python3可用的多列列表MultiListbox

网上多列列表都是for python2only的，找了好久也没有找到一个for python3的多列列表，重新写一个控件又较复杂，好不容易找到一个for python2的多列列表的源代码，修改成for python3的，贴在这里，给需要的朋友。

MOVE_LINES = 0
MOVE_PAGES = 1
MOVE_TOEND = 2

class MultiListbox(Frame):
    def __init__(self, master, lists):
        Frame.__init__(self, master)
        self.lists = []
        for l,w in lists:
            frame = Frame(self); frame.pack(side=LEFT, expand=YES, fill=BOTH)
            Label(frame, text=l, borderwidth=1, relief=RAISED).pack(fill=X)
            lb = Listbox(frame, width=w, borderwidth=0, selectborderwidth=0,
             relief=FLAT, exportselection=FALSE)
            lb.pack(expand=YES, fill=BOTH)
            self.lists.append(lb)
            lb.bind('', lambda e, s=self: s._select(e.y))
            lb.bind('', lambda e, s=self: s._select(e.y))
            lb.bind('', lambda e: 'break')
            lb.bind('', lambda e, s=self: s._b2motion(e.x, e.y))
            lb.bind('', lambda e, s=self: s._button2(e.x, e.y))

        self.bind ('',    lambda e, s=self: s._move (-1, MOVE_LINES))
        self.bind ('',  lambda e, s=self: s._move (+1, MOVE_LINES))
        self.bind ('', lambda e, s=self: s._move (-1, MOVE_PAGES))
        self.bind ('',  lambda e, s=self: s._move (+1, MOVE_PAGES))
        self.bind ('',  lambda e, s=self: s._move (-1, MOVE_TOEND))
        self.bind ('',   lambda e, s=self: s._move (+1, MOVE_TOEND))
            
        frame = Frame(self); frame.pack(side=LEFT, fill=Y)
        Label(frame, borderwidth=1, relief=RAISED).pack(fill=X)
        sb = Scrollbar(frame, orient=VERTICAL, command=self._scroll)
        sb.pack(expand=YES, fill=Y)
        self.lists[0]['yscrollcommand']=sb.set


    def _move (self, lines, relative=0):
        """
        Move the selection a specified number of lines or pages up or
        down the list.  Used by keyboard navigation.
        """
        selected = self.lists[0].curselection()
        try:
            selected = list(map(int, selected))
        except ValueError:
            pass

        try:
            sel = selected[0]
        except IndexError:
            sel = 0

        old  = sel
        size = self.lists [0].size()
        
        if relative == MOVE_LINES:
            sel = sel + lines
        elif relative == MOVE_PAGES:
            sel = sel + (lines * int (self.lists [0]['height']))
        elif relative == MOVE_TOEND:
            if lines < 0:
                sel = 0
            elif lines > 0:
                sel = size - 1
        else:
            print("MultiListbox._move: Unknown move type!")

        if sel < 0:
            sel = 0
        elif sel >= size:
            sel = size - 1
        
        self.selection_clear (old, old)
        self.see (sel)
        self.selection_set (sel)
        return 'break'

    def _select(self, y):
        row = self.lists[0].nearest(y)
        self.selection_clear(0, END)
        self.selection_set(row)
        self.focus_force()
        return 'break'

    def _button2(self, x, y):
        for l in self.lists:
            l.scan_mark(x, y)
        return 'break'

    def _b2motion(self, x, y):
        for l in self.lists:
            l.scan_dragto(x, y)
        return 'break'

    def _scroll(self, *args):
        for l in self.lists:
            l.yview(*args)
        return 'break'

    def curselection(self):
        return self.lists[0].curselection()

    def itemconfigure(self, row_index, col_index, cnf=None, **kw):
        lb = self.lists[col_index] 
        return lb.itemconfigure(row_index, cnf, **kw)

    def rowconfigure(self, row_index, cnf={}, **kw): 
        for lb in self.lists:
            lb.itemconfigure(row_index, cnf, **kw) 

    def delete(self, first, last=None):
        for l in self.lists:
            l.delete(first, last)

    def get(self, first, last=None):
        result = []
        for l in self.lists:
            result.append(l.get(first,last))
        #if last:
        #    return map(*([None] + result))
        return result

    def index(self, index):
        self.lists[0].index(index)

    def insert(self, index, *elements):
        for e in elements:
            i = 0
        for l in self.lists:
            l.insert(index, e[i])
            i = i + 1

    def size(self):
        return self.lists[0].size()

    def see(self, index):
        for l in self.lists:
            l.see(index)

    def selection_anchor(self, index):
        for l in self.lists:
               l.selection_anchor(index)

    def selection_clear(self, first, last=None):
        for l in self.lists:
            l.selection_clear(first, last)

    def selection_includes(self, index):
        return self.lists[0].selection_includes(index)

    def selection_set(self, first, last=None):
        for l in self.lists:
            l.selection_set(first, last)

    def yview_scroll(self, *args, **kwargs):
        for lb in self.lists:
            lb.yview_scroll(*args, **kwargs)