[Mne_analysis] installation failure on OS X

[Joseph Dien]

        External Email - Use Caution        

Hi,
   I could use some help on installing MNE.  I have some UNIX experience and am a newcomer to Python.  On OS X 10.13.5 I followed the installation instructions at https://www.martinos.org/mne/stable/install_mne_python.html

The version numbers are:
conda 4.5.4
Python 3.6.5 :: Anaconda, Inc.

Everything went fine until I got to:

conda env create -f environment.yml

which resulted in the error:

NotWritableError: The current user does not have write permissions to a required path.
  path: /Users/jdien/.conda/environments.txt

I didn’t notice the error message and went all the way to the end.  

I got the message that MessagePack wasn’t installed, perhaps because of the error, so I installed it manually.

When I wasn’t able to import MNE, I went back and saw the problem.  .conda belonged to root rather than me and I didn’t have permission.  I fixed the permissions problem and redid the conda env create -f environment.yml step.

This time it mostly went fine all the way through.

I did get the message that:

mkl-random 1.0.1 requires cython, which is not installed.
mkl-fft 1.0.0 requires cython, which is not installed.

when I tried manually installing cython, I was informed that it was already installed.

anyway, when I get to the final step, I get:

>>> import mne
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ModuleNotFoundError: No module named 'mne'

I’m not sure what to do at this point.  Any assistance would be greatly appreciated!

Joe

--------------------------------------------------------------------------------

Joseph Dien, PhD
Senior Research Scientist
Department of Human Development and Quantitative Methodology
University of Maryland, College Park
http://joedien.com

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