On 26/02/20 3:56 am, BlindAnagram wrote:
Does that not have the advantage of preventing the global directory being directly fiddled with elsewhere?
That depends on what you mean by "prevent". There is nothing to stop any code from directly accessing the .seen attribute of the class. It might make it less likely that someone will inadvertently write code that does this. If there will only ever be one instance of the dict, another approach would be to put it into a dedicated module together with the functions that access it. That will give you the same amount of protection, while ensuring that there really is only one instance, and making this fact clear to anyone reading the code. -- Greg -- https://mail.python.org/mailman/listinfo/python-list