Commits

Wes McKinney authored 3e754a0d0b3
ARROW-1155: [Python] Add null check when user improperly instantiates ArrayValue instances Author: Wes McKinney <wes.mckinney@twosigma.com> Closes #786 from wesm/ARROW-1155 and squashes the following commits: e496e919 [Wes McKinney] Add null check when user improperly instantiates ArrayValue instances