[PyQt] QsciScintilla vertical scrollbar

[Mpi]

First of all - I hope this is the right place to ask questions about
QsciScintilla.

A 'default'  QsciScintilla window displays a vertical scrollbar. I would
expect this to appear once the column position of the cursor exceeds the
width of the editor window - but not by default. I believe this is the
behavior found in QTextEdit, ie. no vertical scrollbar.

Here's my minimum script that reproduces the above:

import sys
from PyQt4 import Qsci, QtGui

class Editor(Qsci.QsciScintilla):
    def __init__(self, parent=None):
        Qsci.QsciScintilla.__init__(self, parent)
        
if __name__ == "__main__":
    app = QtGui.QApplication(sys.argv)
    editor = Editor()
    editor.show()
    sys.exit(app.exec_())