Wes McKinney created ARROW-1595:
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Summary: [Python] Fix package dependency issues causing build
failures
Key: ARROW-1595
URL: https://issues.apache.org/jira/browse/ARROW-1595
Project: Apache Arrow
Issue Type: Bug
Components: Python
Reporter: Wes McKinney
Assignee: Wes McKinney
Fix For: 0.8.0
We are installing package requirements for the Python build in two steps, and
the second step is causing conda to downgrade NumPy, resulting in an ABI
conflict and broken build. I'm not sure why this suddenly started happening,
but installing the packages all at once and pinning the NumPy version should
fix it
https://travis-ci.org/apache/arrow/jobs/278202858#L9106
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