add mac wheels built for 10.9 / 64b only

[robbuckley]

resolves #42

Since https://github.com/matthew-brett/multibuild/pull/224, setting MB_PYTHON_OSX_VER=10.9 in .travis.yml for osx targets will build for macOS 10.9+. These builds are 64bit only, and are available for Python versions 3.6.5+ / 2.7.15+ see python.org.

The 64/32 bit builds for macOS 10.6+ are supported as before, by setting MB_PYTHON_OSX_VER=10.6 or just omitting it.

The new 10.9 64 bit wheels have a few advantages over 10.6 dual arch wheels:

• extensions using the c++ api link to libc++ rather than libstdc++, which may not always be available on macOS 10.14 and above (i.e. risk that 10.6 wheels may not run on newer systems). See build failure with Xcode 10 - libstdc++ not supported anymore pandas-dev/pandas#23424
• faster to build, around 30min vs 48min
• smaller filesize, typically 10Mb vs 16Mb
• shorter filename, e.g. pandas-0.24.0-cp37-cp37m-macosx_10_9_x86_64.macosx_10_10_x86_64.whl vs pandas-0.24.0-cp37-cp37m-macosx_10_6_intel.macosx_10_9_intel.macosx_10_9_x86_64.macosx_10_10_intel.macosx_10_10_x86_64.whl

[jreback]

you tested he built wheels for this?

[robbuckley]

I've tested 0.24.0 wheels built from this version of multibuild. I have built todays daily master, will let you know when i've tested the osx wheels, probably tomorrow

[jreback]

great thanks

[robbuckley]

I tested the 3.7 / 10.9 wheel from my fork locally. There were 2 failures, I dont think could have been caused by this change (the other fail was very similar):

___________________________________________________ ERROR at setup of test_terminal_unknown_dimensions[] ____________________________________________________
file /Users/robertbuckley/.local/lib/python3.7/site-packages/pandas/tests/io/formats/test_console.py, line 81
  @pytest.mark.parametrize("size", ['', ['']])
  def test_terminal_unknown_dimensions(monkeypatch, size, mocker):
E       fixture 'mocker' not found

can you give me a URL to get the daily wheels from? then i can test the actual wheels built by this PR. Also, any clue for the test failures? thanks

[jreback]

thanks @robbuckley

[jreback]

wheels should build:https://travis-ci.org/MacPython/pandas-wheels/builds/511786781

[robbuckley]

Looks like they all built OK. Where can I download the daily wheels from? I’d like to test a couple of them. The racksoace URL in the readme looks like it only has releases in

[jreback]

@robbuckley is there a reason this 3.6 job is still here? also the 3.5 wheel doesn't have MB_PYTHON_OSX_VER=10.9 is that ok?

[robbuckley]

@jreback the 3.6 / 10.6 job can go. The 3.5 job is built for 10.6 / dual arch because python.org only provide 10.9 / 64b builds of CPython for 3.6.5 and up, and thats what multibuild uses to build the wheels. So if you need to provide a 3.5 wheel, it will have to be 10.6 / dual arch, with the way multibuild is currently implemented