Dominic Mayers <dominic_may...@yahoo.com> added the comment:
Just to add that I realize now that tkinter is designed for applications with a root window, the "application window". That's why little attention is given to a possible missing root. In fact, it's interesting that we have this code in simpledialog.py: # Here, if parent is None, we have a run time error. if parent.winfo_viewable(): self.transient(parent) if title: self.title(title) self.parent = parent self.result = None body = Frame(self) self.initial_focus = self.body(body) body.pack(padx=5, pady=5) self.buttonbox() if not self.initial_focus: self.initial_focus = self self.protocol("WM_DELETE_WINDOW", self.cancel) if self.parent is not None: self.geometry("+%d+%d" % (parent.winfo_rootx()+50, parent.winfo_rooty()+50)) But, self.parent will never be None. So the geometry always depends on the parent, which is compatible with the view that we are within an application with a root window - there is always a parent. But it contradicts a bit, in my view, the "simple" in "simpledialog". What about an application with no root window, like git for example, but which, unlike git, needs to create a simple dialog in some occasions? ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue39171> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com