Python 使用ttk.Treeview，如何使水平滚动按预期工作？

使用这个Python脚本，这是我第一次尝试学习

ttk.Treeview

的工作原理（autoscroll的额外副本只是用来分割水平回调和垂直回调）：

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对不起，多了一个窗口；Tkinter的那部分让我困惑不已

众所周知，Tk的Treeview小部件存在水平滚动问题。我刚刚就一个你可能想看的特定场景起草了一个冗长的问题，希望它能给你一些想法：

import Tkinter as tk
import ttk

class Test():
def __init__(self, parent=None):
    self.win = tk.Toplevel()
    self.win.grid_columnconfigure(0, weight=1)
    self.win.grid_rowconfigure(0, weight=1)     

    self.treeFrame = ttk.LabelFrame(self.win, text='Test Scrolling tk.Treeview')
    self.treeFrame.grid(row=0, column=0, padx=5, pady=5, sticky='nsew')
    self.treeFrame.grid_columnconfigure(0, weight=1)
    self.treeFrame.rowconfigure(0, weight=1)

    def autoscrollv(sbar, first, last):
        print 'vert first:%s, last:%s' % (first,last)
        first, last = float(first), float(last)
        if first <= 0 and last >= 1:
            sbar.grid_remove()
        else:
            sbar.grid()
        sbar.set(first, last)

    def autoscrollh(sbar, first, last):
        print 'horz first:%s, last:%s' % (first,last)           
        first, last = float(first), float(last)
        if first <= 0 and last >= 1:
            sbar.grid_remove()
        else:
            sbar.grid()
        sbar.set(first, last)

    vsb = ttk.Scrollbar(self.treeFrame, orient="vertical")
    hsb = ttk.Scrollbar(self.treeFrame, orient="horizontal")

    self.tree = ttk.Treeview(self.treeFrame, height=10, 
                             yscrollcommand=lambda f, l: autoscrollv(vsb, f, l), 
                             xscrollcommand=lambda f, l: autoscrollh(hsb, f, l))  
    self.tree.column("#0", minwidth=400, stretch=True)

    vsb['command'] = self.tree.yview
    hsb['command'] = self.tree.xview

    self.tree.grid(row=0, column=0, sticky='nsew')
    vsb.grid(column=1, row=0, sticky='ns')
    hsb.grid(column=0, row=1, sticky='ew')

    self.tree.insert('', 'end', 'xyz', text='abc'*20)
    for i in range(30):
        self.tree.insert('xyz', 'end', text='%s' % i + 'xyz'*40)

    self.win.mainloop()

if __name__ == "__main__":
    test = Test()

minwidth=tkFont.Font().measure(text)
self.tree.column('#0', minwidth=tcw)