1  """A ScrolledText widget feels like a text widget but also has a
       2  vertical scroll bar on its right.  (Later, options may be added to
       3  add a horizontal bar as well, to make the bars disappear
       4  automatically when not needed, to move them to the other side of the
       5  window, etc.)
       6  
       7  Configuration options are passed to the Text widget.
       8  A Frame widget is inserted between the master and the text, to hold
       9  the Scrollbar widget.
      10  Most methods calls are inherited from the Text widget; Pack, Grid and
      11  Place methods are redirected to the Frame widget however.
      12  """
      13  
      14  from tkinter import Frame, Text, Scrollbar, Pack, Grid, Place
      15  from tkinter.constants import RIGHT, LEFT, Y, BOTH
      16  
      17  __all__ = ['ScrolledText']
      18  
      19  
      20  class ESC[4;38;5;81mScrolledText(ESC[4;38;5;149mText):
      21      def __init__(self, master=None, **kw):
      22          self.frame = Frame(master)
      23          self.vbar = Scrollbar(self.frame)
      24          self.vbar.pack(side=RIGHT, fill=Y)
      25  
      26          kw.update({'yscrollcommand': self.vbar.set})
      27          Text.__init__(self, self.frame, **kw)
      28          self.pack(side=LEFT, fill=BOTH, expand=True)
      29          self.vbar['command'] = self.yview
      30  
      31          # Copy geometry methods of self.frame without overriding Text
      32          # methods -- hack!
      33          text_meths = vars(Text).keys()
      34          methods = vars(Pack).keys() | vars(Grid).keys() | vars(Place).keys()
      35          methods = methods.difference(text_meths)
      36  
      37          for m in methods:
      38              if m[0] != '_' and m != 'config' and m != 'configure':
      39                  setattr(self, m, getattr(self.frame, m))
      40  
      41      def __str__(self):
      42          return str(self.frame)
      43  
      44  
      45  def example():
      46      from tkinter.constants import END
      47  
      48      stext = ScrolledText(bg='white', height=10)
      49      stext.insert(END, __doc__)
      50      stext.pack(fill=BOTH, side=LEFT, expand=True)
      51      stext.focus_set()
      52      stext.mainloop()
      53  
      54  
      55  if __name__ == "__main__":
      56      example()