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Please try the latest version. I inadvertently reffed the section list iterators twice which prevents deletion of the SectionList
See commit a3d1233b

A fix for nested SectionList iteration in python has been pushed to the github repository. I use the test: $ cat slseq.py from neuron import h a = [h.Section(name='s%d'%i) for i in range(3)] sl = h.SectionList() for s in a: sl.append(sec=s) for s in sl: print(s) print("") for x in sl: for y in sl: p...

The following is intended behavior >>> sl = h.SectionList() >>> sl.allsec() Traceback (most recent call last): File "<stdin>", line 1, in <module> AttributeError: 'hoc.HocObject' object has no attribute 'allsec' that is, the allsec method is restricted to the <HocTopLevelInterpreter>. The changeset ...

Please email me a zip file with all the mod, py, ses, hoc files needed along with instructions on launching the model to produce the result to michael.hines@yale.edu . I will try to reproduce the problem, diagnose, and fix the issue. There are two dimensions here: (mac, mswin) and (7.4, 7.6) as well...

Instead of dragging the mod file, try dragging the folder containing the two mod files on to the mknrndll icon

Is the hoc file in the same folder as the mod file? Dragging the mod file (or its folder) onto the mknrndll icon should create an x86_64 folder in the folder that contained the mod file. Verify this is the case. If you launch nrniv in this folder (now containing the x86_64) folder from a terminal, y...

It is not hard to build from sources on the mac, but be aware that there is an installation pkg available that does not require the "brew" developer tool hints alluded to below and also attempts to install xquartz and command line tools if they are not already installed. See: https://neuron.yale.edu...

Please try: https://neuron.yale.edu/ftp/neuron/versions/alpha/nrn-7.6.2-29-g8e63a96+.w64-mingw-py-27-35-36-37-setup.exe (note the '+' at the end of g8e63a96) Extracellular and LinearMechanism are compatible with MPI but not with multisplit. I.e. for whole cells on a single process where all the gaus...

Informaiton about the build environment used to construct a neuron setup.exe distribution is scattered in the nrn/mingw_files folder. Given a valid build environment, I construct a setup.exe using sh howto 37 36 27 Setting up a build environment is explained in the msys2 file. mingwnotes has some ve...

That is an oversight. cvode wraps ida and the former is persistent while the latter is destroyed/created whenever the model topology, or if the model requires a differential algebraic solver, changes. Extacellular requires ida. I forgot to make all the ida calls to reflect the existing cvode style f...

Ok. so there is no problem with command line tools and readline. I think the next diagnostic test is to install a distributed pkg file for NEURON and see if that works with your python3.7. Please try https://neuron.yale.edu/ftp/neuron/versions/alpha/nrn-7.6.2-18-gcfe5f00.x86_64-osx-py-37-36-27.pkg J...

-with-readline=no

I assume that is just a typo and you used --with-readline=no
Anyway, have you updated the command line tools. And perhaps you can reinstall python3.7.
I build the distribution with python3.7 and do not see this issue.

The icon launch mechanism is fixed with nrn-7.6.2-18-gcfe5f00.x86_64-osx-py-37-36-27.pkg in the alpha download folder. So all functionality on high sierra 10.13 exists with Mojave 10.14. Note that the first launch of an icon may pop up a system request for your permission. Mojave has increased the s...

you are missing a declaration of s
objref s

Please try
nrn-7.6.2-15-gbdf78f2+.x86_64-osx-py-37-36-27.pkg
from
https://neuron.yale.edu/ftp/neuron/versions/alpha/

The icons are non-functional in this version due to the missing launcher program. So you will have to use a terminal window for
nrnivmodl
nrngui
etc.