json-fingerprint 0.0.4

json fingerprinting tool for creating consistent and comparable checksums of unordered json data

The json-fingerprint package provides easy checksum creation ("fingerprinting") from unordered JSON data.

Installation and use

To install the package, run pip install json-fingerprint.

Below is a sample for creating simple fingerprints:

import json
import json_fingerprint as jfp

obj_1_str = json.dumps([3, 2, 1, {"foo": "bar"}])
obj_2_str = json.dumps([2, {"foo": "bar"}, 1, 3])
fp_1 = jfp.json_fingerprint(obj_1_str, hash_function='sha256', version=1)
fp_2 = jfp.json_fingerprint(obj_2_str, hash_function='sha256', version=1)
print(f'fp_1: {fp_1}')
print(f'fp_2: {fp_2}')

This will output two identical fingerprints regardless of the different ordering of the json elements:

fp_1: jfpv1$sha256$5815eb0ce6f4e5ab0a771cce2a8c5432f64222f8fd84b4cc2d38e4621fae86af
fp_2: jfpv1$sha256$5815eb0ce6f4e5ab0a771cce2a8c5432f64222f8fd84b4cc2d38e4621fae86af