terencehonles commented on a change in pull request #8386:
URL: https://github.com/apache/arrow/pull/8386#discussion_r501463131
##########
File path: dev/tasks/python-wheels/travis.osx.yml
##########
@@ -31,7 +31,7 @@ addons:
- git
- openssl@1.1
- protobuf
- - python@3.8
+ - python@3.9
- thrift
- wget
update: false
Review comment:
I think it's possible Travis doesn't have Python 3.9 in it's homebrew
cache, but I would expect a different error than it succeeds and then
`/usr/local/opt/python@3.8/libexec/bin/pip` is just not found...
Nevermind! Apparently it's just a "warning" :unamused: :
> Warning: 'python@3.9' formula is unreadable: No available formula with the
name "python@3.9"
https://travis-ci.org/github/ursa-labs/crossbow/builds/733873746#L145
##########
File path: python/pyproject.toml
##########
@@ -19,7 +19,9 @@
requires = [
"cython >= 0.29",
"numpy==1.14.5; python_version<'3.7'",
- "numpy==1.16.0; python_version>='3.7'",
Review comment:
Just to follow up, 1.19.2 did work for me, I'm just saying there might
be a earlier release that works. It's probably simplest/best to use 1.19.2
since it's mentioned in their changelog:
> This release supports Python 3.6-3.8. Cython >= 0.29.21 needs to be used
when building with Python 3.9 for testing purposes.
https://numpy.org/devdocs/release/1.19.2-notes.html
...looking at 1.19.1 it says the same thing so it might be safe to go
backwards
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