Compare two YAMLs recursively

compare-yamls.py

import sys
import yaml


def compare(r1, r2, prefix=''):
    if isinstance(r1, dict):
        for (k1, v1), (k2, v2) in zip(r1.items(), r2.items()):
            if k1 != k2:
                print(prefix, 'key mismatch:', k1, '!=', k2)
            else:
                compare(v1, v2, prefix=f'{prefix}.{k1}')
    elif isinstance(r1, list):
        for idx, (v1, v2) in enumerate(zip(r1, r2)):
            compare(v1, v2, prefix=f'{prefix}.{idx}')
    elif r1 != r2:
        print(prefix, 'value mismatch:', r1, '!=', r2)


with open(sys.argv[1]) as f1:
    f1 = yaml.safe_load(f1)
    with open(sys.argv[2]) as f2:
        f2 = yaml.safe_load(f2)
        compare(f1, f2)