Ronald Oussoren <ronaldousso...@mac.com> added the comment:
Categories make it possible to add methods to an existing class, but not new attributes. The latter shouldn't be a problem in principle for an NSApplication subclass because only a single instance of the application class will get created and you may as well use global variables for those. In some sense categories are syntactic sugar for monkey patching existing classes, commonly used to add convenience methods to Cocoa classes. ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue46573> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
