def _color_edge(self, edge, linecolor=None, textcolor=None):
        """
        Color in an edge with the given colors.
        If no colors are specified, use intelligent defaults
        (dependent on selection, etc.)
        """
        if self._edgetags not in edge: return
        c = self._chart_canvas

        if linecolor is not None and textcolor is not None:
            if edge in self._marks:
                linecolor = self._marks[edge]
            tags = self._edgetags[edge]
            c.itemconfig(tags[0], fill=linecolor)
            c.itemconfig(tags[1], fill=textcolor)
            c.itemconfig(tags[2], fill=textcolor,
                         outline=textcolor)
            c.itemconfig(tags[3], fill=textcolor)
            c.itemconfig(tags[4], fill=textcolor)
            return
        else:
            N = self._chart.num_leaves()
            if edge in self._marks:
                self._color_edge(self._marks[edge])
            if (edge.is_complete() and edge.span() == (0, N)):
                self._color_edge(edge, '#084', '#042')
            elif isinstance(edge, LeafEdge):
                self._color_edge(edge, '#48c', '#246')
            else:
                self._color_edge(edge, '#00f', '#008')
dataset/ETHPy150Open nltk/nltk/nltk/app/chartparser_app.py/ChartView._color_edge/swapped operands of `not in`