatternRule, ContextPatternRule, \
     RegionRule, DualRegionRule
 
 class Life(mode2.Fundamental):

mode_python.py

@@ -2,7 +2,7 @@ import commands, os.path, sets, string
 import color, completer, default, mode2, method, regex, tab2
 import ctag_python
 from point2 import Point
-from lex2 import Grammar, PatternRule, RegionRule, ConstantRule
+from lex2 import Grammar, PatternRule, RegionRule
 
 class StringGrammar(Grammar):
     rules = [
@@ -38,7 +38,8 @@ class PythonGrammar(Grammar):
     ]
 
 class PythonTabber(tab2.StackTabber):
-    endlevel_names   = ('pass', 'return', 'yield', 'raise', 'break', 'continue')
+    #endlevel_names   = ('pass', 'return', 'yield', 'raise', 'break', 'continue')
+    endlevel_names   = ('pass', 'return', 'raise', 'break', 'continue')
     startlevel_names = ('if', 'try', 'class', 'def', 'for', 'while', 'try')
     def __init__(self, m):
         tab2.StackTabber.__init__(self, m)