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https://issues.apache.org/jira/browse/ARROW-7226?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wes McKinney updated ARROW-7226:
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Component/s: Python
> [JSON][Python] Json loader fails on example in documentation.
> -------------------------------------------------------------
>
> Key: ARROW-7226
> URL: https://issues.apache.org/jira/browse/ARROW-7226
> Project: Apache Arrow
> Issue Type: Bug
> Components: Python
> Reporter: Rinke Hoekstra
> Priority: Major
>
> I was just trying this with the example found in the pyarrow docs at
> [http://arrow.apache.org/docs/python/json.html]
> The documented example does not work. Is this related to this issue, or is it
> another matter?
> It says to load the following JSON file:
> {{{"a": [1, 2], "b": {"c": true, "d": "1991-02-03"}}}}
> {{{"a": [3, 4, 5], "b": {"c": false, "d": "2019-04-01"}}}}
> I fixed this to make it valid JSON (It is valid [JSON
> Lines|[http://jsonlines.org/]], but that's another issue):
> {{[{"a": [1, 2], "b": {"c": true, "d": "1991-02-03"}},}}
> {{{"a": [3, 4, 5], "b": {"c": false, "d": "2019-04-01"}}]}}
> Then reading the JSON from a file called `my_data.json`:
> {{from pyarrow import json}}
> {{table = json.read_json("my_data.json")}}
> Gives the following error:
> {code:java}
> ---------------------------------------------------------------------------}}
> ArrowInvalid Traceback (most recent call last)
> <ipython-input-69-f974c21f0941> in <module>()
> 1 from pyarrow import json
> ----> 2 table = json.read_json('test.json')
> ~/.local/share/virtualenvs/parquet-ifRxINoC/lib/python3.7/site-packages/pyarrow/_json.pyx
> in pyarrow._json.read_json()
> ~/.local/share/virtualenvs/parquet-ifRxINoC/lib/python3.7/site-packages/pyarrow/error.pxi
> in pyarrow.lib.check_status()
> ArrowInvalid: JSON parse error: A column changed from object to array
> {code}
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