[python mode] Don't prescribe indentation for multi-line strings

mode/python/python.js

@@ -160,7 +160,7 @@ CodeMirror.defineMode("python", function(conf, parserConf) {
         var singleline = delimiter.length == 1;
         var OUTCLASS = 'string';
         
-        return function tokenString(stream, state) {
+        function tokenString(stream, state) {
             while (!stream.eol()) {
                 stream.eatWhile(/[^'"\\]/);
                 if (stream.eat('\\')) {
@@ -183,7 +183,9 @@ CodeMirror.defineMode("python", function(conf, parserConf) {
                 }
             }
             return OUTCLASS;
-        };
+        }
+        tokenString.isString = true;
+        return tokenString;
     }
     
     function indent(stream, state, type) {
@@ -325,7 +327,7 @@ CodeMirror.defineMode("python", function(conf, parserConf) {
         
         indent: function(state) {
             if (state.tokenize != tokenBase) {
-                return 0;
+                return state.tokenize.isString ? CodeMirror.Pass : 0;
             }
             
             return state.scopes[0].offset;