# tk common message boxes## this module provides an interface to the native message boxes# available in Tk 4.2 and newer.## written by Fredrik Lundh, May 1997# ## options (all have default values):## - default: which button to make default (one of the reply codes)## - icon: which icon to display (see below)## - message: the message to display## - parent: which window to place the dialog on top of## - title: dialog title## - type: dialog type; that is, which buttons to display (see below)# from tkCommonDialog import Dialog ## constants # iconsERROR = "error"INFO = "info"QUESTION = "question"WARNING = "warning" # typesABORTRETRYIGNORE = "abortretryignore"OK = "ok"OKCANCEL = "okcancel"RETRYCANCEL = "retrycancel"YESNO = "yesno"YESNOCANCEL = "yesnocancel" # repliesABORT = "abort"RETRY = "retry"IGNORE = "ignore"OK = "ok"CANCEL = "cancel"YES = "yes"NO = "no"  ## message dialog class class Message(Dialog):    "A message box"     command  = "tk_messageBox"  ## convenience stuff # Rename _icon and _type options to allow overriding them in optionsdef _show(title=None, message=None, _icon=None, _type=None, **options):    if _icon and "icon" not in options:    options["icon"] = _icon    if _type and "type" not in options:    options["type"] = _type    if title:   options["title"] = title    if message: options["message"] = message    res = Message(**options).show()    # In some Tcl installations, Tcl converts yes/no into a boolean    if isinstance(res, bool):        if res: return YES        return NO    return res def showinfo(title=None, message=None, **options):    "Show an info message"    return _show(title, message, INFO, OK, **options) def showwarning(title=None, message=None, **options):    "Show a warning message"    return _show(title, message, WARNING, OK, **options) def showerror(title=None, message=None, **options):    "Show an error message"    return _show(title, message, ERROR, OK, **options) def askquestion(title=None, message=None, **options):    "Ask a question"    return _show(title, message, QUESTION, YESNO, **options) def askokcancel(title=None, message=None, **options):    "Ask if operation should proceed; return true if the answer is ok"    s = _show(title, message, QUESTION, OKCANCEL, **options)    return s == OK def askyesno(title=None, message=None, **options):    "Ask a question; return true if the answer is yes"    s = _show(title, message, QUESTION, YESNO, **options)    return s == YES def askretrycancel(title=None, message=None, **options):    "Ask if operation should be retried; return true if the answer is yes"    s = _show(title, message, WARNING, RETRYCANCEL, **options)    return s == RETRY  # --------------------------------------------------------------------# test stuff if __name__ == "__main__":     print "info", showinfo("Spam", "Egg Information")    print "warning", showwarning("Spam", "Egg Warning")    print "error", showerror("Spam", "Egg Alert")    print "question", askquestion("Spam", "Question?")    print "proceed", askokcancel("Spam", "Proceed?")    print "yes/no", askyesno("Spam", "Got it?")    print "try again", askretrycancel("Spam", "Try again?")