setting up python interface with cmake

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1

I forgot to add info about the error.
When I go into python and type the following I get the error below

from lammps import lammps
l=lammps()
Traceback (most recent call last):
File “”, line 1, in
File “/Users/daw/D_downloaded_software/D_LAMMPS/lammps-12Dec18/python/lammps.py”, line 94, in init
if not name: self.lib = CDLL(“liblammps.so”,RTLD_GLOBAL)
File “/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/ctypes/init.py”, line 365, in init
self._handle = _dlopen(self._name, mode)
OSError: dlopen(liblammps.so, 10): image not found

I had defined these environment variables in .cshrc:

setenv DYLD_LIBRARY_PATH /usr/local/lib:/Users/daw/D_downloaded_software/D_LAMMPS/lammps-12Dec18/build_serial
setenv LD_LIBRARY_PATH /usr/local/lib:/Users/daw/D_downloaded_software/D_LAMMPS/lammps-12Dec18/build_serial
setenv PYTHONPATH /Users/daw/D_downloaded_software/D_LAMMPS/lammps-12Dec18/python

2

but did you build the shared library and installed the python module as required?

axel.

3

you may want to download the very latest LAMMPS patch version and build with CMake instead of the conventional build. there was some change contributed to help building/installing the shared library on MacOSX…

axel.