get murmurhash3 of binary file in python

[milahu]

getting the murmur3 hash of a text file is trivial,
and i can get the murmur2 hash of binary files,
see https://github.com/milahu/murmurhash-cli-python

how to get the murmur3 hash of a binary file?

there is https://pypi.org/project/mmh3-binary/ but its an "empty fork"

expected API

#!/usr/bin/env python3

import mmh3

fd = open('/bin/sh', 'rb')
hash = mmh3.hash_from_buffer(fd)

fd is an io.BufferedReader

ideally, avoid passing a bytes array ... this should support "a million gigabyte" files in theory,
so the bytes should be "streamed" or "piped" into the mmh3 function

currently, mmh3 says

mmh3.hash_from_buffer(fd)
TypeError: a bytes-like object is required, not '_io.BufferedReader'

[milahu]

solved in https://stackoverflow.com/questions/52706164/get-murmur-hash-of-a-file-with-python-3

import mmh3, murmurhash

path = '/bin/sh'
bytes = open(path, 'rb').read()

hash3 = mmh3.hash_bytes(bytes).hex()
hash2 = murmurhash.hash_bytes(bytes).to_bytes(4, byteorder='big', signed=True).hex()

print(f"  mmh3 128 {hash3}")
print(f"  mmh3  64 {hash3[0:16]}")
print(f"  mmh3  32 {hash3[0:8]}")

print(f"  mmh2  32 {hash2}")
print(f"  mmh2  16 {hash2[0:4]}")

ideally, avoid passing a bytes array

is currently not supported in python mmh3, but has low priority → closing