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metrohash-python

Python bindings for the fast non-cryptograpical hash function MetroHash. MetroHash C++ library by J. Andrew Rogers, Python bindings by Dobatymo.

Requirements

The library has been tested on Linux Python 3.6, and on Windows Python 3.6, 3.7.

Install

pip install metrohash-python

Compilation requires a C++ compiler and optionally Cython.

Examples

The usage is similar to Python's hashlib.

>>> import metrohash
>>> h = metrohash.MetroHash128()
>>> h.update(b'asd')
>>> h.update(b'qwe')
>>> h.digest()
b'K\xfb\x17\xeb>\xb2W\xbd\x93\xad\xf6\x17\xceg\x14\xda'
>>> h.hexdigest()
'4bfb17eb3eb257bd93adf617ce6714da'

Or as simple non-incremental function:

>>> import metrohash
>>> metrohash.metrohash128(b'asdqwe')
b'K\xfb\x17\xeb>\xb2W\xbd\x93\xad\xf6\x17\xceg\x14\xda'

The interface for MetroHash64 and metrohash64 is the same.