On Mon, Jul 23, 2018 at 11:34 AM Robert Vanden Eynde <robertv...@gmail.com>
wrote:
> The default could be at the end with an argument to unboxing :
>
> favorite = NoneAware(cfg).user.profile.food.unbox("Spam")
>
That's what PyMaybe does:
https://pymaybe.readthedocs.io/en/latest/readme.html#examples-use-cases
PyMaybe is a great implementation of the idea, but it's obviously limited
in what it can do. It doesn't have short-circuiting (but it uses lambda to
approximate it). It swallows a multitude of attribute and look up errors.
It doesn't support coalescing. And it can't be used with any library that
isn't PyMaybe-aware.
For people who want to explore deeply nested objects/dictionaries (perhaps
from unserialized JSON), there's also a pure Python library for that:
http://objectpath.org/
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