jo-migo opened a new pull request, #47454:
URL: https://github.com/apache/arrow/pull/47454
### Rationale for this change
Currently, the `maps_as_pydicts` parameter to `MapScalar.as_py` does not
work on nested maps. See below:
```
import pyarrow as pa
t = pa.struct([pa.field("x", pa.map_(pa.string(), pa.map_(pa.string(),
pa.int8())))])
v = {"x": {"a": {"1": 1}}}
s = pa.scalar(v, type=t)
print(s.as_py(maps_as_pydicts="strict"))
# {'x': {'a': [('1', 1)]}}
```
### What changes are included in this PR?
Begin to apply the `maps_as_pydicts` to nested values in map types as well,
update relevant test.
### Are these changes tested?
Yes
### Are there any user-facing changes?
Yes, just a user-facing fix.
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