Hello According to the QScintilla docs, QsciLexerRuby should have the value 'Error = 1' in its style enumeration - but it seems to be missing: >>> QsciLexerRuby.Error Traceback (most recent call last): File "<stdin>", line 1, in <module> AttributeError: Error This is using QScintilla-gpl-2-snapshot-20080120.