oleksandr-yatsuk opened a new issue, #14116:
URL: https://github.com/apache/arrow/issues/14116
Hello guys,
We are trying to write to parquet python dictionaries into `map<string,
string>` column and facing an issue converting them to `pyarrow.Table`
The simple code snippet
```
def test_map_type(self):
from pyarrow import Table
from pyarrow import int64, map_, schema, string, field
tags_updated = {
"id": 1,
"tags": {
"tag1": "value1",
"tag2": "value2",
}
}
pyarrow_schema = schema([
field("id", int64(), False),
field("tags", map_(string(), string()), False)
])
table = Table.from_pylist(mapping=[tags_updated],
schema=pyarrow_schema)
print(table.to_pydict())
```
fails with an error
```
pyarrow/array.pxi:39: in pyarrow.lib._sequence_to_array
???
pyarrow/error.pxi:143: in pyarrow.lib.pyarrow_internal_check_status
???
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
_ _
> ???
E pyarrow.lib.ArrowTypeError: Could not convert {'tag1': 'value1', 'tag2':
'value2'} with type dict: was not a sequence or recognized null for conversion
to list type
pyarrow/error.pxi:122: ArrowTypeError
```
We are using `pyarrow == 7.0.0`, but id does not work with `pyarrow ==
9.0.0` either
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