Fail to import pymatgen after master branch install

[skk74]

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System

• Pymatgen version:
• Python version: <Only 2.7.* and 3.* supported.>
• OS version: <Ubuntu 16.04>

Summary

• 1-2 short bullet points stating the problem.
  After running python setup.py install, I attempt to import pymatgen and it seems that pymatgen cannot import the coord_cython module. Is there a dependency that I am missing?

Example code

# Example code generating error

Error message

----> 1 import pymatgen

/home/sanjeev/pymatgen/pymatgen/init.py in ()
54 # Allows from pymatgen import for quick usage.
55
---> 56 from pymatgen.core import *
57 from .electronic_structure.core import Spin, Orbital
58 from .ext.matproj import MPRester

/home/sanjeev/pymatgen/pymatgen/core/init.py in ()
7 from .periodic_table import Element, Specie, DummySpecie
8 from .composition import Composition
----> 9 from .structure import Structure, IStructure, Molecule, IMolecule
10 from .lattice import Lattice
11 from .sites import Site, PeriodicSite

/home/sanjeev/pymatgen/pymatgen/core/structure.py in ()
28
29 from pymatgen.core.operations import SymmOp
---> 30 from pymatgen.core.lattice import Lattice
31 from pymatgen.core.periodic_table import Element, Specie, get_el_sp, DummySpecie
32 from monty.json import MSONable

/home/sanjeev/pymatgen/pymatgen/core/lattice.py in ()
14
15 from monty.json import MSONable
---> 16 from pymatgen.util.coord import pbc_shortest_vectors
17 from pymatgen.util.num import abs_cap
18

/home/sanjeev/pymatgen/pymatgen/util/coord.py in ()
9 import numpy as np
10 import math
---> 11 from . import coord_cython as cuc
12
13 """

ImportError: cannot import name coord_cython

# Error message

Suggested solution (if any)

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  here.

Files (if any)

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  either links (e.g., Dropbox or GDrive) for large files or simply paste
  the file below for small files.

<contents of file 1>

[shyuep]

Why not use pip install?

[skk74]

I would like to use the new part of analysis particularly local_env and it doesn't seem to be available on the pip install version.

[mkhorton]

local_env is available on the pip installed version, try pip install pymatgen --upgrade ? We recommend using Python 3+ also since Python 2.x support is being dropped, so check what version of pip you're using.

[xivh]

I got the same error and fixed it with CC=gcc python setup.py develop.

[shyuep]

@xivh I need a more detailed outline of the exact procedure that you did and error message for us to debug. This is an extremely old issue. We have not heard of anyone having this issue in the past four years.

[xivh]

I got the same import error as Sanjeev when installing from master and importing pymatgen.io.vasp.inputs from inside the pymatgen directory. Running CC=gcc python setup.py develop got rid of the error.

But, I just found out that everything works fine if I leave the directory before importing.