On Mon, 2 Oct 2023 at 09:10, Barry via Python-list <python-list@python.org> wrote: > > > > > On 1 Oct 2023, at 19:36, Richard Damon via Python-list > > <python-list@python.org> wrote: > > > > Perhaps a better method would be rather than just using the name and > > catching the exception, use a real already_initialized flag (set to True > > when you initialize), and look it up with getattr() with a default value of > > False. > I would use a class variable not an instance variable. > > class OnlyOne: > sole_instance = None > def __init__(self): > assert OnlyOne.sole_instance is None > OnlyOne.sole_instance = self >
Agreed, except that this should be an if-raise rather than an assert. ChrisA -- https://mail.python.org/mailman/listinfo/python-list
