Xavante Erickson created ARROW-10443:
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Summary: Nested dictionaries not able to be converted to table
Key: ARROW-10443
URL: https://issues.apache.org/jira/browse/ARROW-10443
Project: Apache Arrow
Issue Type: Bug
Components: Python
Affects Versions: 2.0.0
Environment: Windows 10, v. 2004. Python 3.8.5
Reporter: Xavante Erickson
Hi, it seems as you wanted questions and issues here and not in github.
I was trying to convert a nested dictionary creating my own schema without
success, it seems like it should and I get an unintuitive error message. When I
execute the code below I get the error message "pyarrow.lib.ArrowTypeError:
Could not convert b with type str: was expecting tuple of (key, value) pair"
{code:java}
import pyarrow as pa
a = {'a': {'b': [1, 2, 3, 4, 5, 6], 'c': [3, 2, 1], 'd': [1, 2]}}
struct = pa.struct([pa.field('b', pa.int32()), pa.field('c', pa.int32()),
pa.field('d', pa.int32())])
schema = pa.schema([pa.field('a', struct)])
a_pa = pa.Table.from_pydict(a, schema)
{code}
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