pylibloc - Pure python libloc (location.db) implementation

libloc is a maxmind-GeoIP alternative to lookup IPv4/IPv6 address geo-location.

Also look at my minimal C implementation here: https://github.com/gereoffy/ipstat46/blob/main/nanolibloc.c

Get database from:

https://location.ipfire.org/databases/1/location.db.xz

Done:

open database (even from xz file) and check magic
load database headers & data (in linear order)
IPv4 & IPv6 address lookup (from bytes or string format)
speed optimization! using pypy it's 2x faster than original libloc py binding...
no redundant v4->v6 addr conversions, no recursive binary tree traversal...

TODO:

maybe a better API...

Benchmark: (lookup of all the 500k+ unique addresses from file 'v46cimek2')

original libloc py-binding (python3.10): 1385 ms
my code running by pypy (3.10): 564 ms !!!
my code running by python3.10: 3650 ms
my code running by python3.11: 3074 ms (pure python only ~2x slower than libloc C code)

Usage:

db=LocDB("location.db.xz")
print(db.lookup4(bytes([193,224,41,22])))
print(db.lookup6(bytes([0x2a,1,0x6e,0xe0, 0,1, 2,1,   0,0,0,0,0xB,0xAD,0xC0,0xDE])))
print(db.lookup("1.1.1.1"))
print(db.lookup("2a00:1450:400d:806::2005"))

output:
(('HU', 'EU', 'Hungary'), 1955, 'KIFU (Governmental Info Tech Development Agency)', 0, 15)
(('HU', 'EU', 'Hungary'), 62214, 'Rackforest Zrt.', 0, 40)
(('AU', 'OC', 'Australia'), 13335, 'CLOUDFLARENET', 4, 24)
(('IE', 'EU', 'Ireland'), 15169, 'GOOGLE', 0, 48)

gereoffy/pylibloc

pylibloc - Pure python libloc (location.db) implementation