pandas_compat. _reconstruct_block uses deprecated kwarg

[jbrockmendel]

arrow/python/pyarrow/pandas_compat.py

Line 426 in 234ff71

def _reconstruct_block(item):

pandas_compat. _reconstruct_block calls _int.make_block with the kwarg fastpath=True. We recently determined that fastpath is not actually used anywhere within make_block, so are moving towards removing it (pandas-dev/pandas#19265). Ideally it would be removed downstream first so we don't cause any collateral damage.

[wesm]

I opened https://issues.apache.org/jira/browse/ARROW-2003 about fixing this. A patch would be welcome