Serhiy Storchaka added the comment: Now it is clear that '`' is bad prefix.
There are 32 non-alphanumerical non-control ASCII characters: '!', '"', '#', '$', '%', '&', "'", '(', ')', '*', '+', ',', '-', '.', '/', ':', ';', '<', '=', '>', '?', '@', '[', '\\', ']', '^', '_', '`', '{', '|', '}', '~'. '{', '}', '"', '[', ']', '$', '\\' is basic part of Tcl syntax. '(' and ')' are used in array indexing. ';' is command delimiter. '#' is a commenting command (and what is more important, it is widely used in generated by Tk widget names). '.' is component delimiter in widget names. '-' starts an option. '%' starts a substitution in callbacks. '?' and '*' are used in patterns. "'", ',', and '`' look like grit on my screen. What is left? '!', '&', '+', '/', ':', '<', '=', '>', '@', '^', '_', '|', '~'. '@' starts coordinates or image path in some commands. '~' is expanded to home directory in paths. '!' is used for comments in X resources. '|' looks too distant from preceding dot and following name. Not all of these arguments are absolute stoppers. Personally I like '!', '?' and '@'. Unlikely generated names are saved in X resources or searched by patterns. If you need the widget being named, you just specify a name instead of allowing Tkinter generate arbitrary one. What are your preferences Terry? ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue27025> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com