Method dump_cache

code-ch13/tx.py:57–61

(cls, filename)

    @classmethod
    def dump_cache(cls, filename):
        with open(filename, 'w') as f:
            to_dump = {k: tx.serialize().hex() for k, tx in cls.cache.items()}
            s = json.dumps(to_dump, sort_keys=True, indent=4)
            f.write(s)


# tag::source1[]