wjones127 opened a new pull request #12007:
URL: https://github.com/apache/arrow/pull/12007
## Summary of Changes
* MapArray should inherit from ListArray to provide access to offsets
property. (C++ class has this inheritance.)
* Updated StructArray Python tutorial to indicate that schemas can now be
inferred in some cases.
* Create MapArray Python guide to show how to construct and access keys and
items. I mention that the `keys` and `items` attributes are flattened, since
that surprised me, and shows how to construct the ListArray containing keys and
items.
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