The same question:ImportError: cannot import name get_equivalent_smallest_vectors

[llzz11]

Thank u for your reply.But after I install your phonopy package with command"python2 setup.py install",it shows that I have installed it successfully.And I also install molatics with command “python2 setup.py install”again ,it also turns out being installed successfully.But again,when I run the code "nohup mdfc --readfc2=force_constants.hdf5 --dim="9 1 1" --ti --ri --precision=1e-6&",it shows the same mistake as before.

Traceback (most recent call last):
File "/usr/local/bin/mdfc", line 13, in
from mdfc import MolecularDynamicsForceConstant as MDFC
File "/usr/local/lib/python2.7/dist-packages/mdfc/init.py", line 7, in
from phonopy.harmonic.dynamical_matrix import get_equivalent_smallest_vectors
ImportError: cannot import name get_equivalent_smallest_vectors

Is there any details should I take care ?
Looking forward to your reply~~
Jason,
Sincerely thanks

[Johnson-Wang]

Weird... It should be found as you can locate the python module phonopy.harmonic.dynamical_matrix.get_equivalent_smallest_vectors yourself in phonopy module. Maybe you should check whether your PYTHONPATH includes the python installation directory?

[llzz11]

I put file"dynamical_matrix.py"into folder“mdfc”，and change all "phonopy.harmonic.dynamical_matrix."into"dynamical_matrix.py".This problem seems to be solved.But new failing occurs，when I run commands "mdfc" directly,it turns out:
root@lz-VirtualBox:/home/lz/Desktop/molatics-mastermdfc# mdfc
_

---

| / | _ | / |
| |/| | | | | | | |
| | | | || | || |
|| ||/|| _|

                     1.3

Traceback (most recent call last):
File "/usr/local/bin/mdfc", line 297, in
is_hdf5=settings.get_is_hdf5())
File "/usr/local/lib/python2.7/dist-packages/mdfc/init.py", line 73, in init
self._set_supercell()
File "/usr/local/lib/python2.7/dist-packages/mdfc/init.py", line 470, in _set_supercell
self._symprec)
File "build/bdist.linux-x86_64/egg/phonopy/structure/cells.py", line 44, in get_supercell
def trim_cell(relative_axes, cell, symprec):
File "build/bdist.linux-x86_64/egg/phonopy/structure/cells.py", line 130, in init
line += " %5.3f" % magmoms[i]
TypeError: long() argument must be a string or a number, not 'NoneType'

[Johnson-Wang]

Sorry for the late response. I would guess that the phonopy version you installed is different from mine. Actually I forked the phonopy project quite long ago and it might not be compatible any more. My suggestion is that you uninstall phonopy first and then install mine.