OSX 10.8.4, Enthought Canopy, Neuron 7.3

[ssaluga]

Group,
I cannot get Neuron to run with this configuration. I get the following error:

loading membrane mechanisms from @executable_path/../../share/nrn/demo/release/x86_64/.libs/libnrnmech.so
Additional mechanisms from files
cabpump.mod cachan1.mod camchan.mod capump.mod invlfire.mod khhchan.mod mcna.mod nacaex.mod nachan.mod release.mod
ImportError: No module named site
neurondemo exit status was 1
Press return key to exit

Not sure how to proceed.
Thank you in advance.

Scott J Saluga
Oberlin College

[hines]

ImportError: No module named site

This is due to an incomplete python installation. I'm wondering why python did not print the stacktrace that showed that the underlying problem is a missing
pyconfig.h file
You can avoid it by launching nrniv from a terminal window with the -Py_NoSiteFlag option. (the icons use /Applications/NEURON-7.3/nrn/x86_64/bin/nrngui
and you can change the last line from

Code: Select all

exec "$program" "$NEURONHOME/lib/hoc/nrngui.hoc" "$@" -

to

Code: Select all

exec "$program" =PY_NoSiteFlag "$NEURONHOME/lib/hoc/nrngui.hoc" "$@" -

Better yet, though, do you have a pyconfig.h file on your machine? If so where is it? Perhaps you have not yet installed the xcode command line tools.
You would certainly need that to process mod files.

[ssaluga]

I had already installed the developer tools. Still no go. I have not had this problem in the past. Neuron was always an easy install.
Not sure how to correct this. I am not a Python guy, I just setup and install for labs.
Sorry for the naiveté. :-)

Scott

[hines]

what happens if you start a terminal window and type
which make

[mhohmann]

I am also new to Neuron and had the same problem for several days now, although I tried to use the standalone version.

Today I found out that it was caused by an incompatibility of python 3.X.X with Neuron 7.3.

Uninstalling the python 3 framework via terminal and reinstalling python 2.6.8 (2.7.5 caused another error) fixed the problem.

I could imagine that it's the same problem with the new Canopy/EPD versions.

Cheers,
Matthias