Instructions don't work. Cant create CoreML model, crashes about turicreate

[srikris]

Are you on a python installed by homebrew? Currently, coremltools doesn't work with that Python version.
apple/coremltools#88

This could explain your current crash.

[amayers]

Yes I am on Python installed by homebrew. How do I install a version of python that works with this project since it seems like it's so picky about the version & install method???

[igiloh]

Hi @amayers , thank you for taking interest in Turi Create!

The documentation issue have already been fixed, as you can see here.

As @srikris have mentioned - the CoreML team is aware of the problem with Homebrew.
There are several recommended ways to install python on macOS:

1. Using Anaconda - my personal favorite.
2. Downloading directly from python.org.
3. Use the native python version that comes with macOS, which is located in /usr/bin/python.

All of which have been tested and work well with both turicreate and coremltools.
If you have any further questions about installing or using turicreate - please feel free to ask.

[amayers]

Hi @igiloh I would have loved to use the native python version that ships with macOS, however Turi Create isn't even found when you try to use pip install -U turicreate on it. It wasn't until I installed 2.7.14 from Homebrew that Turi Create could be pip installed.

[igiloh]

Hi @amayers, thanks again for the further input.

I've just re-tested on a clean macOS10.12 and 10.13 machines - and on both I was able to successfully perform

pip install --upgrade pip
pip install -U turicreate

I was also able to create a model and export it to Core ML.

Which macOS version are you using?
Can you please print out the current pip version you're using, and the error you're getting?

[amayers]

I just uninstalled python from homebrew leaving just the system python installed.

python --version
Python 3.6.3 :: Anaconda, Inc.

Then I recreated the virtual environment:

virtualenv egg_environment
Using base prefix '/anaconda3'
New python executable in /Users/amayers/Code/Side_Projects/egg_environment/bin/python
Installing setuptools, pip, wheel...done.
Andrews-13-MacBook-Pro:Side_Projects amayers$ source egg_environment/bin/activate
(egg_environment) Andrews-13-MacBook-Pro:Side_Projects amayers$ pip install -U turicreate
Collecting turicreate
  Could not find a version that satisfies the requirement turicreate (from versions: )
No matching distribution found for turicreate

I also tried again adding the pip install --upgrade pip line that wasn't in the instructions. It gave the output Requirement already up-to-date: pip in ./egg_environment/lib/python3.6/site-packages, and didn't fix the install error.

I'm running macOS 10.13.2 (17C88), and pip: pip 9.0.1 from /Users/amayers/Code/Side_Projects/egg_environment/lib/python3.6/site-packages (python 3.6)

[igiloh]

As mentioned in the documentation, turicreate only supports python 2.7 at the moment. Any python 2 version from 2.7.8 and up to the latest 2.7.14 (released 9/2017) should work.
Python 3 support is still an ongoing process, as you can see here: #2

macOS 10.13 comes natively with python 2.7.10, and should support the turicreate package out of the box.
If you do choose to install Anaconda (which again, I personally really enjoy) - please make sure to install the python 2.7 version, which is available here.

[srikris]

For the macOS native python, it should look like this. (It seems you have another version of python installed)

$ python --version
Python 2.7.10
$ which python
/usr/bin/python

If you see /usr/local/bin/python for your python location then you probably have a mismatched version of Python and pip.

As @igiloh mentioned, your Python seems to be 3.6 which isn't yet supported (we will be fixing that soon). So Python 2.7 should work.

[amayers]

After I installed Anaconda 2.7 it now works. But this is the first time I've done any python on this machine, and it had 3.6 on it. I guess some 3rd party app updated it?