# tk common colour chooser dialogue## this module provides an interface to the native color dialogue# available in Tk 4.2 and newer.## written by Fredrik Lundh, May 1997## fixed initialcolor handling in August 1998# ## options (all have default values):## - initialcolor: colour to mark as selected when dialog is displayed#   (given as an RGB triplet or a Tk color string)## - parent: which window to place the dialog on top of## - title: dialog title# from tkCommonDialog import Dialog  ## color chooser class class Chooser(Dialog):    "Ask for a color"     command = "tk_chooseColor"     def _fixoptions(self):        try:            # make sure initialcolor is a tk color string            color = self.options["initialcolor"]            if type(color) == type(()):                # assume an RGB triplet                self.options["initialcolor"] = "#%02x%02x%02x" % color        except KeyError:            pass     def _fixresult(self, widget, result):        # to simplify application code, the color chooser returns        # an RGB tuple together with the Tk color string        if not result:            return None, None # canceled        r, g, b = widget.winfo_rgb(result)        return (r/256, g/256, b/256), result  ## convenience stuff def askcolor(color = None, **options):    "Ask for a color"     if color:        options = options.copy()        options["initialcolor"] = color     return Chooser(**options).show()  # --------------------------------------------------------------------# test stuff if __name__ == "__main__":     print "color", askcolor()