--- a/src/eric7/QScintilla/Lexers/LexerContainer.py	Wed Jul 13 11:16:20 2022 +0200
+++ b/src/eric7/QScintilla/Lexers/LexerContainer.py	Wed Jul 13 14:55:47 2022 +0200
@@ -16,62 +16,63 @@
     """
     Subclass as a base for the implementation of custom lexers.
     """
+
     def __init__(self, parent=None):
         """
         Constructor
-        
+
         @param parent parent widget of this lexer
         """
         QsciLexer.__init__(self, parent)
         Lexer.__init__(self)
-        
+
         self.editor = parent
-    
+
     def language(self):
         """
         Public method returning the language of the lexer.
-        
+
         @return language of the lexer (string)
         """
         return "Container"
-    
+
     def lexer(self):
         """
         Public method returning the type of the lexer.
-        
+
         @return type of the lexer (string)
         """
-        if hasattr(self, 'lexerId'):
+        if hasattr(self, "lexerId"):
             return None
         else:
             return "container"
-    
+
     def description(self, style):
         """
         Public method returning the descriptions of the styles supported
         by the lexer.
-        
+
         <b>Note</b>: This methods needs to be overridden by the lexer class.
-        
+
         @param style style number (integer)
         @return description for the given style (string)
         """
         return ""
-    
+
     def styleText(self, start, end):
         """
         Public method to perform the styling.
-        
+
         @param start position of first character to be styled (integer)
         @param end position of last character to be styled (integer)
         """
-        self.editor.startStyling(start, 0x1f)
+        self.editor.startStyling(start, 0x1F)
         self.editor.setStyling(end - start + 1, 0)
-    
+
     def keywords(self, kwSet):
         """
         Public method to get the keywords.
-        
+
         @param kwSet number of the keyword set (integer)
         @return string giving the keywords (string) or None
         """