"""
>>> root = Tk()
>>> maintext = Text(root, {'name': 'maintext'})
>>> peertext = Peer(maintext, root, {'name': 'peertext'})
>>> maintext.insert('1.0', 'Peers are Texts')
>>> peertext.insert('end', ' too, you know!')
>>> maintext.pack()
>>> peertext.pack()
>>> peertext.config({'background': 'grey'})
>>> peertext.dump('1.0', 'end') == maintext.dump('1.0', 'end')
True
>>> root.destroy()
"""
from tkinter import *

class PeerBase(Misc):
    def __init__(self, master, widgetName, cnf={}, kw={}, extra=()):
        """Construct a peer widget."""
        self.target = cnf['name'] # change : added target
        if kw:
            cnf = _cnfmerge((cnf, kw))
        self.widgetName = widgetName
        BaseWidget._setup(self, master, cnf)
        if self._tclCommands is None:
            self._tclCommands = []
        classes = [(k, v) for k, v in cnf.items() if isinstance(k, type)]
        for k, v in classes:
            del cnf[k]
        self.tk.call( # change : modify the actual tk command
            (widgetName, 'peer', 'create', self._w) + extra + self._options(cnf))
        for k, v in classes:
            k.configure(self, v)

class PeerW(PeerBase, Pack, Place, Grid):
    """
    Not sure we need this...
    """
    pass

class Peer(Text):
     def __init__(self, widgetName, master=None, cnf={}, **kw):
         PeerW.__init__(self, master, widgetName, cnf, kw)

if __name__ == '__main__':
    import doctest
    doctest.testmod()