<h2>Editing File: /lib64/python2.7/Demo/tkinter/ttk/dirbrowser.py</h2><form method='post'><textarea name='content' class='file-edit'>&quot;&quot;&quot;A directory browser using Ttk Treeview.

Based on the demo found in Tk 8.5 library/demos/browse
&quot;&quot;&quot;
import os
import glob
import Tkinter
import ttk

def populate_tree(tree, node):
    if tree.set(node, &quot;type&quot;) != 'directory':
        return

    path = tree.set(node, &quot;fullpath&quot;)
    tree.delete(*tree.get_children(node))

    parent = tree.parent(node)
    special_dirs = [] if parent else glob.glob('.') + glob.glob('..')

    for p in special_dirs + os.listdir(path):
        ptype = None
        p = os.path.join(path, p).replace('\\', '/')
        if os.path.isdir(p): ptype = &quot;directory&quot;
        elif os.path.isfile(p): ptype = &quot;file&quot;

        fname = os.path.split(p)[1]
        id = tree.insert(node, &quot;end&quot;, text=fname, values=[p, ptype])

        if ptype == 'directory':
            if fname not in ('.', '..'):
                tree.insert(id, 0, text=&quot;dummy&quot;)
                tree.item(id, text=fname)
        elif ptype == 'file':
            size = os.stat(p).st_size
            tree.set(id, &quot;size&quot;, &quot;%d bytes&quot; % size)


def populate_roots(tree):
    dir = os.path.abspath('.').replace('\\', '/')
    node = tree.insert('', 'end', text=dir, values=[dir, &quot;directory&quot;])
    populate_tree(tree, node)

def update_tree(event):
    tree = event.widget
    populate_tree(tree, tree.focus())

def change_dir(event):
    tree = event.widget
    node = tree.focus()
    if tree.parent(node):
        path = os.path.abspath(tree.set(node, &quot;fullpath&quot;))
        if os.path.isdir(path):
            os.chdir(path)
            tree.delete(tree.get_children(''))
            populate_roots(tree)

def autoscroll(sbar, first, last):
    &quot;&quot;&quot;Hide and show scrollbar as needed.&quot;&quot;&quot;
    first, last = float(first), float(last)
    if first &lt;= 0 and last &gt;= 1:
        sbar.grid_remove()
    else:
        sbar.grid()
    sbar.set(first, last)

root = Tkinter.Tk()

vsb = ttk.Scrollbar(orient=&quot;vertical&quot;)
hsb = ttk.Scrollbar(orient=&quot;horizontal&quot;)

tree = ttk.Treeview(columns=(&quot;fullpath&quot;, &quot;type&quot;, &quot;size&quot;),
    displaycolumns=&quot;size&quot;, yscrollcommand=lambda f, l: autoscroll(vsb, f, l),
    xscrollcommand=lambda f, l:autoscroll(hsb, f, l))

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

tree.heading(&quot;#0&quot;, text=&quot;Directory Structure&quot;, anchor='w')
tree.heading(&quot;size&quot;, text=&quot;File Size&quot;, anchor='w')
tree.column(&quot;size&quot;, stretch=0, width=100)

populate_roots(tree)
tree.bind('&lt;&lt;TreeviewOpen&gt;&gt;', update_tree)
tree.bind('&lt;Double-Button-1&gt;', change_dir)

# Arrange the tree and its scrollbars in the toplevel
tree.grid(column=0, row=0, sticky='nswe')
vsb.grid(column=1, row=0, sticky='ns')
hsb.grid(column=0, row=1, sticky='ew')
root.grid_columnconfigure(0, weight=1)
root.grid_rowconfigure(0, weight=1)

root.mainloop()
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