Anonymous user
Talk:Practical numbers: Difference between revisions
Haskell isn't Python.
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==Python: Comment on type hints for the functional example==
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Hout Wrote:
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:Clarity about the '''return type semantics''', is however, very useful when reasoning about pure functions, and my personal approach is to add light informal '''comments''' about the type, in a Hindley Milner idiom, which lends itself well to brief and clean notes on the type of '''curried''' functions, which are more easily composable, especially with higher order functions, and which I generally prefer to use.
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:I've been asked (always by the same person :-) why I don't find the idiom of Python '''compiler type-hints''' a good match for my semantic type '''comments''', and the answer is essentially that the compiler type hints are not a clear or helpful notation for this purpose – not just because they generally involve more typing and visual noise, but also, and in particular, because with '''curried''' functions the compiler hint notation becomes swamped by use of the cognitively redundant `Callable` keyword, which degrades clarity, and imposes burden, for the human reader.
I replaced misleading Haskell-language type comments by Python typing checked with MyPy. Python can add typing in comments as part of the language and that too is not the Haskell that was replaced.<br>
--[[User:Paddy3118|Paddy3118]] ([[User talk:Paddy3118|talk]]) 09:17, 31 March 2021 (UTC)
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: I quite understand that our approaches differ, and the contrast adds to the value of Rosetta code, as defined on the landing page
: Deleting informative comments is gratuitous, and inconsistent with the goals of Rosetta code, and removes value without adding any. There is a name for this. [[User:Hout|Hout]] ([[User talk:Hout|talk]]) 09:36, 31 March 2021 (UTC)
:: Python although a language spec. is commonly referred to as being an interpreter as its overwhelming implementaton, CPython is an interpreter. Python does allow types as comments in its format. Haskell typing is not Python typing. Your '''Haskell''' comments are at odds with the typing of '''Python''', as you do not defend. --[[User:Paddy3118|Paddy3118]] ([[User talk:Paddy3118|talk]]) 10:09, 31 March 2021 (UTC)
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