def heading(self, column, option=None, **kw):
        cmd = kw.get('command')
        if cmd and not isinstance(cmd, basestring):
            # callback not registered yet, do it now
            kw['command'] = self.master.register(cmd, self._substitute)

        if option is not None:
            kw[option] = None

        return _val_or_dict(self.tk, kw, self._w, 'heading', column)
Query or modify the heading options for the specified column.
dataset/ETHPy150Open francelabs/datafari/windows/python/Lib/lib-tk/ttk.py/Treeview.heading