def safe_merge_dicts()

in scripts/generators/ecs_helpers.py [0:0]

• 8 lines of code
• 3 McCabe index (conditional complexity)

def safe_merge_dicts(a: Dict[Any, Any], b: Dict[Any, Any]) -> Dict[Any, Any]:
    """Merges two dictionaries into one. If duplicate keys are detected a ValueError is raised."""
    c = deepcopy(a)
    for key in b:
        if key not in c:
            c[key] = b[key]
        else:
            raise ValueError('Duplicate key found when merging dictionaries: {0}'.format(key))
    return c