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import os
from ctypes import CDLL
from ctypes.util import find_library
from django.conf import settings
# Creating the settings dictionary with any settings, if needed.
GEOIP_SETTINGS = {key: getattr(settings, key)
for key in ('GEOIP_PATH', 'GEOIP_LIBRARY_PATH', 'GEOIP_COUNTRY', 'GEOIP_CITY')
if hasattr(settings, key)}
lib_path = GEOIP_SETTINGS.get('GEOIP_LIBRARY_PATH', None)
# The shared library for the GeoIP C API. May be downloaded
# from http://www.maxmind.com/download/geoip/api/c/
if lib_path:
lib_name = None
else:
# TODO: Is this really the library name for Windows?
lib_name = 'GeoIP'
# Getting the path to the GeoIP library.
if lib_name:
lib_path = find_library(lib_name)
if lib_path is None:
raise RuntimeError('Could not find the GeoIP library (tried "%s"). '
'Try setting GEOIP_LIBRARY_PATH in your settings.' % lib_name)
lgeoip = CDLL(lib_path)
# Getting the C `free` for the platform.
if os.name == 'nt':
libc = CDLL('msvcrt')
else:
libc = CDLL(None)
free = libc.free
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