On 16/07/2019 22:56, Mats Wichmann wrote: >> thrown. This gets watered down to the mantra "Don't throw exceptions from >> within constructors." Does this carry over to Python?
> > If you mean __init__, that's not a constructor, so you should set your > mind at rest :) It's more properly an "initializer", the instance has > already been constructed when it's called. FWIW The true constructor is __new__() and its quite rarely overridden by application programmers. But if you do, it's not common that you'd do anything that would merit an exception. __new__ pretty much just sets up the structure of the object ready for initialisation by __init__. Incidentally, this two stage construction/initialisation is also found in other OOP languages like Smalltalk and Objective C (and Lisp?). -- Alan G Author of the Learn to Program web site http://www.alan-g.me.uk/ http://www.amazon.com/author/alan_gauld Follow my photo-blog on Flickr at: http://www.flickr.com/photos/alangauldphotos _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
