Commits
Joris Van den Bossche authored and François Saint-Jacques committed e405170e271
ARROW-7593: [CI][Python] Python datasets failing / not run on CI Closes #6214 from jorisvandenbossche/ARROW-7593 and squashes the following commits: 7c9bb887b <Joris Van den Bossche> avoid source_partition to be NULL bdfa549a8 <Joris Van den Bossche> undo build script 207777c26 <Joris Van den Bossche> add more ARROW_DATASET c0f55a267 <Joris Van den Bossche> ARROW-7593: Python datasets failing / not run on CI Authored-by: Joris Van den Bossche <jorisvandenbossche@gmail.com> Signed-off-by: François Saint-Jacques <fsaintjacques@gmail.com>