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Allow nullary function arguments to and_then when monad produces None #13

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suned opened this issue Sep 14, 2019 · 0 comments

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suned commented Sep 14, 2019

E.g this should be ok:

from pfun.maybe import Just
def f():
     return Just(1)

Just(None).and_then(f)

I think the only way to provide correct typing for this is to handle it using the mypy plugin.

suned added the enhancement label

suned closed this as completed

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