python3 tkinter filedialog has memory fault

[Fred Brasch]

The following code

from tkinter import Tk,filedialog

count = 0
while count < 3:
    root = Tk()
    filename = filedialog.askopenfilename()
    #filename = filedialog.askdirectory()
    #color = colorchooser.askcolor()
    #msg = messagebox.showinfo(message = "hello mb")
    print("dialog closed")
    root.destroy()
    count += 1
    print("count",count)

gives a alloc: invalid block error and halts on an rpi 3 running Jessie. It works fine on a windows 7 PC, i.e. root can be repetitively created and destroyed. The choosecolor and message box dialogs work as expected on both platforms.

I have installed python3-dev and matplotlib python related packages in addition to the python3 that came with raspbian, but as far as I know, that shouldn't matter.

the exact output from running python3 testtk.py is

dialog closed
count 1
alloc: invalid block: ox1ff23b8: 38 1
Aborted

The information after invalid block: changes everytime it's run.

Running within Idle3 has the same behavior though error output.

A less rigorous investigation makes me think python2 may have the same problem.

REPL says
Python 3.4.2 (default, Oct 19 2014, 13:31:11)
[GCC 4.9.1] on linux

[Fred Brasch (gnc289)]

Running within Idle3 has the same behavior though NO error output.