diff --git a/python/gen/com/jetbrains/python/lexer/_PythonLexer.java b/python/gen/com/jetbrains/python/lexer/_PythonLexer.java
index 2513e5ad5254..9940a45ed095 100644
--- a/python/gen/com/jetbrains/python/lexer/_PythonLexer.java
+++ b/python/gen/com/jetbrains/python/lexer/_PythonLexer.java
@@ -190,31 +190,30 @@ class _PythonLexer implements FlexLexerEx {
     "\1\25\20\3\1\26\1\27\1\30\1\31\1\32\1\33"+
     "\1\34\1\35\1\36\1\37\1\40\1\41\1\42\2\43"+
     "\1\44\2\45\1\46\1\3\2\47\1\22\3\3\1\50"+
-    "\1\51\1\1\1\51\1\52\1\53\1\3\2\54\1\55"+
+    "\1\51\1\50\1\51\1\52\1\53\1\3\2\54\1\55"+
     "\1\56\1\57\1\60\1\61\1\62\1\63\1\64\1\65"+
-    "\3\3\1\50\1\1\1\52\1\66\1\2\5\0\1\2"+
-    "\1\67\1\0\1\70\1\0\1\3\1\67\1\71\1\72"+
-    "\3\7\1\73\3\7\1\3\2\74\1\75\1\76\15\3"+
-    "\1\77\1\100\1\101\1\102\10\3\1\103\1\104\1\105"+
-    "\1\106\1\107\1\110\1\111\1\112\1\113\1\114\1\115"+
-    "\1\116\1\117\1\120\1\121\1\0\3\45\1\122\3\45"+
-    "\1\3\6\47\2\0\1\123\1\3\2\0\1\51\1\124"+
-    "\1\50\1\51\1\3\7\54\1\57\1\3\1\0\1\50"+
-    "\1\0\1\2\1\0\1\2\1\0\1\2\1\0\1\67"+
-    "\1\0\1\3\1\0\1\7\1\125\1\126\1\0\1\125"+
-    "\1\3\2\0\1\127\1\3\1\130\1\131\1\132\5\3"+
-    "\1\133\6\3\1\134\5\3\1\135\1\136\1\137\1\140"+
-    "\1\0\1\45\1\141\1\142\1\0\1\141\1\3\1\47"+
-    "\2\143\1\51\1\3\2\54\1\144\1\50\1\0\2\145"+
-    "\1\0\1\3\1\74\1\3\1\146\1\147\10\3\1\150"+
-    "\1\3\1\151\3\3\1\0\2\142\13\0\2\3\1\152"+
-    "\1\3\1\153\1\154\4\3\1\155\1\3\1\156\7\0"+
-    "\1\125\1\157\1\160\1\161\1\3\1\162\1\163\1\3"+
-    "\1\164\1\141\1\143\1\144\1\145\1\0\1\165\1\3"+
-    "\1\166\1\167";
+    "\3\3\2\50\1\52\1\66\1\2\5\0\1\2\1\67"+
+    "\1\0\1\70\1\0\1\3\1\67\1\71\1\72\3\7"+
+    "\1\73\3\7\1\3\2\74\1\75\1\76\15\3\1\77"+
+    "\1\100\1\101\1\102\10\3\1\103\1\104\1\105\1\106"+
+    "\1\107\1\110\1\111\1\112\1\113\1\114\1\115\1\116"+
+    "\1\117\1\120\1\121\1\0\3\45\1\122\3\45\1\3"+
+    "\6\47\2\0\1\123\1\3\2\0\1\51\1\50\1\51"+
+    "\1\3\7\54\1\57\1\3\1\0\1\50\1\0\1\2"+
+    "\1\0\1\2\1\0\1\2\1\0\1\67\1\0\1\3"+
+    "\1\0\1\7\1\124\1\125\1\0\1\124\1\3\2\0"+
+    "\1\126\1\3\1\127\1\130\1\131\5\3\1\132\6\3"+
+    "\1\133\5\3\1\134\1\135\1\136\1\137\1\0\1\45"+
+    "\1\140\1\141\1\0\1\140\1\3\1\47\2\142\1\51"+
+    "\1\3\2\54\1\143\1\50\1\0\2\144\1\0\1\3"+
+    "\1\74\1\3\1\145\1\146\10\3\1\147\1\3\1\150"+
+    "\3\3\1\0\2\141\13\0\2\3\1\151\1\3\1\152"+
+    "\1\153\4\3\1\154\1\3\1\155\7\0\1\124\1\156"+
+    "\1\157\1\160\1\3\1\161\1\162\1\3\1\163\1\140"+
+    "\1\142\1\143\1\144\1\0\1\164\1\3\1\165\1\166";
 
   private static int [] zzUnpackAction() {
-    int [] result = new int[340];
+    int [] result = new int[339];
     int offset = 0;
     offset = zzUnpackAction(ZZ_ACTION_PACKED_0, offset, result);
     return result;
@@ -262,29 +261,29 @@ class _PythonLexer implements FlexLexerEx {
     "\0\u01c8\0\u01c8\0\u218c\0\u01c8\0\u01c8\0\u21d8\0\u2224\0\u2270"+
     "\0\u22bc\0\u2308\0\u01c8\0\u2354\0\u23a0\0\u23ec\0\u2438\0\u2484"+
     "\0\u24d0\0\u251c\0\u2568\0\u25b4\0\u2600\0\u264c\0\u0f70\0\u01c8"+
-    "\0\u2698\0\u26e4\0\u11d0\0\u2730\0\u01c8\0\u277c\0\u27c8\0\u2814"+
-    "\0\u2860\0\u28ac\0\u24d0\0\u28f8\0\u2944\0\u2990\0\u29dc\0\u2a28"+
-    "\0\u2a74\0\u2ac0\0\u2b0c\0\u2b58\0\u2ba4\0\u2bf0\0\u2c3c\0\u2c88"+
-    "\0\u2cd4\0\u2d20\0\u2d6c\0\u2db8\0\u2e04\0\u0390\0\u2e50\0\u2e9c"+
-    "\0\u01c8\0\u2e50\0\u2ee8\0\u2f34\0\u2f80\0\u2fcc\0\u02ac\0\u3018"+
-    "\0\u02ac\0\u02ac\0\u02ac\0\u3064\0\u30b0\0\u30fc\0\u3148\0\u3194"+
-    "\0\u02ac\0\u31e0\0\u322c\0\u3278\0\u32c4\0\u3310\0\u335c\0\u02ac"+
-    "\0\u33a8\0\u33f4\0\u3440\0\u348c\0\u34d8\0\u01c8\0\u01c8\0\u01c8"+
-    "\0\u01c8\0\u3524\0\u3570\0\u35bc\0\u01c8\0\u3570\0\u3608\0\u3654"+
-    "\0\u01c8\0\u36a0\0\u36ec\0\u01c8\0\u3738\0\u2600\0\u01c8\0\u3784"+
-    "\0\u37d0\0\u381c\0\u3868\0\u38b4\0\u3900\0\u394c\0\u01c8\0\u3998"+
-    "\0\u02ac\0\u02ac\0\u39e4\0\u3a30\0\u3a7c\0\u3ac8\0\u3b14\0\u3b60"+
-    "\0\u3bac\0\u3bf8\0\u02ac\0\u3c44\0\u02ac\0\u3c90\0\u3cdc\0\u3d28"+
-    "\0\u3d74\0\u3dc0\0\u3e0c\0\u3e58\0\u3ea4\0\u3ef0\0\u3f3c\0\u3f88"+
-    "\0\u3fd4\0\u4020\0\u406c\0\u3868\0\u38b4\0\u40b8\0\u4104\0\u4150"+
-    "\0\u02ac\0\u419c\0\u02ac\0\u02ac\0\u41e8\0\u4234\0\u4280\0\u42cc"+
-    "\0\u02ac\0\u4318\0\u02ac\0\u4364\0\u3dc0\0\u3e0c\0\u43b0\0\u43fc"+
-    "\0\u4448\0\u4494\0\u44e0\0\u02ac\0\u02ac\0\u02ac\0\u452c\0\u02ac"+
-    "\0\u02ac\0\u4578\0\u02ac\0\u3570\0\u01c8\0\u01c8\0\u01c8\0\u44e0"+
-    "\0\u01c8\0\u45c4\0\u02ac\0\u02ac";
+    "\0\u2698\0\u1138\0\u11d0\0\u26e4\0\u2730\0\u277c\0\u27c8\0\u2814"+
+    "\0\u2860\0\u24d0\0\u28ac\0\u28f8\0\u2944\0\u2990\0\u29dc\0\u2a28"+
+    "\0\u147c\0\u2a74\0\u2ac0\0\u2b0c\0\u2b58\0\u2ba4\0\u2bf0\0\u2c3c"+
+    "\0\u2c88\0\u2cd4\0\u2d20\0\u2d6c\0\u0390\0\u2db8\0\u2e04\0\u01c8"+
+    "\0\u2db8\0\u2e50\0\u2e9c\0\u2ee8\0\u2f34\0\u02ac\0\u2f80\0\u02ac"+
+    "\0\u02ac\0\u02ac\0\u2fcc\0\u3018\0\u3064\0\u30b0\0\u30fc\0\u02ac"+
+    "\0\u3148\0\u3194\0\u31e0\0\u322c\0\u3278\0\u32c4\0\u02ac\0\u3310"+
+    "\0\u335c\0\u33a8\0\u33f4\0\u3440\0\u01c8\0\u01c8\0\u01c8\0\u01c8"+
+    "\0\u348c\0\u34d8\0\u3524\0\u01c8\0\u34d8\0\u3570\0\u35bc\0\u01c8"+
+    "\0\u3608\0\u3654\0\u01c8\0\u36a0\0\u2600\0\u01c8\0\u36ec\0\u3738"+
+    "\0\u3784\0\u37d0\0\u381c\0\u3868\0\u38b4\0\u01c8\0\u3900\0\u02ac"+
+    "\0\u02ac\0\u394c\0\u3998\0\u39e4\0\u3a30\0\u3a7c\0\u3ac8\0\u3b14"+
+    "\0\u3b60\0\u02ac\0\u3bac\0\u02ac\0\u3bf8\0\u3c44\0\u3c90\0\u3cdc"+
+    "\0\u3d28\0\u3d74\0\u3dc0\0\u3e0c\0\u3e58\0\u3ea4\0\u3ef0\0\u3f3c"+
+    "\0\u3f88\0\u3fd4\0\u37d0\0\u381c\0\u4020\0\u406c\0\u40b8\0\u02ac"+
+    "\0\u4104\0\u02ac\0\u02ac\0\u4150\0\u419c\0\u41e8\0\u4234\0\u02ac"+
+    "\0\u4280\0\u02ac\0\u42cc\0\u3d28\0\u3d74\0\u4318\0\u4364\0\u43b0"+
+    "\0\u43fc\0\u4448\0\u02ac\0\u02ac\0\u02ac\0\u4494\0\u02ac\0\u02ac"+
+    "\0\u44e0\0\u02ac\0\u34d8\0\u01c8\0\u01c8\0\u01c8\0\u4448\0\u01c8"+
+    "\0\u452c\0\u02ac\0\u02ac";
 
   private static int [] zzUnpackRowMap() {
-    int [] result = new int[340];
+    int [] result = new int[339];
     int offset = 0;
     offset = zzUnpackRowMap(ZZ_ROWMAP_PACKED_0, offset, result);
     return result;
@@ -425,264 +424,263 @@ class _PythonLexer implements FlexLexerEx {
     "\14\0\5\12\1\257\1\12\1\257\1\12\1\257\1\211"+
     "\1\212\1\12\1\257\1\22\7\12\16\0\14\113\1\0"+
     "\10\113\1\0\1\272\1\0\1\113\1\273\5\113\1\0"+
-    "\54\113\25\0\1\274\66\0\31\113\2\275\1\276\60\113"+
-    "\27\0\1\277\115\0\1\113\63\0\10\12\1\300\1\12"+
-    "\2\0\2\12\1\0\1\12\1\0\1\12\2\300\1\122"+
-    "\1\0\1\301\1\22\2\0\1\12\14\0\5\12\1\300"+
-    "\1\12\1\300\1\12\1\300\3\12\1\300\1\22\7\12"+
-    "\16\0\14\302\1\0\10\302\1\303\1\304\10\302\1\0"+
-    "\54\302\14\305\1\0\11\305\1\306\1\307\7\305\1\0"+
-    "\54\305\14\310\1\0\10\310\1\0\1\310\1\0\2\310"+
-    "\1\0\1\310\1\0\1\310\1\175\1\0\4\310\2\0"+
-    "\46\310\1\0\10\12\1\300\1\12\2\0\2\12\1\0"+
-    "\1\12\1\0\1\12\2\300\1\122\1\0\1\301\1\22"+
-    "\2\0\1\12\14\0\1\205\3\12\1\206\1\300\1\12"+
-    "\1\300\1\12\1\300\3\12\1\300\1\22\7\12\17\0"+
-    "\10\12\1\300\1\12\2\0\2\12\1\0\1\12\1\0"+
-    "\1\12\2\300\1\122\1\0\1\301\1\22\2\0\1\12"+
-    "\14\0\5\12\1\311\1\12\1\300\1\12\1\300\3\12"+
-    "\1\300\1\22\7\12\17\0\10\12\1\300\1\12\2\0"+
-    "\2\12\1\0\1\12\1\0\1\12\2\300\1\122\1\0"+
-    "\1\301\1\22\2\0\1\12\14\0\5\12\1\300\1\12"+
-    "\1\300\1\12\1\300\1\211\1\212\1\12\1\300\1\22"+
-    "\7\12\16\0\14\140\1\0\10\140\1\0\1\312\1\0"+
-    "\1\140\2\0\4\140\1\0\105\140\2\275\1\313\60\140"+
+    "\54\113\25\0\1\274\66\0\31\113\2\0\1\275\60\113"+
+    "\27\0\1\276\115\0\1\113\63\0\10\12\1\277\1\12"+
+    "\2\0\2\12\1\0\1\12\1\0\1\12\2\277\1\122"+
+    "\1\0\1\300\1\22\2\0\1\12\14\0\5\12\1\277"+
+    "\1\12\1\277\1\12\1\277\3\12\1\277\1\22\7\12"+
+    "\16\0\14\301\1\0\10\301\1\302\1\303\10\301\1\0"+
+    "\54\301\14\304\1\0\11\304\1\305\1\306\7\304\1\0"+
+    "\54\304\14\307\1\0\10\307\1\0\1\307\1\0\2\307"+
+    "\1\0\1\307\1\0\1\307\1\175\1\0\4\307\2\0"+
+    "\46\307\1\0\10\12\1\277\1\12\2\0\2\12\1\0"+
+    "\1\12\1\0\1\12\2\277\1\122\1\0\1\300\1\22"+
+    "\2\0\1\12\14\0\1\205\3\12\1\206\1\277\1\12"+
+    "\1\277\1\12\1\277\3\12\1\277\1\22\7\12\17\0"+
+    "\10\12\1\277\1\12\2\0\2\12\1\0\1\12\1\0"+
+    "\1\12\2\277\1\122\1\0\1\300\1\22\2\0\1\12"+
+    "\14\0\5\12\1\310\1\12\1\277\1\12\1\277\3\12"+
+    "\1\277\1\22\7\12\17\0\10\12\1\277\1\12\2\0"+
+    "\2\12\1\0\1\12\1\0\1\12\2\277\1\122\1\0"+
+    "\1\300\1\22\2\0\1\12\14\0\5\12\1\277\1\12"+
+    "\1\277\1\12\1\277\1\211\1\212\1\12\1\277\1\22"+
+    "\7\12\16\0\14\140\1\0\10\140\1\0\1\311\1\0"+
+    "\1\140\2\0\4\140\1\0\105\140\2\0\1\312\60\140"+
     "\1\0\1\144\1\145\1\144\1\0\1\144\1\0\1\147"+
     "\2\0\1\152\4\0\1\153\1\154\1\0\1\155\31\0"+
     "\1\154\5\0\1\152\32\0\3\145\1\0\1\145\1\0"+
-    "\1\314\7\0\1\153\1\154\1\0\1\155\31\0\1\154"+
-    "\40\0\5\315\1\0\1\316\1\0\1\315\6\0\1\315"+
-    "\2\0\1\315\4\0\1\315\17\0\1\315\1\0\1\315"+
-    "\1\0\1\315\2\0\1\315\1\0\1\315\4\0\1\315"+
-    "\26\0\1\144\1\145\1\144\1\0\1\144\107\0\1\317"+
-    "\1\0\1\317\1\0\1\317\1\0\1\320\105\0\1\321"+
-    "\3\0\1\321\1\0\1\322\105\0\3\160\1\0\1\160"+
-    "\12\0\1\154\1\0\1\155\31\0\1\154\40\0\3\323"+
-    "\1\0\1\323\13\0\1\324\54\0\1\324\16\0\3\11"+
-    "\1\0\1\11\107\0\10\12\1\325\1\12\2\0\2\12"+
-    "\1\0\1\12\1\0\1\12\2\325\1\17\1\0\1\21"+
-    "\1\22\2\0\1\12\14\0\5\12\1\325\1\12\1\325"+
-    "\1\12\1\325\3\12\1\325\1\22\7\12\17\0\3\160"+
-    "\1\0\1\160\1\0\1\326\10\0\1\154\1\0\1\155"+
-    "\31\0\1\154\37\0\14\163\1\0\10\163\1\327\1\165"+
-    "\10\163\1\166\54\163\25\0\1\330\1\331\5\0\1\332"+
-    "\2\0\1\166\5\0\1\332\1\0\1\166\44\0\114\163"+
-    "\14\167\1\0\11\167\1\170\1\327\7\167\1\166\170\167"+
-    "\26\0\1\331\1\333\4\0\1\332\2\0\1\166\5\0"+
-    "\1\332\1\0\1\166\45\0\10\12\1\334\1\12\2\0"+
-    "\2\12\1\0\1\12\1\0\1\12\2\334\1\173\1\0"+
-    "\1\174\1\12\2\0\1\12\14\0\5\12\1\334\1\12"+
-    "\1\334\1\12\1\334\3\12\1\334\10\12\43\0\1\335"+
-    "\115\0\1\336\65\0\12\12\2\0\2\12\1\0\1\12"+
+    "\1\313\7\0\1\153\1\154\1\0\1\155\31\0\1\154"+
+    "\40\0\5\314\1\0\1\315\1\0\1\314\6\0\1\314"+
+    "\2\0\1\314\4\0\1\314\17\0\1\314\1\0\1\314"+
+    "\1\0\1\314\2\0\1\314\1\0\1\314\4\0\1\314"+
+    "\26\0\1\144\1\145\1\144\1\0\1\144\107\0\1\316"+
+    "\1\0\1\316\1\0\1\316\1\0\1\317\105\0\1\320"+
+    "\3\0\1\320\1\0\1\321\105\0\3\160\1\0\1\160"+
+    "\12\0\1\154\1\0\1\155\31\0\1\154\40\0\3\322"+
+    "\1\0\1\322\13\0\1\323\54\0\1\323\16\0\3\11"+
+    "\1\0\1\11\107\0\10\12\1\324\1\12\2\0\2\12"+
+    "\1\0\1\12\1\0\1\12\2\324\1\17\1\0\1\21"+
+    "\1\22\2\0\1\12\14\0\5\12\1\324\1\12\1\324"+
+    "\1\12\1\324\3\12\1\324\1\22\7\12\17\0\3\160"+
+    "\1\0\1\160\1\0\1\325\10\0\1\154\1\0\1\155"+
+    "\31\0\1\154\37\0\14\163\1\0\10\163\1\326\1\165"+
+    "\10\163\1\166\54\163\25\0\1\327\1\330\5\0\1\331"+
+    "\2\0\1\166\5\0\1\331\1\0\1\166\44\0\114\163"+
+    "\14\167\1\0\11\167\1\170\1\326\7\167\1\166\170\167"+
+    "\26\0\1\330\1\332\4\0\1\331\2\0\1\166\5\0"+
+    "\1\331\1\0\1\166\45\0\10\12\1\333\1\12\2\0"+
+    "\2\12\1\0\1\12\1\0\1\12\2\333\1\173\1\0"+
+    "\1\174\1\12\2\0\1\12\14\0\5\12\1\333\1\12"+
+    "\1\333\1\12\1\333\3\12\1\333\10\12\43\0\1\334"+
+    "\115\0\1\335\65\0\12\12\2\0\2\12\1\0\1\12"+
     "\1\0\3\12\3\0\1\12\2\0\1\12\14\0\2\12"+
-    "\1\337\23\12\17\0\12\12\2\0\2\12\1\0\1\12"+
+    "\1\336\23\12\17\0\12\12\2\0\2\12\1\0\1\12"+
     "\1\0\3\12\3\0\1\12\2\0\1\12\14\0\3\12"+
-    "\1\340\22\12\17\0\12\12\2\0\2\12\1\0\1\12"+
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+    "\3\12\3\0\1\12\2\0\1\12\14\0\1\u011b\25\12"+
     "\17\0\12\12\2\0\2\12\1\0\1\12\1\0\3\12"+
-    "\3\0\1\12\2\0\1\12\14\0\3\12\1\u011d\22\12"+
+    "\3\0\1\12\2\0\1\12\14\0\3\12\1\u011c\22\12"+
     "\17\0\12\12\2\0\2\12\1\0\1\12\1\0\3\12"+
-    "\3\0\1\12\2\0\1\12\14\0\12\12\1\u011e\13\12"+
+    "\3\0\1\12\2\0\1\12\14\0\12\12\1\u011d\13\12"+
     "\17\0\12\12\2\0\2\12\1\0\1\12\1\0\3\12"+
-    "\3\0\1\12\2\0\1\12\14\0\7\12\1\u011f\16\12"+
+    "\3\0\1\12\2\0\1\12\14\0\7\12\1\u011e\16\12"+
     "\17\0\12\12\2\0\2\12\1\0\1\12\1\0\3\12"+
-    "\3\0\1\12\2\0\1\12\14\0\12\12\1\u0120\13\12"+
-    "\43\0\1\101\1\0\1\102\112\0\1\375\5\0\1\376"+
-    "\2\0\1\253\5\0\1\376\1\0\1\253\44\0\25\374"+
-    "\1\u0121\1\u0122\65\374\26\377\1\u0123\1\u0124\64\377\1\0"+
+    "\3\0\1\12\2\0\1\12\14\0\12\12\1\u011f\13\12"+
+    "\43\0\1\101\1\0\1\102\112\0\1\374\5\0\1\375"+
+    "\2\0\1\253\5\0\1\375\1\0\1\253\44\0\25\373"+
+    "\1\u0120\1\u0121\65\373\26\376\1\u0122\1\u0123\64\376\1\0"+
     "\12\12\2\0\2\12\1\0\1\12\1\0\3\12\1\105"+
     "\1\0\1\106\1\22\2\0\1\12\14\0\16\12\1\22"+
-    "\7\12\16\0\25\u0102\1\u0125\1\u0126\65\u0102\26\u0103\1\u0127"+
-    "\1\u0128\64\u0103\1\0\12\12\2\0\2\12\1\0\1\12"+
-    "\1\0\3\12\1\122\1\0\1\301\1\22\2\0\1\12"+
-    "\14\0\16\12\1\22\7\12\16\0\26\u0108\1\u0129\1\u012a"+
-    "\64\u0108\1\140\12\u0109\1\140\1\0\2\u0109\1\140\1\u0109"+
-    "\1\140\3\u0109\1\0\1\312\1\0\1\u0109\1\0\1\140"+
-    "\2\u0109\2\140\1\0\10\140\26\u0109\16\140\25\330\1\u012b"+
-    "\1\u012c\201\330\142\333\1\u012d\1\u012e\64\333\1\0\12\12"+
+    "\7\12\16\0\25\u0101\1\u0124\1\u0125\65\u0101\26\u0102\1\u0126"+
+    "\1\u0127\64\u0102\1\0\12\12\2\0\2\12\1\0\1\12"+
+    "\1\0\3\12\1\122\1\0\1\300\1\22\2\0\1\12"+
+    "\14\0\16\12\1\22\7\12\16\0\26\u0107\1\u0128\1\u0129"+
+    "\64\u0107\1\140\12\u0108\1\140\1\0\2\u0108\1\140\1\u0108"+
+    "\1\140\3\u0108\1\0\1\311\1\0\1\u0108\1\0\1\140"+
+    "\2\u0108\2\140\1\0\10\140\26\u0108\16\140\25\327\1\u012a"+
+    "\1\u012b\201\327\142\332\1\u012c\1\u012d\64\332\1\0\12\12"+
     "\2\0\2\12\1\0\1\12\1\0\3\12\1\173\1\0"+
     "\1\174\1\12\2\0\1\12\14\0\26\12\17\0\12\12"+
     "\2\0\2\12\1\0\1\12\1\0\3\12\3\0\1\12"+
-    "\2\0\1\12\14\0\5\12\1\u012f\20\12\17\0\12\12"+
+    "\2\0\1\12\14\0\5\12\1\u012e\20\12\17\0\12\12"+
     "\2\0\2\12\1\0\1\12\1\0\3\12\3\0\1\12"+
-    "\2\0\1\12\14\0\20\12\1\u0130\5\12\17\0\12\12"+
+    "\2\0\1\12\14\0\20\12\1\u012f\5\12\17\0\12\12"+
     "\2\0\2\12\1\0\1\12\1\0\3\12\3\0\1\12"+
-    "\2\0\1\12\14\0\4\12\1\u0131\21\12\17\0\12\12"+
+    "\2\0\1\12\14\0\4\12\1\u0130\21\12\17\0\12\12"+
     "\2\0\2\12\1\0\1\12\1\0\3\12\3\0\1\12"+
-    "\2\0\1\12\14\0\5\12\1\u0132\20\12\17\0\12\12"+
+    "\2\0\1\12\14\0\5\12\1\u0131\20\12\17\0\12\12"+
     "\2\0\2\12\1\0\1\12\1\0\3\12\3\0\1\12"+
-    "\2\0\1\12\14\0\10\12\1\u0133\15\12\17\0\12\12"+
+    "\2\0\1\12\14\0\10\12\1\u0132\15\12\17\0\12\12"+
     "\2\0\2\12\1\0\1\12\1\0\3\12\3\0\1\12"+
-    "\2\0\1\12\14\0\3\12\1\u0134\22\12\17\0\12\12"+
+    "\2\0\1\12\14\0\3\12\1\u0133\22\12\17\0\12\12"+
     "\2\0\2\12\1\0\1\12\1\0\3\12\3\0\1\12"+
-    "\2\0\1\12\14\0\14\12\1\u0135\11\12\17\0\12\12"+
+    "\2\0\1\12\14\0\14\12\1\u0134\11\12\17\0\12\12"+
     "\2\0\2\12\1\0\1\12\1\0\3\12\3\0\1\12"+
-    "\2\0\1\12\14\0\2\12\1\u0136\23\12\17\0\12\12"+
+    "\2\0\1\12\14\0\2\12\1\u0135\23\12\17\0\12\12"+
     "\2\0\2\12\1\0\1\12\1\0\3\12\3\0\1\12"+
-    "\2\0\1\12\14\0\5\12\1\u0137\20\12\17\0\12\12"+
+    "\2\0\1\12\14\0\5\12\1\u0136\20\12\17\0\12\12"+
     "\2\0\2\12\1\0\1\12\1\0\3\12\3\0\1\12"+
-    "\2\0\1\12\14\0\12\12\1\u0138\13\12\17\0\12\12"+
+    "\2\0\1\12\14\0\12\12\1\u0137\13\12\17\0\12\12"+
     "\2\0\2\12\1\0\1\12\1\0\3\12\3\0\1\12"+
-    "\2\0\1\12\14\0\2\12\1\u0139\23\12\17\0\12\12"+
+    "\2\0\1\12\14\0\2\12\1\u0138\23\12\17\0\12\12"+
     "\2\0\2\12\1\0\1\12\1\0\3\12\3\0\1\12"+
-    "\2\0\1\12\14\0\1\u013a\25\12\17\0\12\12\2\0"+
+    "\2\0\1\12\14\0\1\u0139\25\12\17\0\12\12\2\0"+
     "\2\12\1\0\1\12\1\0\3\12\3\0\1\12\2\0"+
-    "\1\12\14\0\4\12\1\u013b\21\12\16\0\25\374\1\u013c"+
-    "\1\u013d\201\374\142\377\1\u013e\1\u013f\64\377\25\u0102\1\u0140"+
-    "\1\u0126\201\u0102\142\u0103\1\u0127\1\u0141\64\u0103\142\u0108\1\u0129"+
-    "\1\u0142\64\u0108\25\330\1\u0143\1\u012c\65\330\26\333\1\u012d"+
-    "\1\u0143\64\333\1\0\12\12\2\0\2\12\1\0\1\12"+
+    "\1\12\14\0\4\12\1\u013a\21\12\16\0\25\373\1\u013b"+
+    "\1\u013c\201\373\142\376\1\u013d\1\u013e\64\376\25\u0101\1\u013f"+
+    "\1\u0125\201\u0101\142\u0102\1\u0126\1\u0140\64\u0102\142\u0107\1\u0128"+
+    "\1\u0141\64\u0107\25\327\1\u0142\1\u012b\65\327\26\332\1\u012c"+
+    "\1\u0142\64\332\1\0\12\12\2\0\2\12\1\0\1\12"+
+    "\1\0\3\12\3\0\1\12\2\0\1\12\14\0\6\12"+
+    "\1\u0143\17\12\17\0\12\12\2\0\2\12\1\0\1\12"+
     "\1\0\3\12\3\0\1\12\2\0\1\12\14\0\6\12"+
     "\1\u0144\17\12\17\0\12\12\2\0\2\12\1\0\1\12"+
-    "\1\0\3\12\3\0\1\12\2\0\1\12\14\0\6\12"+
-    "\1\u0145\17\12\17\0\12\12\2\0\2\12\1\0\1\12"+
+    "\1\0\3\12\3\0\1\12\2\0\1\12\14\0\1\12"+
+    "\1\u0145\24\12\17\0\12\12\2\0\2\12\1\0\1\12"+
     "\1\0\3\12\3\0\1\12\2\0\1\12\14\0\1\12"+
     "\1\u0146\24\12\17\0\12\12\2\0\2\12\1\0\1\12"+
-    "\1\0\3\12\3\0\1\12\2\0\1\12\14\0\1\12"+
-    "\1\u0147\24\12\17\0\12\12\2\0\2\12\1\0\1\12"+
-    "\1\0\3\12\3\0\1\12\2\0\1\12\14\0\1\u0148"+
+    "\1\0\3\12\3\0\1\12\2\0\1\12\14\0\1\u0147"+
     "\25\12\17\0\12\12\2\0\2\12\1\0\1\12\1\0"+
-    "\3\12\3\0\1\12\2\0\1\12\14\0\6\12\1\u0149"+
+    "\3\12\3\0\1\12\2\0\1\12\14\0\6\12\1\u0148"+
     "\17\12\17\0\12\12\2\0\2\12\1\0\1\12\1\0"+
-    "\3\12\3\0\1\12\2\0\1\12\14\0\12\12\1\u014a"+
+    "\3\12\3\0\1\12\2\0\1\12\14\0\12\12\1\u0149"+
     "\13\12\17\0\12\12\2\0\2\12\1\0\1\12\1\0"+
-    "\3\12\3\0\1\12\2\0\1\12\14\0\12\12\1\u014b"+
-    "\13\12\16\0\25\374\1\u014c\1\u013d\65\374\26\377\1\u013e"+
-    "\1\u014c\64\377\25\u0102\1\u014d\1\u0126\65\u0102\26\u0103\1\u0127"+
-    "\1\u014d\64\u0103\26\u0108\1\u0129\1\u014e\64\u0108\26\0\1\u014f"+
-    "\5\0\1\u0150\2\0\1\u0151\5\0\1\u0150\1\0\1\u0151"+
+    "\3\12\3\0\1\12\2\0\1\12\14\0\12\12\1\u014a"+
+    "\13\12\16\0\25\373\1\u014b\1\u013c\65\373\26\376\1\u013d"+
+    "\1\u014b\64\376\25\u0101\1\u014c\1\u0125\65\u0101\26\u0102\1\u0126"+
+    "\1\u014c\64\u0102\26\u0107\1\u0128\1\u014d\64\u0107\26\0\1\u014e"+
+    "\5\0\1\u014f\2\0\1\u0150\5\0\1\u014f\1\0\1\u0150"+
     "\45\0\12\12\2\0\2\12\1\0\1\12\1\0\3\12"+
-    "\3\0\1\12\2\0\1\12\14\0\15\12\1\u0152\10\12"+
+    "\3\0\1\12\2\0\1\12\14\0\15\12\1\u0151\10\12"+
     "\17\0\12\12\2\0\2\12\1\0\1\12\1\0\3\12"+
-    "\3\0\1\12\2\0\1\12\14\0\21\12\1\u0153\4\12"+
+    "\3\0\1\12\2\0\1\12\14\0\21\12\1\u0152\4\12"+
     "\17\0\12\12\2\0\2\12\1\0\1\12\1\0\3\12"+
-    "\3\0\1\12\2\0\1\12\14\0\4\12\1\u0154\21\12"+
+    "\3\0\1\12\2\0\1\12\14\0\4\12\1\u0153\21\12"+
     "\16\0";
 
   private static int [] zzUnpackTrans() {
-    int [] result = new int[17936];
+    int [] result = new int[17784];
     int offset = 0;
     offset = zzUnpackTrans(ZZ_TRANS_PACKED_0, offset, result);
     return result;
@@ -726,16 +724,16 @@ class _PythonLexer implements FlexLexerEx {
     "\1\0\1\11\1\0\2\1\2\11\3\1\1\11\6\1"+
     "\2\11\31\1\2\11\1\1\2\11\1\1\5\11\1\1"+
     "\2\11\1\1\1\0\3\1\1\11\12\1\2\0\1\11"+
-    "\1\1\2\0\1\1\1\11\14\1\1\0\1\1\1\0"+
+    "\1\1\2\0\15\1\1\0\1\1\1\0\1\1\1\0"+
     "\1\1\1\0\1\1\1\0\1\1\1\0\1\1\1\0"+
-    "\1\1\1\0\2\1\1\11\1\0\2\1\2\0\27\1"+
-    "\4\11\1\0\2\1\1\11\1\0\2\1\1\11\2\1"+
-    "\1\11\2\1\1\11\2\1\1\0\2\1\1\0\1\1"+
-    "\1\11\21\1\1\0\2\1\13\0\15\1\7\0\12\1"+
-    "\3\11\1\0\1\11\3\1";
+    "\2\1\1\11\1\0\2\1\2\0\27\1\4\11\1\0"+
+    "\2\1\1\11\1\0\2\1\1\11\2\1\1\11\2\1"+
+    "\1\11\2\1\1\0\2\1\1\0\1\1\1\11\21\1"+
+    "\1\0\2\1\13\0\15\1\7\0\12\1\3\11\1\0"+
+    "\1\11\3\1";
 
   private static int [] zzUnpackAttribute() {
-    int [] result = new int[340];
+    int [] result = new int[339];
     int offset = 0;
     offset = zzUnpackAttribute(ZZ_ATTRIBUTE_PACKED_0, offset, result);
     return result;
@@ -1051,605 +1049,600 @@ return yylength()-s.length();
             { return PyTokenTypes.BAD_CHARACTER;
             } 
             // fall through
-          case 120: break;
+          case 119: break;
           case 2: 
             { return PyTokenTypes.INTEGER_LITERAL;
             } 
             // fall through
-          case 121: break;
+          case 120: break;
           case 3: 
             { return PyTokenTypes.IDENTIFIER;
             } 
             // fall through
-          case 122: break;
+          case 121: break;
           case 4: 
             { if (zzCurrentPos == 0) yybegin(PENDING_DOCSTRING); return PyTokenTypes.END_OF_LINE_COMMENT;
             } 
             // fall through
-          case 123: break;
+          case 122: break;
           case 5: 
             { return PyTokenTypes.DOT;
             } 
             // fall through
-          case 124: break;
+          case 123: break;
           case 6: 
             { return PyTokenTypes.MINUS;
             } 
             // fall through
-          case 125: break;
+          case 124: break;
           case 7: 
             { if (zzInput == YYEOF && zzStartRead == 0) return PyTokenTypes.DOCSTRING;
                                  else return PyTokenTypes.SINGLE_QUOTED_STRING;
             } 
             // fall through
-          case 126: break;
+          case 125: break;
           case 8: 
             { return PyTokenTypes.BACKSLASH;
             } 
             // fall through
-          case 127: break;
+          case 126: break;
           case 9: 
             { return PyTokenTypes.LBRACE;
             } 
             // fall through
-          case 128: break;
+          case 127: break;
           case 10: 
             { return PyTokenTypes.RBRACE;
             } 
             // fall through
-          case 129: break;
+          case 128: break;
           case 11: 
             { return PyTokenTypes.SPACE;
             } 
             // fall through
-          case 130: break;
+          case 129: break;
           case 12: 
             { return PyTokenTypes.EQ;
             } 
             // fall through
-          case 131: break;
+          case 130: break;
           case 13: 
             { if (zzCurrentPos == 0) yybegin(PENDING_DOCSTRING); return PyTokenTypes.LINE_BREAK;
             } 
             // fall through
-          case 132: break;
+          case 131: break;
           case 14: 
             { return PyTokenTypes.LPAR;
             } 
             // fall through
-          case 133: break;
+          case 132: break;
           case 15: 
             { return PyTokenTypes.RPAR;
             } 
             // fall through
-          case 134: break;
+          case 133: break;
           case 16: 
             { return PyTokenTypes.LBRACKET;
             } 
             // fall through
-          case 135: break;
+          case 134: break;
           case 17: 
             { return PyTokenTypes.RBRACKET;
             } 
             // fall through
-          case 136: break;
+          case 135: break;
           case 18: 
             { return PyTokenTypes.COLON;
             } 
             // fall through
-          case 137: break;
+          case 136: break;
           case 19: 
             { return PyTokenTypes.TAB;
             } 
             // fall through
-          case 138: break;
+          case 137: break;
           case 20: 
             { return PyTokenTypes.FORMFEED;
             } 
             // fall through
-          case 139: break;
+          case 138: break;
           case 21: 
             { return PyTokenTypes.SEMICOLON;
             } 
             // fall through
-          case 140: break;
+          case 139: break;
           case 22: 
             { return PyTokenTypes.PLUS;
             } 
             // fall through
-          case 141: break;
+          case 140: break;
           case 23: 
             { return PyTokenTypes.MULT;
             } 
             // fall through
-          case 142: break;
+          case 141: break;
           case 24: 
             { return PyTokenTypes.AT;
             } 
             // fall through
-          case 143: break;
+          case 142: break;
           case 25: 
             { return PyTokenTypes.DIV;
             } 
             // fall through
-          case 144: break;
+          case 143: break;
           case 26: 
             { return PyTokenTypes.PERC;
             } 
             // fall through
-          case 145: break;
+          case 144: break;
           case 27: 
             { return PyTokenTypes.AND;
             } 
             // fall through
-          case 146: break;
+          case 145: break;
           case 28: 
             { return PyTokenTypes.OR;
             } 
             // fall through
-          case 147: break;
+          case 146: break;
           case 29: 
             { return PyTokenTypes.XOR;
             } 
             // fall through
-          case 148: break;
+          case 147: break;
           case 30: 
             { return PyTokenTypes.GT;
             } 
             // fall through
-          case 149: break;
+          case 148: break;
           case 31: 
             { return PyTokenTypes.LT;
             } 
             // fall through
-          case 150: break;
+          case 149: break;
           case 32: 
             { return PyTokenTypes.TILDE;
             } 
             // fall through
-          case 151: break;
+          case 150: break;
           case 33: 
             { return PyTokenTypes.COMMA;
             } 
             // fall through
-          case 152: break;
+          case 151: break;
           case 34: 
             { return PyTokenTypes.TICK;
             } 
             // fall through
-          case 153: break;
+          case 152: break;
           case 35: 
             { yypushback(1); yybegin(YYINITIAL);
             } 
             // fall through
-          case 154: break;
+          case 153: break;
           case 36: 
             { return PyTokenTypes.END_OF_LINE_COMMENT;
             } 
             // fall through
-          case 155: break;
+          case 154: break;
           case 37: 
             { if (zzInput == YYEOF) return PyTokenTypes.DOCSTRING;
                                  else yybegin(YYINITIAL); return PyTokenTypes.SINGLE_QUOTED_STRING;
             } 
             // fall through
-          case 156: break;
+          case 155: break;
           case 38: 
             { return PyTokenTypes.LINE_BREAK;
             } 
             // fall through
-          case 157: break;
+          case 156: break;
           case 39: 
             { return PyTokenTypes.SINGLE_QUOTED_STRING;
             } 
             // fall through
-          case 158: break;
+          case 157: break;
           case 40: 
             { return PyTokenTypes.FSTRING_TEXT;
             } 
             // fall through
-          case 159: break;
+          case 158: break;
           case 41: 
             { return fStringHelper.handleFStringEnd();
             } 
             // fall through
-          case 160: break;
+          case 159: break;
           case 42: 
             { return fStringHelper.handleFragmentStart();
             } 
             // fall through
-          case 161: break;
+          case 160: break;
           case 43: 
             { return fStringHelper.handleLineBreakInLiteralText();
             } 
             // fall through
-          case 162: break;
+          case 161: break;
           case 44: 
             { return fStringHelper.handleStringLiteral(PyTokenTypes.SINGLE_QUOTED_STRING);
             } 
             // fall through
-          case 163: break;
+          case 162: break;
           case 45: 
             { return fStringHelper.handleLeftBracketInFragment(PyTokenTypes.LBRACE);
             } 
             // fall through
-          case 164: break;
+          case 163: break;
           case 46: 
             { return fStringHelper.handleRightBracketInFragment(PyTokenTypes.RBRACE);
             } 
             // fall through
-          case 165: break;
+          case 164: break;
           case 47: 
             { return PyTokenTypes.FSTRING_FRAGMENT_TYPE_CONVERSION;
             } 
             // fall through
-          case 166: break;
+          case 165: break;
           case 48: 
             { return fStringHelper.handleLineBreakInFragment();
             } 
             // fall through
-          case 167: break;
+          case 166: break;
           case 49: 
             { return fStringHelper.handleLeftBracketInFragment(PyTokenTypes.LPAR);
             } 
             // fall through
-          case 168: break;
+          case 167: break;
           case 50: 
             { return fStringHelper.handleRightBracketInFragment(PyTokenTypes.RPAR);
             } 
             // fall through
-          case 169: break;
+          case 168: break;
           case 51: 
             { return fStringHelper.handleLeftBracketInFragment(PyTokenTypes.LBRACKET);
             } 
             // fall through
-          case 170: break;
+          case 169: break;
           case 52: 
             { return fStringHelper.handleRightBracketInFragment(PyTokenTypes.RBRACKET);
             } 
             // fall through
-          case 171: break;
+          case 170: break;
           case 53: 
             { return fStringHelper.handleColonInFragment();
             } 
             // fall through
-          case 172: break;
+          case 171: break;
           case 54: 
             { return fStringHelper.handleFragmentEnd();
             } 
             // fall through
-          case 173: break;
+          case 172: break;
           case 55: 
             { return PyTokenTypes.FLOAT_LITERAL;
             } 
             // fall through
-          case 174: break;
+          case 173: break;
           case 56: 
             { return PyTokenTypes.IMAGINARY_LITERAL;
             } 
             // fall through
-          case 175: break;
+          case 174: break;
           case 57: 
             { return PyTokenTypes.MINUSEQ;
             } 
             // fall through
-          case 176: break;
+          case 175: break;
           case 58: 
             { return PyTokenTypes.RARROW;
             } 
             // fall through
-          case 177: break;
+          case 176: break;
           case 59: 
             { yypushback(getSpaceLength(yytext())); if (zzCurrentPos != 0) return PyTokenTypes.SINGLE_QUOTED_STRING;
 return PyTokenTypes.DOCSTRING;
             } 
             // fall through
-          case 178: break;
+          case 177: break;
           case 60: 
             { return fStringHelper.handleFStringStart();
             } 
             // fall through
-          case 179: break;
+          case 178: break;
           case 61: 
             { return PyTokenTypes.NE;
             } 
             // fall through
-          case 180: break;
+          case 179: break;
           case 62: 
             { return PyTokenTypes.EQEQ;
             } 
             // fall through
-          case 181: break;
+          case 180: break;
           case 63: 
             { return PyTokenTypes.OR_KEYWORD;
             } 
             // fall through
-          case 182: break;
+          case 181: break;
           case 64: 
             { return PyTokenTypes.IN_KEYWORD;
             } 
             // fall through
-          case 183: break;
+          case 182: break;
           case 65: 
             { return PyTokenTypes.IS_KEYWORD;
             } 
             // fall through
-          case 184: break;
+          case 183: break;
           case 66: 
             { return PyTokenTypes.IF_KEYWORD;
             } 
             // fall through
-          case 185: break;
+          case 184: break;
           case 67: 
             { return PyTokenTypes.PLUSEQ;
             } 
             // fall through
-          case 186: break;
+          case 185: break;
           case 68: 
             { return PyTokenTypes.MULTEQ;
             } 
             // fall through
-          case 187: break;
+          case 186: break;
           case 69: 
             { return PyTokenTypes.EXP;
             } 
             // fall through
-          case 188: break;
+          case 187: break;
           case 70: 
             { return PyTokenTypes.ATEQ;
             } 
             // fall through
-          case 189: break;
+          case 188: break;
           case 71: 
             { return PyTokenTypes.DIVEQ;
             } 
             // fall through
-          case 190: break;
+          case 189: break;
           case 72: 
             { return PyTokenTypes.FLOORDIV;
             } 
             // fall through
-          case 191: break;
+          case 190: break;
           case 73: 
             { return PyTokenTypes.PERCEQ;
             } 
             // fall through
-          case 192: break;
+          case 191: break;
           case 74: 
             { return PyTokenTypes.ANDEQ;
             } 
             // fall through
-          case 193: break;
+          case 192: break;
           case 75: 
             { return PyTokenTypes.OREQ;
             } 
             // fall through
-          case 194: break;
+          case 193: break;
           case 76: 
             { return PyTokenTypes.XOREQ;
             } 
             // fall through
-          case 195: break;
+          case 194: break;
           case 77: 
             { return PyTokenTypes.GE;
             } 
             // fall through
-          case 196: break;
+          case 195: break;
           case 78: 
             { return PyTokenTypes.GTGT;
             } 
             // fall through
-          case 197: break;
+          case 196: break;
           case 79: 
             { return PyTokenTypes.LE;
             } 
             // fall through
-          case 198: break;
+          case 197: break;
           case 80: 
             { return PyTokenTypes.NE_OLD;
             } 
             // fall through
-          case 199: break;
+          case 198: break;
           case 81: 
             { return PyTokenTypes.LTLT;
             } 
             // fall through
-          case 200: break;
+          case 199: break;
           case 82: 
             { yypushback(getSpaceLength(yytext())); yybegin(YYINITIAL); return PyTokenTypes.DOCSTRING;
             } 
             // fall through
-          case 201: break;
+          case 200: break;
           case 83: 
             { yypushback(yylength()-1); yybegin(PENDING_DOCSTRING); return PyTokenTypes.COLON;
             } 
             // fall through
-          case 202: break;
+          case 201: break;
           case 84: 
-            { yypushback(1); return PyTokenTypes.FSTRING_TEXT;
-            } 
-            // fall through
-          case 203: break;
-          case 85: 
             { if (zzInput == YYEOF && zzStartRead == 0) return PyTokenTypes.DOCSTRING;
                                  else return PyTokenTypes.TRIPLE_QUOTED_STRING;
             } 
             // fall through
-          case 204: break;
-          case 86: 
+          case 202: break;
+          case 85: 
             { yypushback(getSpaceLength(yytext())); if (zzCurrentPos != 0) return PyTokenTypes.SINGLE_QUOTED_STRING;
  yybegin(PENDING_DOCSTRING); return PyTokenTypes.DOCSTRING;
             } 
             // fall through
-          case 205: break;
-          case 87: 
+          case 203: break;
+          case 86: 
             { return PyTokenTypes.AND_KEYWORD;
             } 
             // fall through
-          case 206: break;
-          case 88: 
+          case 204: break;
+          case 87: 
             { return PyTokenTypes.NOT_KEYWORD;
             } 
             // fall through
-          case 207: break;
-          case 89: 
+          case 205: break;
+          case 88: 
             { return PyTokenTypes.DEL_KEYWORD;
             } 
             // fall through
-          case 208: break;
-          case 90: 
+          case 206: break;
+          case 89: 
             { yybegin(IN_DOCSTRING_OWNER); return PyTokenTypes.DEF_KEYWORD;
             } 
             // fall through
-          case 209: break;
-          case 91: 
+          case 207: break;
+          case 90: 
             { return PyTokenTypes.TRY_KEYWORD;
             } 
             // fall through
-          case 210: break;
-          case 92: 
+          case 208: break;
+          case 91: 
             { return PyTokenTypes.FOR_KEYWORD;
             } 
             // fall through
-          case 211: break;
-          case 93: 
+          case 209: break;
+          case 92: 
             { return PyTokenTypes.EXPEQ;
             } 
             // fall through
-          case 212: break;
-          case 94: 
+          case 210: break;
+          case 93: 
             { return PyTokenTypes.FLOORDIVEQ;
             } 
             // fall through
-          case 213: break;
-          case 95: 
+          case 211: break;
+          case 94: 
             { return PyTokenTypes.GTGTEQ;
             } 
             // fall through
-          case 214: break;
-          case 96: 
+          case 212: break;
+          case 95: 
             { return PyTokenTypes.LTLTEQ;
             } 
             // fall through
-          case 215: break;
-          case 97: 
+          case 213: break;
+          case 96: 
             { if (zzInput == YYEOF) return PyTokenTypes.DOCSTRING;
                                  else yybegin(YYINITIAL); return PyTokenTypes.TRIPLE_QUOTED_STRING;
             } 
             // fall through
-          case 216: break;
-          case 98: 
+          case 214: break;
+          case 97: 
             { yypushback(getSpaceLength(yytext())); return PyTokenTypes.DOCSTRING;
             } 
             // fall through
-          case 217: break;
-          case 99: 
+          case 215: break;
+          case 98: 
             { return PyTokenTypes.TRIPLE_QUOTED_STRING;
             } 
             // fall through
-          case 218: break;
-          case 100: 
+          case 216: break;
+          case 99: 
             { return fStringHelper.handleStringLiteral(PyTokenTypes.TRIPLE_QUOTED_STRING);
             } 
             // fall through
-          case 219: break;
-          case 101: 
+          case 217: break;
+          case 100: 
             { yypushback(getSpaceLength(yytext())); if (zzCurrentPos != 0) return PyTokenTypes.TRIPLE_QUOTED_STRING;
  yybegin(PENDING_DOCSTRING); return PyTokenTypes.DOCSTRING;
             } 
             // fall through
-          case 220: break;
-          case 102: 
+          case 218: break;
+          case 101: 
             { return PyTokenTypes.ELSE_KEYWORD;
             } 
             // fall through
-          case 221: break;
-          case 103: 
+          case 219: break;
+          case 102: 
             { return PyTokenTypes.ELIF_KEYWORD;
             } 
             // fall through
-          case 222: break;
-          case 104: 
+          case 220: break;
+          case 103: 
             { return PyTokenTypes.FROM_KEYWORD;
             } 
             // fall through
-          case 223: break;
-          case 105: 
+          case 221: break;
+          case 104: 
             { return PyTokenTypes.PASS_KEYWORD;
             } 
             // fall through
-          case 224: break;
-          case 106: 
+          case 222: break;
+          case 105: 
             { return PyTokenTypes.RAISE_KEYWORD;
             } 
             // fall through
-          case 225: break;
-          case 107: 
+          case 223: break;
+          case 106: 
             { return PyTokenTypes.BREAK_KEYWORD;
             } 
             // fall through
-          case 226: break;
-          case 108: 
+          case 224: break;
+          case 107: 
             { yybegin(IN_DOCSTRING_OWNER); return PyTokenTypes.CLASS_KEYWORD;
             } 
             // fall through
-          case 227: break;
-          case 109: 
+          case 225: break;
+          case 108: 
             { return PyTokenTypes.YIELD_KEYWORD;
             } 
             // fall through
-          case 228: break;
-          case 110: 
+          case 226: break;
+          case 109: 
             { return PyTokenTypes.WHILE_KEYWORD;
             } 
             // fall through
-          case 229: break;
-          case 111: 
+          case 227: break;
+          case 110: 
             { return PyTokenTypes.ASSERT_KEYWORD;
             } 
             // fall through
-          case 230: break;
-          case 112: 
+          case 228: break;
+          case 111: 
             { return PyTokenTypes.EXCEPT_KEYWORD;
             } 
             // fall through
-          case 231: break;
-          case 113: 
+          case 229: break;
+          case 112: 
             { return PyTokenTypes.RETURN_KEYWORD;
             } 
             // fall through
-          case 232: break;
-          case 114: 
+          case 230: break;
+          case 113: 
             { return PyTokenTypes.LAMBDA_KEYWORD;
             } 
             // fall through
-          case 233: break;
-          case 115: 
+          case 231: break;
+          case 114: 
             { return PyTokenTypes.IMPORT_KEYWORD;
             } 
             // fall through
-          case 234: break;
-          case 116: 
+          case 232: break;
+          case 115: 
             { return PyTokenTypes.GLOBAL_KEYWORD;
             } 
             // fall through
-          case 235: break;
-          case 117: 
+          case 233: break;
+          case 116: 
             { yypushback(getSpaceLength(yytext())); if (zzCurrentPos != 0) return PyTokenTypes.TRIPLE_QUOTED_STRING;
 return PyTokenTypes.DOCSTRING;
             } 
             // fall through
-          case 236: break;
-          case 118: 
+          case 234: break;
+          case 117: 
             { return PyTokenTypes.FINALLY_KEYWORD;
             } 
             // fall through
-          case 237: break;
-          case 119: 
+          case 235: break;
+          case 118: 
             { return PyTokenTypes.CONTINUE_KEYWORD;
             } 
             // fall through
-          case 238: break;
+          case 236: break;
           default:
             zzScanError(ZZ_NO_MATCH);
           }
diff --git a/python/src/com/jetbrains/python/lexer/Python.flex b/python/src/com/jetbrains/python/lexer/Python.flex
index a8f3000e4532..9d87b17a6e57 100644
--- a/python/src/com/jetbrains/python/lexer/Python.flex
+++ b/python/src/com/jetbrains/python/lexer/Python.flex
@@ -73,7 +73,6 @@ FSTRING_START = {FSTRING_PREFIX} (\"\"\"|'''|\"|')
 FSTRING_QUOTES = (\"{1,3}|'{1,3})
 FSTRING_ESCAPED_LBRACE = "{{"
 FSTRING_ESCAPE_SEQUENCE = \\[^{}\r\n]
-BACKSLASH_ESCAPED_BRACES = "\\{" | "\\}"
 // TODO report it in annotation
 //FSTRING_ESCAPED_RBRACE = "}}"
 NAMED_UNICODE_ESCAPE = \\N\{[\w ]*\}?
@@ -103,10 +102,11 @@ return yylength()-s.length();
 
 <FSTRING> {
   {FSTRING_TEXT_NO_QUOTES} { return PyTokenTypes.FSTRING_TEXT; }
+  "\\" { return PyTokenTypes.FSTRING_TEXT; }
   [\n] { return fStringHelper.handleLineBreakInLiteralText(); }
-  {BACKSLASH_ESCAPED_BRACES} { yypushback(1); return PyTokenTypes.FSTRING_TEXT; }
   {FSTRING_QUOTES} { return fStringHelper.handleFStringEnd(); }
   "{" { return fStringHelper.handleFragmentStart(); }
+  
   [^]  { return PyTokenTypes.BAD_CHARACTER; }
 }
 
@@ -135,13 +135,12 @@ return yylength()-s.length();
 
 <FSTRING_FRAGMENT_FORMAT> {
   {FSTRING_FORMAT_TEXT_NO_QUOTES} { return PyTokenTypes.FSTRING_TEXT; }
+  "\\" { return PyTokenTypes.FSTRING_TEXT; }
   [\n] { return fStringHelper.handleLineBreakInLiteralText(); }
-  {BACKSLASH_ESCAPED_BRACES} { yypushback(1); return PyTokenTypes.FSTRING_TEXT; }
+  {FSTRING_QUOTES} { return fStringHelper.handleFStringEnd(); }
   "{" { return fStringHelper.handleFragmentStart(); }
   "}" { return fStringHelper.handleFragmentEnd(); }
 
-  // format part of a fragment can contain opening quotes
-  {FSTRING_QUOTES} { return fStringHelper.handleFStringEnd(); }
   [^] { return PyTokenTypes.BAD_CHARACTER; }
 }
 
diff --git a/python/testData/psi/UnterminatedFStringWithTrailingBackslashInFormatPart.txt b/python/testData/psi/UnterminatedFStringWithTrailingBackslashInFormatPart.txt
index 787500671d2f..2e581960c94e 100644
--- a/python/testData/psi/UnterminatedFStringWithTrailingBackslashInFormatPart.txt
+++ b/python/testData/psi/UnterminatedFStringWithTrailingBackslashInFormatPart.txt
@@ -5,7 +5,7 @@ PyFile:UnterminatedFStringWithTrailingBackslashInFormatPart.py
     PsiWhiteSpace(' ')
     PsiElement(Py:EQ)('=')
     PsiWhiteSpace(' ')
-    PyStringLiteralExpression: {42:
+    PyStringLiteralExpression: {42:\
       PyFormattedStringNode
         PsiElement(Py:FSTRING_START)('f'')
         PyFStringFragment
@@ -14,8 +14,8 @@ PyFile:UnterminatedFStringWithTrailingBackslashInFormatPart.py
             PsiElement(Py:INTEGER_LITERAL)('42')
           PyFStringFragmentFormatPart
             PsiElement(Py:FSTRING_FRAGMENT_FORMAT_START)(':')
+            PsiElement(Py:FSTRING_TEXT)('\')
           PsiErrorElement:} expected
             <empty list>
-  PsiElement(BAD_CHARACTER)('\')
-  PsiErrorElement:Statement expected, found BAD_CHARACTER
-    <empty list>
\ No newline at end of file
+        PsiErrorElement:' expected
+          <empty list>
\ No newline at end of file
diff --git a/python/testData/psi/UnterminatedFStringWithTrailingBackslashInLiteralPart.txt b/python/testData/psi/UnterminatedFStringWithTrailingBackslashInLiteralPart.txt
index d437bd86c2aa..869c9fc5b1e0 100644
--- a/python/testData/psi/UnterminatedFStringWithTrailingBackslashInLiteralPart.txt
+++ b/python/testData/psi/UnterminatedFStringWithTrailingBackslashInLiteralPart.txt
@@ -5,11 +5,9 @@ PyFile:UnterminatedFStringWithTrailingBackslashInLiteralPart.py
     PsiWhiteSpace(' ')
     PsiElement(Py:EQ)('=')
     PsiWhiteSpace(' ')
-    PyStringLiteralExpression: 
+    PyStringLiteralExpression: \
       PyFormattedStringNode
         PsiElement(Py:FSTRING_START)('f'')
-        PsiErrorElement:unexpected f-string token
-          <empty list>
-  PsiElement(BAD_CHARACTER)('\')
-  PsiErrorElement:Statement expected, found BAD_CHARACTER
-    <empty list>
\ No newline at end of file
+        PsiElement(Py:FSTRING_TEXT)('\')
+        PsiErrorElement:' expected
+          <empty list>
\ No newline at end of file