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safetkinter.py (Python recipe) by Stephen Chappell
ActiveState Code (http://code.activestate.com/recipes/578153/)

Register tkinter classes with threadbox for immediate usage.

This module clones several classes from the tkinter library for use with threads. Instances from these new classes should run on whatever thread the root was created on. Child classes inherit the parent's safety.

Python, 68 lines
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"""Register tkinter classes with threadbox for immediate usage.

This module clones several classes from the tkinter library for use with
threads. Instances from these new classes should run on whatever thread
the root was created on. Child classes inherit the parent's safety."""

__author__ = 'Stephen "Zero" Chappell <Noctis.Skytower@gmail.com>'
__date__ = '4 June 2012'
__version__ = 1, 0, 0

################################################################################

import time
import tkinter.filedialog
import tkinter.font
import tkinter.messagebox
import tkinter.ttk
import threadbox

################################################################################

tkinter.NoDefaultRoot()

@threadbox.MetaBox.thread
def mainloop(self):
    "Creates a synthetic main loop so that threads can still run."
    while True:
        try:
            self.update()
        except tkinter.TclError:
            break
        else:
            time.sleep(tkinter._tkinter.getbusywaitinterval() / 1000)

threadbox.MetaBox.clone(tkinter.Misc, {'mainloop': mainloop})

################################################################################

OldButton = threadbox.MetaBox.clone(tkinter.Button)
Canvas = threadbox.MetaBox.clone(tkinter.Canvas)
OldFrame = threadbox.MetaBox.clone(tkinter.Frame)
Menu = threadbox.MetaBox.clone(tkinter.Menu)
PhotoImage = threadbox.MetaBox.clone(tkinter.PhotoImage)
Spinbox = threadbox.MetaBox.clone(tkinter.Spinbox)
StringVar = threadbox.MetaBox.clone(tkinter.StringVar)
Text = threadbox.MetaBox.clone(tkinter.Text)
Tk = threadbox.MetaBox.clone(tkinter.Tk)
Toplevel = threadbox.MetaBox.clone(tkinter.Toplevel)

################################################################################

Button = threadbox.MetaBox.clone(tkinter.ttk.Button)
Checkbutton = threadbox.MetaBox.clone(tkinter.ttk.Checkbutton)
Entry = threadbox.MetaBox.clone(tkinter.ttk.Entry)
Frame = threadbox.MetaBox.clone(tkinter.ttk.Frame)
Label = threadbox.MetaBox.clone(tkinter.ttk.Label)
Labelframe = threadbox.MetaBox.clone(tkinter.ttk.Labelframe)
Progressbar = threadbox.MetaBox.clone(tkinter.ttk.Progressbar)
Scale = threadbox.MetaBox.clone(tkinter.ttk.Scale)
Scrollbar = threadbox.MetaBox.clone(tkinter.ttk.Scrollbar)
Sizegrip = threadbox.MetaBox.clone(tkinter.ttk.Sizegrip)
Treeview = threadbox.MetaBox.clone(tkinter.ttk.Treeview)

################################################################################

Directory = threadbox.MetaBox.clone(tkinter.filedialog.Directory)
Font = threadbox.MetaBox.clone(tkinter.font.Font)
Message = threadbox.MetaBox.clone(tkinter.messagebox.Message)

safetkinter is the primary GUI library used in Directory Pruner 4 (recipe 578154). It provides a thread-safe API by using threadbox (recipe 578152) to contain execution to specific threads as needed.

Tags: threadsafe, tkinter