wjones127 commented on issue #12396:
URL: https://github.com/apache/arrow/issues/12396#issuecomment-1035660882
@rileyhun Does the following snippet fail for you? I'm see conversion of
that schema go through fine in this example.
```python
import pyarrow as pa
import pandas as pd
data = [[('x', 1.0), ('y', 0.0)], [('a', 2.0), ('b', 45.0)]]
ty = pa.map_(pa.string(), pa.float64())
inner = pa.array(data, type=ty)
array = pa.MapArray.from_arrays([0,1], ['one', 'two'], inner)
array = pa.MapArray.from_arrays([0,1], [1], array)
table = pa.table({'col': array})
array.type
# MapType(map<int64, map<string, map<string, double>>>)
table.to_pandas()
# col
# 0 [(1, [('one', [('x', 1.0), ('y', 0.0)])])]
```
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