Commits

Wes McKinney authored a155182f695
ARROW-4823: [C++][Python] Do not close raw file handle in ReadaheadSpooler, check that file handles passed to read_csv are not closed Author: Wes McKinney <wesm+git@apache.org> Closes #4610 from wesm/ARROW-4823 and squashes the following commits: 5d13f23e6 <Wes McKinney> Do not close raw file handle in ReadaheadSpooler and check that this flows through to fix reported issue with pyarrow.csv.read_csv