[ARROW-10993] [CI][macOS] Fix Python 3.9 installation by Homebrew

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.0.0
• Component/s: Continuous Integration
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/18429
• Assignee: Kouhei Sutou
• Reporter: Kouhei Sutou
• Created: 20/Dec/20 19:17
• Updated: 11/Jan/23 08:16
• Resolved: 20/Dec/20 20:08

Description

https://github.com/apache/arrow/runs/1579780011#step:4:520

==> Pouring python@3.9-3.9.1_1.catalina.bottle.tar.gz
Error: The `brew link` step did not complete successfully
The formula built, but is not symlinked into /usr/local
Could not symlink bin/2to3
Target /usr/local/bin/2to3
already exists. You may want to remove it:
  rm '/usr/local/bin/2to3'

To force the link and overwrite all conflicting files:
  brew link --overwrite python@3.9

To list all files that would be deleted:
  brew link --overwrite --dry-run python@3.9

Possible conflicting files are:
/usr/local/bin/2to3 -> /Library/Frameworks/Python.framework/Versions/2.7/bin/2to3

Issue Links

• links to: GitHub Pull Request #8976