Conda package broken on macOS with python 3.6.3

[Malcolm Ramsay]

When installing the freud conda package into a new conda environment with python 3.6.3 which is the default python 3.6 version,

$  conda create -n freud -c glotzer freud

the install is fine, but when trying to import freud

$ python -c "import freud"
Fatal Python error: PyThreadState_Get: no current thread

zsh: abort           python -c "import freud"

Unusually by installing python 3.6.1

$ conda install python=3.6.1

the command which previously failed

$ python -c "import freud"

now works fine.

I have also checked using python 3.5, and the 3.5.4 doesn't work, but 3.5.2 does.

I raised an issue in conda-build related to this in that it is not possible to pin the patch version of python as a run or test dependency https://github.com/conda/conda-build/issues/2571.

I have attached the environment.yml file of the failing environment.

[Bradley Dice]

Thanks for reporting this, @malramsay64. We have been working on this issue today. It seems to be caused by library linking to Python that may be avoidable. @joaander is working on a solution. I will update this if/when we release a new conda package that solves the problem.

Related issue #145.

[Joshua Anderson]

Don't link against the python library

This should fix ABI compatibility issues with freud binary builds and different python minor versions.

refs #154

→ <<cset 0b7a1f9a2ce0>>

[Joshua Anderson]

Don't link against the python library

This should fix ABI compatibility issues with freud binary builds and different python minor versions.

refs #154

→ <<cset 0b7a1f9a2ce0>>

[Bradley Dice]

This problem should be solved with the release of v0.6.3. Please upgrade to the latest freud release if this problem occurs.