import os
from dpgen import dlog
from pymatgen.ext.matproj import MPRester, MPRestError
from pymatgen.core import Structure
web="materials.org"
[docs]def check_apikey():
try:
apikey=os.environ['MAPI_KEY']
except KeyError:
print("You have to get a MAPI_KEY from "+web)
print("and execute following command:")
print('echo "export MAPI_KEY=yourkey">> ~/.bashrc')
print("source ~/.bashrc")
os._exit(0)
try:
return MPRester(apikey)
except MPRestError:
dlog.info("MPRester Error, you need to prepare POSCAR manually")
os._exit(0)
[docs]def get_structure(mp_id):
mpr=check_apikey()
return mpr.get_structure_by_material_id(mp_id)