Check if two dictionaries in Python have the same key structure/schema

dictionaries_match.py

def dictionaries_match(d1, d2):
    # both are dicts, need to check values
    if isinstance(d1, dict) and isinstance(d2, dict):
        d1_keys = d1.keys()
        d1_keys.sort()
        d2_keys = d2.keys()
        d2_keys.sort()
        valid = d1_keys == d2_keys and all(
            dictionaries_match(d1[k], d2[k]) for k in d1.keys()
        )
        return valid
    # one is a dict, other isn't
    elif isinstance(d1, dict) or isinstance(d2, dict):
        return False
    # neither are dicts, assume match
    else:
        return True