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https://issues.apache.org/jira/browse/ARROW-3656?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Antoine Pitrou resolved ARROW-3656.
-----------------------------------
Resolution: Fixed
Fix Version/s: 0.12.0
Issue resolved by pull request 2875
[https://github.com/apache/arrow/pull/2875]
> [C++] Allow whitespace in numeric CSV fields
> --------------------------------------------
>
> Key: ARROW-3656
> URL: https://issues.apache.org/jira/browse/ARROW-3656
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++
> Affects Versions: 0.11.0
> Reporter: Antoine Pitrou
> Assignee: Antoine Pitrou
> Priority: Major
> Labels: pull-request-available
> Fix For: 0.12.0
>
> Time Spent: 1.5h
> Remaining Estimate: 0h
>
> Pandas allows whitespace before and after numbers in CSV files, but Arrow
> doesn't:
> {code:python}
> >>> s = b"a,b,c\n12 , 34 , 56\n"
> >>> pd.read_csv(io.BytesIO(s))
> a b c
> 0 12 34 56
> >>> csv.read_csv(io.BytesIO(s)).to_pandas()
> a b c
> 0 b'12 ' b' 34 ' b' 56'
> {code}
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