Ezio Melotti added the comment:
> People are going to skip warning boxes if they occur too often.
I'm not sure I agree. This would be true if they were abused for trivial
things ("Warnings: using .pop() on a empty list will return an IndexError!"),
but I don't think they are.
I think warnings are ignored only by people that are already familiar with the
module and its limitation/issues, and that know what they are doing. If the
warning is not evident, people are going to miss it [0].
If warnings are used correctly, people will spot them easily and read them (or
ignore them if they already know what they are warning against).
[0]: I know I missed it in e.g. https://api.jquery.com/die/ -- the function is
deprecated, but (currently) this is only written in the top right corner and in
small in the category at the top -- two places that are easily overlooked.
https://api.jquery.com/toggle-event/ on the other hand has a clearly visible
yellow box at the top that immediately says that the method is deprecated.
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<http://bugs.python.org/issue17006>
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