[jira] [Created] (ARROW-16603) [Python] pyarrow.json.read_json ignores nullable=False in explicit_schema parse_options

[Alenka Frim (Jira)]

Alenka Frim created ARROW-16603:
-----------------------------------

             Summary: [Python] pyarrow.json.read_json ignores nullable=False in 
explicit_schema parse_options
                 Key: ARROW-16603
                 URL: https://issues.apache.org/jira/browse/ARROW-16603
             Project: Apache Arrow
          Issue Type: Bug
          Components: Python
            Reporter: Alenka Frim


Reproducible example:
{code:python}
import json
import pyarrow.json as pj
import pyarrow as pa

s = {"id": "value", "nested": {"value": 1}}

with open("issue.json", "w") as write_file:
    json.dump(s, write_file, indent=4)

schema = pa.schema([
    pa.field("id", pa.string(), nullable=False),
    pa.field("nested", pa.struct([pa.field("value", pa.int64(), 
nullable=False)]))
])

table = pj.read_json('issue.json', 
parse_options=pj.ParseOptions(explicit_schema=schema))

print(schema)
print(table.schema)
{code}



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