About JSON and schema-less data: I need to deal with this fairly often as well, but:
JSON has a data model that includes both mappings and sequences: Sequences (arrays, lists, etc) are the "right" thing to use when an object has zero or more of something. Usually, these somethings are all the same. So you may need to answer the question: how many somethings are there? but rarely: if there are less than this many somethings, then I should use a default value. Mappings (objects, dicts) are the "right" thing to do when an object has a bunch of somethings, and each of them may be different and nameable. In this case, the if this name is in there, use its associated object, otherwise use a default" is a pretty common action. so if your JSON is well formed (and I agree, being schema-less does not mean it is poorly formed) then it should already be using the appropriate data structures, and you are good to go. That being said, maybe a concrete example would persuade the skeptics among us -- though I understand it may be hard to find one that is both non-trivial and simple and small enough to post to a mailing list... -CHB On Fri, Mar 3, 2017 at 12:09 PM, Chris Barker <chris.bar...@noaa.gov> wrote: > On Fri, Mar 3, 2017 at 12:02 PM, Sven R. Kunze <srku...@mail.de> wrote: > >> For me to think (list/tuple).get() was needed would be if lots of folk >> either cast their lists to dicts or made their own list-dict class to solve >> that problem. >> >> >> The easier solution would be to provide list.get ;-) >> > > Exactly -- I think that was the point -- if there is a lot of custom code > out there essentially adding a get() to a list -- then that would indicate > that is is broadly useful. > > For my part, I think casting a list to a dict is often the RIGHT way to > address these issues. > > -CHB > > > -- > > Christopher Barker, Ph.D. > Oceanographer > > Emergency Response Division > NOAA/NOS/OR&R (206) 526-6959 voice > 7600 Sand Point Way NE (206) 526-6329 fax > Seattle, WA 98115 (206) 526-6317 main reception > > chris.bar...@noaa.gov > -- Christopher Barker, Ph.D. Oceanographer Emergency Response Division NOAA/NOS/OR&R (206) 526-6959 voice 7600 Sand Point Way NE (206) 526-6329 fax Seattle, WA 98115 (206) 526-6317 main reception chris.bar...@noaa.gov
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