On 2017-03-15 19:00, Kwankyu Lee wrote:
The following statement from PEP8 is quite definitive:__double_leading_and_trailing_underscore__ : "magic" objects or attributes that live in user-controlled namespaces. E.g. __init__ , __import__ or __file__ . Never invent such names; only use them as documented.
That's true but I don't like that they don't say what you should use instead. I think the alternatives are even worse (see my initial post in this thread).
One minor "harm" that I can think of is that an uninitiated person may misunderstand __pari__ as a new python magic attribute and look for it in python manual :-)
Let me mention again that such names have been invented in the past, like __array__ for NumPy. As far as I know, this is not at all controversial.
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