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"""
Find the LibXC shared object and imports it as core.
"""
import ctypes
import ctypes.util
import numpy as np
import os
# Attempt to load the compiled C code
core = None
__libxc_path = None
# First check the local folder
try:
__libxc_path = os.path.abspath(os.path.dirname(__file__))
core = np.ctypeslib.load_library("libxc", __libxc_path)
except OSError:
# If no libxc is local, check LD_LIBRARY_PATHS's
__libxc_path = ctypes.util.find_library("xc")
# If we still havent found it, give up and throw an error
if __libxc_path is None:
raise ImportError(
"LibXC Shared object not found, searched Python module local directory and library paths"
)
# Load the C object
core = ctypes.CDLL(__libxc_path)
def get_core_path():
"""
Returns the path of the loaded LibXC shared object.
"""
return __libxc_path
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