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I had a quick look, but I didn't see filtering expressions, only shaping expressions. It seems like glom is more of a result shaper/mapper. Can you filter with glom (maybe with lambdas or something)? I could see the two going together quite well if you were "glomming" a big Python object.

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Filtering is supported through the OMIT value: http://glom.readthedocs.io/en/latest/api.html#glom.OMIT (another example: http://glom.readthedocs.io/en/latest/snippets.html#filtered-... )

Lambdas and functions are always a safe fallback, but glom does its best to keep your specs readable and roundtrippable (gotta love a nice repr()).

That's cool! Thank you for pointing it out!

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