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Louis PotokWes McKinney
6b80fa824ed
Louis Potok authored and Wes McKinney committed 53cc09e5351
ARROW-2626: [Python] Add column name to exception message when writing pandas df fails

Goal is to make debugging easier - it's now possible to see which column failed.

One quick question, I'm not sure if we need to be catching both ArrowInvalid and ArrowTypeError - I think this used to throw ArrowInvalid  but now only throws ArrowTypeError. Thoughts?

Author: Louis Potok <louispotok@gmail.com>

Closes #2075 from louispotok/master and squashes the following commits:

cf23778b <Louis Potok> pylint fixup
bc1a2b54 <Louis Potok> Add column name to exception message when writing pandas df fails